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dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Audio compression technology</div> <p><b>Dolby AC-4</b> is an audio compression technology developed by <a href="/wiki/Dolby_Laboratories" class="mw-redirect" title="Dolby Laboratories">Dolby Laboratories</a>.<sup id="cite_ref-DolbyAC4ServicesJune2015Dolby_1-0" class="reference"><a href="#cite_note-DolbyAC4ServicesJune2015Dolby-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Dolby AC-4 bitstreams can contain audio channels and/or audio objects.<sup id="cite_ref-DolbyAC4ServicesJune2015Dolby_1-1" class="reference"><a href="#cite_note-DolbyAC4ServicesJune2015Dolby-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Dolby AC-4 has been adopted by the <a href="/wiki/Digital_Video_Broadcasting" class="mw-redirect" title="Digital Video Broadcasting">DVB</a> project and standardized by the <a href="/wiki/ETSI" class="mw-redirect" title="ETSI">ETSI</a>.<sup id="cite_ref-DolbyPlansAudioSeptember2015Forbes_2-0" class="reference"><a href="#cite_note-DolbyPlansAudioSeptember2015Forbes-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Dolby_AC-4&action=edit&section=1" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Its development started in late 2011 to create a high-quality audio format to be used in streaming services, future TV broadcasts, and mainly to replace the traditional <a href="/wiki/Dolby_AC-3" class="mw-redirect" title="Dolby AC-3">Dolby AC-3</a>.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (June 2023)">citation needed</span></a></i>]</sup> AC-4 was standardized by the <a href="/wiki/European_Telecommunications_Standards_Institute" title="European Telecommunications Standards Institute">European Telecommunications Standards Institute</a> (ETSI) under the code "TS 103 190" in April 2014,<sup id="cite_ref-DolbyAC4ServicesJune2015Dolby_1-2" class="reference"><a href="#cite_note-DolbyAC4ServicesJune2015Dolby-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> and in December 2014 <a href="/wiki/Dolby_Laboratories" class="mw-redirect" title="Dolby Laboratories">Dolby Laboratories</a> approved the sound format for commercial use.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (June 2023)">citation needed</span></a></i>]</sup> </p><p>On March 10, 2015, the <a href="/wiki/Advanced_Television_Systems_Committee" title="Advanced Television Systems Committee">Advanced Television Systems Committee</a> (ATSC) announced that Dolby AC-4 was one of the three standards proposed for the audio system of <a href="/wiki/ATSC_3.0" title="ATSC 3.0">ATSC 3.0</a>.<sup id="cite_ref-ATSCAudioMarch2015_3-0" class="reference"><a href="#cite_note-ATSCAudioMarch2015-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>On July 14, 2015, Dolby Laboratories announced that <a href="/wiki/Sony" title="Sony">Sony</a> Visual Products and <a href="/wiki/Vizio" title="Vizio">Vizio</a> would support Dolby AC-4.<sup id="cite_ref-SonyVizioDolbyAC42015Businesswire_4-0" class="reference"><a href="#cite_note-SonyVizioDolbyAC42015Businesswire-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>On April 14, 2016, Dolby Laboratories announced that <a href="/wiki/Samsung" title="Samsung">Samsung</a> would ship TVs with support for Dolby AC-4 in 2017.<sup id="cite_ref-DolbyAC4SamsungApril2016Businesswire_5-0" class="reference"><a href="#cite_note-DolbyAC4SamsungApril2016Businesswire-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Technical_details">Technical details</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Dolby_AC-4&action=edit&section=2" title="Edit section: Technical details"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Dolby AC-4 can have up to 5.1 core audio channels which all Dolby AC-4 decoders are required to decode.<sup id="cite_ref-DolbyAC4ServicesJune2015Dolby_1-3" class="reference"><a href="#cite_note-DolbyAC4ServicesJune2015Dolby-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Additional audio channels may be encoded as side signals which Dolby AC-4 decoders can optionally support which would allow for the delivery of 7.1.4 channel audio.<sup id="cite_ref-DolbyAC4ServicesJune2015Dolby_1-4" class="reference"><a href="#cite_note-DolbyAC4ServicesJune2015Dolby-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Side signals may also contain audio objects.<sup id="cite_ref-DolbyAC4ServicesJune2015Dolby_1-5" class="reference"><a href="#cite_note-DolbyAC4ServicesJune2015Dolby-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Dolby AC-4 has two different channel based encoding tools with Advanced Joint Channel Coding (A-JCC) used for low bit rates and Advanced Coupling (A-CPL) used for high bit rates.<sup id="cite_ref-DolbyAC4ServicesJune2015Dolby_1-6" class="reference"><a href="#cite_note-DolbyAC4ServicesJune2015Dolby-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> A-JCC doesn't support side signals and is limited to 5.1 channel audio while A-CPL does support side signals.<sup id="cite_ref-DolbyAC4ServicesJune2015Dolby_1-7" class="reference"><a href="#cite_note-DolbyAC4ServicesJune2015Dolby-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Dolby AC-4 supports up to 7 audio objects with a core decoder and can optionally support additional audio objects with a more advanced decoder.<sup id="cite_ref-DolbyAC4ServicesJune2015Dolby_1-8" class="reference"><a href="#cite_note-DolbyAC4ServicesJune2015Dolby-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> The use of different decoders allows Dolby AC-4 to support lower cost devices while also allowing for more advanced decoders for <a href="/wiki/AV_receiver" title="AV receiver">AV receivers</a>.<sup id="cite_ref-DolbyAC4ServicesJune2015Dolby_1-9" class="reference"><a href="#cite_note-DolbyAC4ServicesJune2015Dolby-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>AC-4 uses an improved <a href="/wiki/Modified_discrete_cosine_transform" title="Modified discrete cosine transform">modified discrete cosine transform</a> (MDCT) <a href="/wiki/Audio_coding" class="mw-redirect" title="Audio coding">audio coding</a> algorithm.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> Dolby states that Dolby AC-4 provides a 50% reduction in bit rate over <a href="/wiki/Dolby_Digital_Plus" title="Dolby Digital Plus">Dolby Digital Plus</a>.<sup id="cite_ref-DolbyAC4ServicesJune2015Dolby_1-10" class="reference"><a href="#cite_note-DolbyAC4ServicesJune2015Dolby-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> When Dolby AC-4 was tested by the DVB the <a href="/wiki/MUSHRA" title="MUSHRA">Multiple Stimuli with Hidden Reference and Anchor test (MUSHRA)</a> score was 90 at 192 kbit/s for 5.1 channel audio.<sup id="cite_ref-DolbyAC4ServicesJune2015Dolby_1-11" class="reference"><a href="#cite_note-DolbyAC4ServicesJune2015Dolby-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> When tested for ATSC 3.0 the bit rates needed for the required audio score was 96 kbit/s for stereo audio, 192 kbit/s for 5.1 channel audio, and 288 kbit/s for 7.1.4 channel audio.<sup id="cite_ref-DolbyAC4ServicesJune2015Dolby_1-12" class="reference"><a href="#cite_note-DolbyAC4ServicesJune2015Dolby-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> However, for 22.2 channel audio, the required bit rate may be as high as 1536 kbit/s.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p><p>Dolby AC-4 is extensible and audio substreams allow for new features to be added to Dolby AC-4 while maintaining compatibility with older decoders.<sup id="cite_ref-DolbyAC4ServicesJune2015Dolby_1-13" class="reference"><a href="#cite_note-DolbyAC4ServicesJune2015Dolby-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Patent_licensing">Patent licensing</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Dolby_AC-4&action=edit&section=3" title="Edit section: Patent licensing"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Dolby AC-4 is covered by patents and requires a license from Dolby Laboratories.<sup id="cite_ref-DolbyAC4RoyaltySeptember2015Dolby_8-0" class="reference"><a href="#cite_note-DolbyAC4RoyaltySeptember2015Dolby-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> Dolby AC-4 has a consumer royalty rate of US$0.15 to US$1.20 depending on the type of device and volume of sales.<sup id="cite_ref-DolbyAC4RoyaltySeptember2015Dolby_8-1" class="reference"><a href="#cite_note-DolbyAC4RoyaltySeptember2015Dolby-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> Dolby only charges for one technology per device, which means that Dolby AC-4 effectively costs nothing in devices that include existing Dolby technologies such as Dolby Digital Plus.<sup id="cite_ref-DolbyAC4RoyaltySeptember2015Dolby_8-2" class="reference"><a href="#cite_note-DolbyAC4RoyaltySeptember2015Dolby-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> The professional royalty rate is up to US$50 for an eight channel transcoder.<sup id="cite_ref-DolbyAC4RoyaltySeptember2015Dolby_8-3" class="reference"><a href="#cite_note-DolbyAC4RoyaltySeptember2015Dolby-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Dolby_AC-4&action=edit&section=4" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Dolby_Laboratories" class="mw-redirect" title="Dolby Laboratories">Dolby Laboratories</a></li> <li><a href="/wiki/MPEG-H_3D_Audio" title="MPEG-H 3D Audio">MPEG-H 3D Audio</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Dolby_AC-4&action=edit&section=5" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-DolbyAC4ServicesJune2015Dolby-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-DolbyAC4ServicesJune2015Dolby_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-DolbyAC4ServicesJune2015Dolby_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-DolbyAC4ServicesJune2015Dolby_1-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-DolbyAC4ServicesJune2015Dolby_1-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-DolbyAC4ServicesJune2015Dolby_1-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-DolbyAC4ServicesJune2015Dolby_1-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-DolbyAC4ServicesJune2015Dolby_1-6"><sup><i><b>g</b></i></sup></a> <a href="#cite_ref-DolbyAC4ServicesJune2015Dolby_1-7"><sup><i><b>h</b></i></sup></a> <a href="#cite_ref-DolbyAC4ServicesJune2015Dolby_1-8"><sup><i><b>i</b></i></sup></a> <a href="#cite_ref-DolbyAC4ServicesJune2015Dolby_1-9"><sup><i><b>j</b></i></sup></a> <a href="#cite_ref-DolbyAC4ServicesJune2015Dolby_1-10"><sup><i><b>k</b></i></sup></a> <a href="#cite_ref-DolbyAC4ServicesJune2015Dolby_1-11"><sup><i><b>l</b></i></sup></a> <a href="#cite_ref-DolbyAC4ServicesJune2015Dolby_1-12"><sup><i><b>m</b></i></sup></a> <a href="#cite_ref-DolbyAC4ServicesJune2015Dolby_1-13"><sup><i><b>n</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation news cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20151204095813/http://www.dolby.com/in/en/technologies/ac-4/Next-Generation-Entertainment-Services.pdf">"Dolby AC-4: Audio Delivery for Next-Generation Entertainment Services"</a> <span class="cs1-format">(PDF)</span>. <a href="/wiki/Dolby_Laboratories" class="mw-redirect" title="Dolby Laboratories">Dolby Laboratories</a>. 2015-06-01. Archived from <a rel="nofollow" class="external text" href="https://www.dolby.com/in/en/technologies/ac-4/Next-Generation-Entertainment-Services.pdf">the original</a> <span class="cs1-format">(PDF)</span> on 2015-12-04<span class="reference-accessdate">. Retrieved <span class="nowrap">2016-04-26</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Dolby+AC-4%3A+Audio+Delivery+for+Next-Generation+Entertainment+Services&rft.date=2015-06-01&rft_id=https%3A%2F%2Fwww.dolby.com%2Fin%2Fen%2Ftechnologies%2Fac-4%2FNext-Generation-Entertainment-Services.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3ADolby+AC-4" class="Z3988"></span></span> </li> <li id="cite_note-DolbyPlansAudioSeptember2015Forbes-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-DolbyPlansAudioSeptember2015Forbes_2-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFJohn_Archer2015" class="citation news cs1">John Archer (2015-09-14). <a rel="nofollow" class="external text" href="https://www.forbes.com/sites/johnarcher/2015/09/14/how-dolby-plans-to-revolutionise-the-sound-on-your-tablet-smartphone-and-tv/">"How Dolby Plans To Revolutionize The Sound On Your Tablet, Smartphone And TV"</a>. <i><a href="/wiki/Forbes" title="Forbes">Forbes</a></i><span class="reference-accessdate">. Retrieved <span class="nowrap">2016-04-26</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Forbes&rft.atitle=How+Dolby+Plans+To+Revolutionize+The+Sound+On+Your+Tablet%2C+Smartphone+And+TV&rft.date=2015-09-14&rft.au=John+Archer&rft_id=https%3A%2F%2Fwww.forbes.com%2Fsites%2Fjohnarcher%2F2015%2F09%2F14%2Fhow-dolby-plans-to-revolutionise-the-sound-on-your-tablet-smartphone-and-tv%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ADolby+AC-4" class="Z3988"></span></span> </li> <li id="cite_note-ATSCAudioMarch2015-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-ATSCAudioMarch2015_3-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation news cs1"><a rel="nofollow" class="external text" href="http://atsc.org/news-release/advanced-television-systems-committee-begins-review-of-atsc-3-0-audio-system-proposals/">"Advanced Television Systems Committee Begins Review of ATSC 3.0 Audio System Proposals"</a>. <a href="/wiki/Advanced_Television_Systems_Committee" title="Advanced Television Systems Committee">Advanced Television Systems Committee</a>. 2015-03-10<span class="reference-accessdate">. Retrieved <span class="nowrap">2016-04-26</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Advanced+Television+Systems+Committee+Begins+Review+of+ATSC+3.0+Audio+System+Proposals&rft.date=2015-03-10&rft_id=http%3A%2F%2Fatsc.org%2Fnews-release%2Fadvanced-television-systems-committee-begins-review-of-atsc-3-0-audio-system-proposals%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ADolby+AC-4" class="Z3988"></span></span> </li> <li id="cite_note-SonyVizioDolbyAC42015Businesswire-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-SonyVizioDolbyAC42015Businesswire_4-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation news cs1"><a rel="nofollow" class="external text" href="http://www.businesswire.com/news/home/20150714005842/en/VIZIO-Sony-Visual-Products-Adopt-Dolby-AC-4/">"VIZIO and Sony Visual Products Adopt Dolby AC-4"</a>. <a href="/wiki/Business_Wire" title="Business Wire">Business Wire</a>. 2015-07-14<span class="reference-accessdate">. Retrieved <span class="nowrap">2016-04-26</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=VIZIO+and+Sony+Visual+Products+Adopt+Dolby+AC-4&rft.date=2015-07-14&rft_id=http%3A%2F%2Fwww.businesswire.com%2Fnews%2Fhome%2F20150714005842%2Fen%2FVIZIO-Sony-Visual-Products-Adopt-Dolby-AC-4%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ADolby+AC-4" class="Z3988"></span></span> </li> <li id="cite_note-DolbyAC4SamsungApril2016Businesswire-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-DolbyAC4SamsungApril2016Businesswire_5-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation news cs1"><a rel="nofollow" class="external text" href="http://www.businesswire.com/news/home/20160414005430/en/Dolby-Announces-Samsung-Commitment-Bring-Dolby-AC-4">"Dolby Announces Samsung Commitment to Bring Dolby AC-4 Enabled Televisions to Market"</a>. Business Wire. 2016-04-14<span class="reference-accessdate">. Retrieved <span class="nowrap">2016-04-26</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Dolby+Announces+Samsung+Commitment+to+Bring+Dolby+AC-4+Enabled+Televisions+to+Market&rft.date=2016-04-14&rft_id=http%3A%2F%2Fwww.businesswire.com%2Fnews%2Fhome%2F20160414005430%2Fen%2FDolby-Announces-Samsung-Commitment-Bring-Dolby-AC-4&rfr_id=info%3Asid%2Fen.wikipedia.org%3ADolby+AC-4" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20190530051301/https://www.dolby.com/us/en/technologies/ac-4/Next-Generation-Entertainment-Services.pdf">"Dolby AC-4: Audio Delivery for Next-Generation Entertainment Services"</a> <span class="cs1-format">(PDF)</span>. <i><a href="/wiki/Dolby_Laboratories" class="mw-redirect" title="Dolby Laboratories">Dolby Laboratories</a></i>. June 2015. Archived from <a rel="nofollow" class="external text" href="https://www.dolby.com/us/en/technologies/ac-4/Next-Generation-Entertainment-Services.pdf">the original</a> <span class="cs1-format">(PDF)</span> on 30 May 2019<span class="reference-accessdate">. Retrieved <span class="nowrap">11 November</span> 2019</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Dolby+Laboratories&rft.atitle=Dolby+AC-4%3A+Audio+Delivery+for+Next-Generation+Entertainment+Services&rft.date=2015-06&rft_id=https%3A%2F%2Fwww.dolby.com%2Fus%2Fen%2Ftechnologies%2Fac-4%2FNext-Generation-Entertainment-Services.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3ADolby+AC-4" class="Z3988"></span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external free" href="https://www.itu.int/dms_pubrec/itu-r/rec/bs/R-REC-BS.1196-7-201901-S!!PDF-E.pdf">https://www.itu.int/dms_pubrec/itu-r/rec/bs/R-REC-BS.1196-7-201901-S!!PDF-E.pdf</a> <sup class="noprint Inline-Template" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Bare_URLs" title="Wikipedia:Bare URLs"><span title="A full citation of this PDF document is required to prevent link rot. (March 2022)">bare URL PDF</span></a></i>]</sup></span> </li> <li id="cite_note-DolbyAC4RoyaltySeptember2015Dolby-8"><span class="mw-cite-backlink">^ <a href="#cite_ref-DolbyAC4RoyaltySeptember2015Dolby_8-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-DolbyAC4RoyaltySeptember2015Dolby_8-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-DolbyAC4RoyaltySeptember2015Dolby_8-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-DolbyAC4RoyaltySeptember2015Dolby_8-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFGiles_Baker2018" class="citation news cs1">Giles Baker (2018-04-11). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20180914203227/https://hub.dolby.com/setting-record-straight-dolby-ac4-mpegh/">"Setting the record straight on Dolby AC-4 and MPEG-H"</a>. Dolby Laboratories. Archived from <a rel="nofollow" class="external text" href="https://hub.dolby.com/setting-record-straight-dolby-ac4-mpegh/">the original</a> on 2018-09-14<span class="reference-accessdate">. Retrieved <span class="nowrap">2019-11-05</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Setting+the+record+straight+on+Dolby+AC-4+and+MPEG-H&rft.date=2018-04-11&rft.au=Giles+Baker&rft_id=https%3A%2F%2Fhub.dolby.com%2Fsetting-record-straight-dolby-ac4-mpegh%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ADolby+AC-4" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Dolby_AC-4&action=edit&section=6" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><span class="official-website"><span class="url"><a rel="nofollow" class="external text" href="https://www.dolby.com/us/en/technologies/AC-4.html">Official website</a></span></span></li></ul> <div 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abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Dolby_Laboratories" title="Template:Dolby Laboratories"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Dolby_Laboratories" title="Template talk:Dolby Laboratories"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Dolby_Laboratories" title="Special:EditPage/Template:Dolby Laboratories"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Dolby_Laboratories79" style="font-size:114%;margin:0 4em"><a href="/wiki/Dolby" title="Dolby">Dolby Laboratories</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Technologies and products</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Dolby_Atmos" title="Dolby Atmos">Dolby Atmos</a></li> <li><a href="/wiki/Dialnorm" title="Dialnorm">Dialnorm</a></li> <li><a href="/wiki/Dolby_3D" title="Dolby 3D">Dolby 3D</a></li> <li><a href="/wiki/Dolby_Cinema" title="Dolby Cinema">Dolby Cinema</a></li> <li><a href="/wiki/Dolby_Digital" title="Dolby Digital">Dolby Digital</a></li> <li><a href="/wiki/Dolby_Digital_Plus" title="Dolby Digital Plus">Dolby Digital Plus</a></li> <li><a href="/wiki/Dolby_E" title="Dolby E">Dolby E</a></li> <li><a href="/wiki/Dolby_Headphone" title="Dolby Headphone">Dolby Headphone</a></li> <li><a href="/wiki/Dolby_noise-reduction_system" title="Dolby noise-reduction system">Dolby noise-reduction system</a></li> <li><a href="/wiki/Dolby_Pro_Logic" title="Dolby Pro Logic">Dolby Surround/Pro Logic/Pro Logic II</a></li> <li><a href="/wiki/Dolby_SR" title="Dolby SR">Dolby SR</a></li> <li><a href="/wiki/Dolby_Stereo" title="Dolby Stereo">Dolby Stereo</a></li> <li><a href="/wiki/Dolby_Surround_7.1" title="Dolby Surround 7.1">Dolby Surround 7.1</a></li> <li><a href="/wiki/Dolby_TrueHD" title="Dolby TrueHD">Dolby TrueHD</a></li> <li><a href="/wiki/Dolby_Vision" title="Dolby Vision">Dolby Vision</a></li> <li><a href="/wiki/Dolby_Voice" title="Dolby Voice">Dolby Voice</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Doremi_Labs" title="Doremi Labs">Doremi Labs</a></th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/CineAsset" title="CineAsset">CineAsset</a></li> <li><a href="/wiki/CineExport" title="CineExport">CineExport</a></li> <li><a href="/wiki/CinePlayer" title="CinePlayer">CinePlayer</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">People</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ray_Dolby" title="Ray Dolby">Ray Dolby</a></li> <li><a href="/wiki/Thomas_Dolby#Stage_name" title="Thomas Dolby">Thomas Dolby</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Dolby_Theatre" title="Dolby Theatre">Dolby Theatre</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374" /><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235" /></div><div role="navigation" class="navbox" aria-labelledby="Multimedia_compression_and_container_formats462" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374" /><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231" /><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Compression_formats" title="Template:Compression formats"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Compression_formats" title="Template talk:Compression formats"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Compression_formats" title="Special:EditPage/Template:Compression formats"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Multimedia_compression_and_container_formats462" style="font-size:114%;margin:0 4em"><a href="/wiki/Multimedia" title="Multimedia">Multimedia</a> <a href="/wiki/Data_compression" title="Data compression">compression</a> and <a href="/wiki/Container_format_(computing)" class="mw-redirect" title="Container format (computing)">container</a> formats</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Video_coding_format" title="Video coding format">Video<br />compression</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/International_Organization_for_Standardization" title="International Organization for Standardization">ISO</a>, <a href="/wiki/International_Electrotechnical_Commission" title="International Electrotechnical Commission">IEC</a>, <br /><a href="/wiki/Moving_Picture_Experts_Group" title="Moving Picture Experts Group">MPEG</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/DV_(video_format)" title="DV (video format)">DV</a></li> <li><a href="/wiki/Motion_JPEG" title="Motion JPEG">MJPEG</a></li> <li><a href="/wiki/Motion_JPEG_2000" title="Motion JPEG 2000">Motion JPEG 2000</a></li> <li><a href="/wiki/MPEG-1" title="MPEG-1">MPEG-1</a></li> <li><a href="/wiki/MPEG-2" title="MPEG-2">MPEG-2</a> <ul><li><a href="/wiki/H.262/MPEG-2_Part_2" title="H.262/MPEG-2 Part 2">Part 2</a></li></ul></li> <li><a href="/wiki/MPEG-4" title="MPEG-4">MPEG-4</a> <ul><li><a href="/wiki/MPEG-4_Part_2" title="MPEG-4 Part 2">Part 2 / ASP</a></li> <li><a href="/wiki/H.264/MPEG-4_AVC" class="mw-redirect" title="H.264/MPEG-4 AVC">Part 10 / AVC</a></li> <li><a href="/wiki/MPEG-4_IVC" class="mw-redirect" title="MPEG-4 IVC">Part 33 / IVC</a></li></ul></li> <li><a href="/wiki/MPEG-H" title="MPEG-H">MPEG-H</a> <ul><li><a href="/wiki/High_Efficiency_Video_Coding" title="High Efficiency Video Coding">Part 2 / HEVC</a></li></ul></li> <li><a href="/w/index.php?title=MPEG-I&action=edit&redlink=1" class="new" title="MPEG-I (page does not exist)">MPEG-I</a> <ul><li><a href="/wiki/Versatile_Video_Coding" title="Versatile Video Coding">Part 3 / VVC</a></li></ul></li> <li><a href="/wiki/MPEG-5" class="mw-redirect" title="MPEG-5">MPEG-5</a> <ul><li><a href="/wiki/Essential_Video_Coding" title="Essential Video Coding">Part 1 / EVC</a></li> <li><a href="/wiki/LCEVC" title="LCEVC">Part 2 / LCEVC</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/ITU-T" title="ITU-T">ITU-T</a>, <a href="/wiki/Video_Coding_Experts_Group" title="Video Coding Experts Group">VCEG</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/H.120" title="H.120">H.120</a></li> <li><a href="/wiki/H.261" title="H.261">H.261</a></li> <li><a href="/wiki/H.262/MPEG-2_Part_2" title="H.262/MPEG-2 Part 2">H.262</a></li> <li><a href="/wiki/H.263" title="H.263">H.263</a></li> <li><a href="/wiki/Advanced_Video_Coding" title="Advanced Video Coding">H.264 / AVC</a></li> <li><a href="/wiki/High_Efficiency_Video_Coding" title="High Efficiency Video Coding">H.265 / HEVC</a></li> <li><a href="/wiki/Versatile_Video_Coding" title="Versatile Video Coding">H.266 / VVC</a></li> <li><a href="/w/index.php?title=H.267&action=edit&redlink=1" class="new" title="H.267 (page does not exist)">H.267 / Enhanced Coding Model</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/Society_of_Motion_Picture_and_Television_Engineers" title="Society of Motion Picture and Television Engineers">SMPTE</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/VC-1" title="VC-1">VC-1</a></li> <li><a href="/wiki/Dirac_(video_compression_format)" title="Dirac (video compression format)">VC-2</a></li> <li><a href="/wiki/Avid_DNxHD" title="Avid DNxHD">VC-3</a></li> <li><a href="/wiki/CineForm" title="CineForm">VC-5</a></li> <li><a href="/wiki/VC-6" title="VC-6">VC-6</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/On2_Technologies" title="On2 Technologies">TrueMotion</a> and AOMedia</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/On2_Technologies#TrueMotion_S" title="On2 Technologies">TrueMotion S</a></li> <li><a href="/wiki/VP3" title="VP3">VP3</a></li> <li><a href="/wiki/VP6" title="VP6">VP6</a></li> <li><a href="/wiki/VP7" class="mw-redirect" title="VP7">VP7</a></li> <li><a href="/wiki/VP8" title="VP8">VP8</a></li> <li><a href="/wiki/VP9" title="VP9">VP9</a></li> <li><a href="/wiki/AV1" title="AV1">AV1</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">Chinese Standard</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Audio_Video_Standard#First_generation" title="Audio Video Standard">AVS1 P2/AVS+</a>(GB/T 20090.2/16)</li> <li><a href="/wiki/Audio_Video_Standard#Second_generation" title="Audio Video Standard">AVS2 P2</a>(GB/T 33475.2,GY/T 299.1) <ul><li>HDR Vivid(GY/T 358)</li></ul></li> <li>AVS3 P2(GY/T 368)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">Others</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Apple_Video" title="Apple Video">Apple Video</a></li> <li><a href="/wiki/Audio_Video_Standard" title="Audio Video Standard">AVS</a></li> <li><a href="/wiki/Bink_Video" title="Bink Video">Bink</a></li> <li><a href="/wiki/Cinepak" title="Cinepak">Cinepak</a></li> <li><a href="/wiki/Daala" title="Daala">Daala</a></li> <li><a href="/wiki/Digital_Video_Interactive" title="Digital Video Interactive">DVI</a></li> <li><a href="/wiki/FFV1" title="FFV1">FFV1</a></li> <li><a href="/wiki/Huffyuv" title="Huffyuv">Huffyuv</a></li> <li><a href="/wiki/Indeo" title="Indeo">Indeo</a></li> <li><a href="/wiki/Lagarith" title="Lagarith">Lagarith</a></li> <li><a href="/wiki/Microsoft_Video_1" title="Microsoft Video 1">Microsoft Video 1</a></li> <li><a href="/wiki/MSU_Lossless_Video_Codec" title="MSU Lossless Video Codec">MSU Lossless</a></li> <li><a href="/wiki/OMS_Video" title="OMS Video">OMS Video</a></li> <li><a href="/wiki/Pixlet" title="Pixlet">Pixlet</a></li> <li><a href="/wiki/Apple_ProRes" title="Apple ProRes">ProRes</a> <ul><li><a href="/wiki/ProRes_422" class="mw-redirect" title="ProRes 422">422</a></li> <li><a href="/wiki/ProRes_4444" class="mw-redirect" title="ProRes 4444">4444</a></li></ul></li> <li>QuickTime <ul><li><a href="/wiki/QuickTime_Animation" title="QuickTime Animation">Animation</a></li> <li><a href="/wiki/QuickTime_Graphics" title="QuickTime Graphics">Graphics</a></li></ul></li> <li><a href="/wiki/RealVideo" title="RealVideo">RealVideo</a></li> <li><a href="/wiki/RTVideo" title="RTVideo">RTVideo</a></li> <li><a href="/wiki/SheerVideo" title="SheerVideo">SheerVideo</a></li> <li><a href="/wiki/Smacker_video" title="Smacker video">Smacker</a></li> <li><a href="/wiki/Sorenson_Media" title="Sorenson Media">Sorenson Video/Spark</a></li> <li><a href="/wiki/Theora" title="Theora">Theora</a></li> <li><a href="/wiki/Thor_(video_codec)" title="Thor (video codec)">Thor</a></li> <li><a href="/wiki/Ut_Video_Codec_Suite" title="Ut Video Codec Suite">Ut</a></li> <li><a href="/wiki/Windows_Media_Video" title="Windows Media Video">WMV</a></li> <li><a href="/wiki/RatDVD" title="RatDVD">XEB</a></li> <li><a href="/wiki/YULS" title="YULS">YULS</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Audio_coding_format" title="Audio coding format">Audio<br />compression</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/International_Organization_for_Standardization" title="International Organization for Standardization">ISO</a>, <a href="/wiki/International_Electrotechnical_Commission" title="International Electrotechnical Commission">IEC</a>,<br /> <a href="/wiki/Moving_Picture_Experts_Group" title="Moving Picture Experts Group">MPEG</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/MPEG-1_Audio_Layer_II" title="MPEG-1 Audio Layer II">MPEG-1 Layer II</a> <ul><li><a href="/wiki/MPEG_Multichannel" title="MPEG Multichannel">Multichannel</a></li></ul></li> <li><a href="/wiki/MPEG-1_Audio_Layer_I" title="MPEG-1 Audio Layer I">MPEG-1 Layer I</a></li> <li><a href="/wiki/MP3" title="MP3">MPEG-1 Layer III (MP3)</a></li> <li><a href="/wiki/Advanced_Audio_Coding" title="Advanced Audio Coding">AAC</a> <ul><li><a href="/wiki/High-Efficiency_Advanced_Audio_Coding" title="High-Efficiency Advanced Audio Coding">HE-AAC</a></li> <li><a href="/wiki/AAC-LD" title="AAC-LD">AAC-LD</a></li></ul></li> <li><a href="/wiki/MPEG_Surround" title="MPEG Surround">MPEG Surround</a></li> <li><a href="/wiki/Audio_Lossless_Coding" title="Audio Lossless Coding">MPEG-4 ALS</a></li> <li><a href="/wiki/MPEG-4_SLS" title="MPEG-4 SLS">MPEG-4 SLS</a></li> <li><a href="/wiki/Super_Audio_CD#DST" title="Super Audio CD">MPEG-4 DST</a></li> <li><a href="/wiki/Harmonic_Vector_Excitation_Coding" title="Harmonic Vector Excitation Coding">MPEG-4 HVXC</a></li> <li><a href="/wiki/Code-excited_linear_prediction" title="Code-excited linear prediction">MPEG-4 CELP</a></li> <li><a href="/wiki/Unified_Speech_and_Audio_Coding" title="Unified Speech and Audio Coding">MPEG-D USAC</a></li> <li><a href="/wiki/MPEG-H_3D_Audio" title="MPEG-H 3D Audio">MPEG-H 3D Audio</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/ITU-T" title="ITU-T">ITU-T</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/G.711" title="G.711">G.711</a> <ul><li><a href="/wiki/A-law_algorithm" title="A-law algorithm">A-law</a></li> <li><a href="/wiki/%CE%9C-law_algorithm" title="Μ-law algorithm">µ-law</a></li></ul></li> <li><a href="/wiki/G.718" title="G.718">G.718</a></li> <li><a href="/wiki/G.719" title="G.719">G.719</a></li> <li><a href="/wiki/G.722" title="G.722">G.722</a></li> <li><a href="/wiki/G.722.1" title="G.722.1">G.722.1</a></li> <li><a href="/wiki/Adaptive_Multi-Rate_Wideband" title="Adaptive Multi-Rate Wideband">G.722.2</a></li> <li><a href="/wiki/G.723" title="G.723">G.723</a></li> <li><a href="/wiki/G.723.1" title="G.723.1">G.723.1</a></li> <li><a href="/wiki/G.726" title="G.726">G.726</a></li> <li><a href="/wiki/G.728" title="G.728">G.728</a></li> <li><a href="/wiki/G.729" title="G.729">G.729</a></li> <li><a href="/wiki/G.729.1" title="G.729.1">G.729.1</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/Internet_Engineering_Task_Force" title="Internet Engineering Task Force">IETF</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Opus_(audio_format)" title="Opus (audio format)">Opus</a></li> <li><a href="/wiki/Internet_Low_Bitrate_Codec" title="Internet Low Bitrate Codec">iLBC</a></li> <li><a href="/wiki/Speex" title="Speex">Speex</a></li> <li><a href="/wiki/Vorbis" title="Vorbis">Vorbis</a></li> <li><a href="/wiki/FLAC" title="FLAC">FLAC</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/3GPP" title="3GPP">3GPP</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Adaptive_Multi-Rate_audio_codec" title="Adaptive Multi-Rate audio codec">AMR</a></li> <li><a href="/wiki/Adaptive_Multi-Rate_Wideband" title="Adaptive Multi-Rate Wideband">AMR-WB</a></li> <li><a href="/wiki/Extended_Adaptive_Multi-Rate_%E2%80%93_Wideband" title="Extended Adaptive Multi-Rate – Wideband">AMR-WB+</a></li> <li><a href="/wiki/Enhanced_Variable_Rate_Codec" title="Enhanced Variable Rate Codec">EVRC</a></li> <li><a href="/wiki/Enhanced_Variable_Rate_Codec_B" title="Enhanced Variable Rate Codec B">EVRC-B</a></li> <li><a href="/wiki/Enhanced_Voice_Services" title="Enhanced Voice Services">EVS</a></li> <li><a href="/wiki/Half_Rate" title="Half Rate">GSM-HR</a></li> <li><a href="/wiki/Full_Rate" title="Full Rate">GSM-FR</a></li> <li><a href="/wiki/Enhanced_full_rate" title="Enhanced full rate">GSM-EFR</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/ETSI" class="mw-redirect" title="ETSI">ETSI</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Dolby_Digital" title="Dolby Digital">AC-3</a></li> <li><a class="mw-selflink selflink">AC-4</a></li> <li><a href="/wiki/DTS_(sound_system)" class="mw-redirect" title="DTS (sound system)">DTS</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/Bluetooth_Special_Interest_Group" title="Bluetooth Special Interest Group">Bluetooth SIG</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/SBC_(codec)" title="SBC (codec)">SBC</a></li> <li><a href="/wiki/LC3_(codec)" title="LC3 (codec)">LC3</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">Chinese Standard</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Audio_Video_Standard#First_generation" title="Audio Video Standard">AVS1 P10</a>(GB/T 20090.10)</li> <li><a href="/wiki/Audio_Video_Standard#Second_generation" title="Audio Video Standard">AVS2 P3</a>(GB/T 33475.3) <ul><li><a href="/w/index.php?title=Audio_Vivid&action=edit&redlink=1" class="new" title="Audio Vivid (page does not exist)">Audio Vivid</a>(GY/T 363)</li></ul></li> <li><a href="/wiki/Dynamic_Resolution_Adaptation" title="Dynamic Resolution Adaptation">DRA</a>(GB/T 22726)</li> <li>ExAC(SJ/T 11299.4)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">Others</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Algebraic_code-excited_linear_prediction" title="Algebraic code-excited linear prediction">ACELP</a></li> <li><a href="/wiki/Apple_Lossless_Audio_Codec" title="Apple Lossless Audio Codec">ALAC</a></li> <li><a href="/wiki/Asao_(codec)" title="Asao (codec)">Asao</a></li> <li><a href="/wiki/Adaptive_Transform_Acoustic_Coding" class="mw-redirect" title="Adaptive Transform Acoustic Coding">ATRAC</a></li> <li><a href="/wiki/CELT" title="CELT">CELT</a></li> <li><a href="/wiki/Codec_2" title="Codec 2">Codec 2</a></li> <li><a href="/wiki/Internet_Speech_Audio_Codec" title="Internet Speech Audio Codec">iSAC</a></li> <li><a href="/wiki/Lyra_(codec)" title="Lyra (codec)">Lyra</a></li> <li><a href="/wiki/Mixed-excitation_linear_prediction" title="Mixed-excitation linear prediction">MELP</a></li> <li><a href="/wiki/Monkey%27s_Audio" title="Monkey's Audio">Monkey's Audio</a></li> <li><a href="/wiki/MT9" title="MT9">MT9</a></li> <li><a href="/wiki/Musepack" title="Musepack">Musepack</a></li> <li><a href="/wiki/OptimFROG" title="OptimFROG">OptimFROG</a></li> <li><a href="/wiki/Original_Sound_Quality" title="Original Sound Quality">OSQ</a></li> <li><a href="/wiki/Qualcomm_code-excited_linear_prediction" title="Qualcomm code-excited linear prediction">QCELP</a></li> <li><a href="/wiki/Relaxed_code-excited_linear_prediction" title="Relaxed code-excited linear prediction">RCELP</a></li> <li><a href="/wiki/RealAudio" title="RealAudio">RealAudio</a></li> <li><a href="/wiki/Avid_Audio#Sound_Designer_file_formats" title="Avid Audio">SD2</a></li> <li><a href="/wiki/Shorten_file_format" class="mw-redirect" title="Shorten file format">SHN</a></li> <li><a href="/wiki/SILK" title="SILK">SILK</a></li> <li><a href="/wiki/Siren_(codec)" title="Siren (codec)">Siren</a></li> <li><a href="/wiki/Selectable_Mode_Vocoder" title="Selectable Mode Vocoder">SMV</a></li> <li><a href="/wiki/SVOPC" title="SVOPC">SVOPC</a></li> <li>TTA <ul><li>True Audio</li></ul></li> <li><a href="/wiki/TwinVQ" title="TwinVQ">TwinVQ</a></li> <li><a href="/wiki/Variable-Rate_Multimode_Wideband" title="Variable-Rate Multimode Wideband">VMR-WB</a></li> <li><a href="/wiki/Vector_sum_excited_linear_prediction" title="Vector sum excited linear prediction">VSELP</a></li> <li><a href="/wiki/WavPack" title="WavPack">WavPack</a></li> <li><a href="/wiki/Windows_Media_Audio" title="Windows Media Audio">WMA</a></li> <li><a href="/wiki/Master_Quality_Authenticated" title="Master Quality Authenticated">MQA</a></li> <li><a href="/wiki/AptX" title="AptX">aptX</a></li> <li><a href="/wiki/AptX#aptX_HD" title="AptX">aptX HD</a></li> <li><a href="/wiki/AptX#aptX_Low_Latency" title="AptX">aptX Low Latency</a></li> <li><a href="/wiki/AptX#aptX_Adaptive" title="AptX">aptX Adaptive</a></li> <li><a href="/wiki/LDAC_(codec)" title="LDAC (codec)">LDAC</a></li> <li><a href="/wiki/LHDC_(codec)" title="LHDC (codec)">LHDC</a></li> <li><a href="/wiki/LHDC_(codec)#LLAC" title="LHDC (codec)">LLAC</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Image_compression" title="Image compression">Image<br />compression</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/International_Electrotechnical_Commission" title="International Electrotechnical Commission">IEC</a>, <a href="/wiki/International_Organization_for_Standardization" title="International Organization for Standardization">ISO</a>, <a href="/wiki/Internet_Engineering_Task_Force" title="Internet Engineering Task Force">IETF</a>, <br /><a href="/wiki/World_Wide_Web_Consortium" title="World Wide Web Consortium">W3C</a>, <a href="/wiki/ITU-T" title="ITU-T">ITU-T</a>, <a href="/wiki/Joint_Photographic_Experts_Group" title="Joint Photographic Experts Group">JPEG</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Group_4_compression" title="Group 4 compression">CCITT Group 4</a></li> <li><a href="/wiki/GIF" title="GIF">GIF</a></li> <li><a href="/wiki/High_Efficiency_Image_File_Format#HEIC:_HEVC_in_HEIF" title="High Efficiency Image File Format">HEIC / HEIF</a></li> <li><a href="/wiki/High_Efficiency_Video_Coding#Main_Still_Picture" title="High Efficiency Video Coding">HEVC</a></li> <li><a href="/wiki/JBIG" title="JBIG">JBIG</a></li> <li><a href="/wiki/JBIG2" title="JBIG2">JBIG2</a></li> <li><a href="/wiki/JPEG" title="JPEG">JPEG</a></li> <li><a href="/wiki/JPEG_2000" title="JPEG 2000">JPEG 2000</a></li> <li><a href="/wiki/JPEG-LS" class="mw-redirect" title="JPEG-LS">JPEG-LS</a></li> <li><a href="/wiki/JPEG_XL" title="JPEG XL">JPEG XL</a></li> <li><a href="/wiki/JPEG_XR" title="JPEG XR">JPEG XR</a></li> <li><a href="/wiki/JPEG_XS" title="JPEG XS">JPEG XS</a></li> <li><a href="/wiki/JPEG_XT" title="JPEG XT">JPEG XT</a></li> <li><a href="/wiki/Portable_Network_Graphics" class="mw-redirect" title="Portable Network Graphics">PNG</a></li> <li><a href="/wiki/TIFF" title="TIFF">TIFF</a></li> <li><a href="/wiki/TIFF/EP" title="TIFF/EP">TIFF/EP</a></li> <li><a href="/wiki/TIFF/IT" class="mw-redirect" title="TIFF/IT">TIFF/IT</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">Others</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/APNG" title="APNG">APNG</a></li> <li><a href="/wiki/AV1" title="AV1">AV1</a></li> <li><a href="/wiki/AVIF" title="AVIF">AVIF</a></li> <li><a href="/wiki/Better_Portable_Graphics" title="Better Portable Graphics">BPG</a></li> <li><a href="/wiki/DjVu" title="DjVu">DjVu</a></li> <li><a href="/wiki/OpenEXR" title="OpenEXR">EXR</a></li> <li><a href="/wiki/Free_Lossless_Image_Format" title="Free Lossless Image Format">FLIF</a></li> <li><a href="/wiki/ICER_(file_format)" title="ICER (file format)">ICER</a></li> <li><a href="/wiki/Multiple-image_Network_Graphics" title="Multiple-image Network Graphics">MNG</a></li> <li><a href="/wiki/Progressive_Graphics_File" title="Progressive Graphics File">PGF</a></li> <li><a href="/wiki/QOI_(image_format)" title="QOI (image format)">QOI</a></li> <li><a href="/wiki/QuickTime_VR" title="QuickTime VR">QTVR</a></li> <li><a href="/wiki/Wireless_Application_Protocol_Bitmap_Format" title="Wireless Application Protocol Bitmap Format">WBMP</a></li> <li><a href="/wiki/WebP" title="WebP">WebP</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Digital_container_format" class="mw-redirect" title="Digital container format">Containers</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/International_Organization_for_Standardization" title="International Organization for Standardization">ISO</a>, <a href="/wiki/International_Electrotechnical_Commission" title="International Electrotechnical Commission">IEC</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/MPEG_elementary_stream" title="MPEG elementary stream">MPEG-ES</a> <ul><li><a href="/wiki/Packetized_elementary_stream" title="Packetized elementary stream">MPEG-PES</a></li></ul></li> <li><a href="/wiki/MPEG_program_stream" title="MPEG program stream">MPEG-PS</a></li> <li><a href="/wiki/MPEG_transport_stream" title="MPEG transport stream">MPEG-TS</a></li> <li><a href="/wiki/ISO/IEC_base_media_file_format" class="mw-redirect" title="ISO/IEC base media file format">ISO/IEC base media file format</a></li> <li><a href="/wiki/MPEG-4_Part_14" class="mw-redirect" title="MPEG-4 Part 14">MPEG-4 Part 14</a> (MP4)</li> <li><a href="/wiki/Motion_JPEG_2000" title="Motion JPEG 2000">Motion JPEG 2000</a></li> <li><a href="/wiki/MPEG-21" title="MPEG-21">MPEG-21 Part 9</a></li> <li><a href="/wiki/MPEG_media_transport" title="MPEG media transport">MPEG media transport</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/ITU-T" title="ITU-T">ITU-T</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/MPEG-2#Systems" title="MPEG-2">H.222.0</a></li> <li><a href="/wiki/Motion_JPEG_2000" title="Motion JPEG 2000">T.802</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/Internet_Engineering_Task_Force" title="Internet Engineering Task Force">IETF</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Real-time_Transport_Protocol" title="Real-time Transport Protocol">RTP</a></li> <li><a href="/wiki/Ogg" title="Ogg">Ogg</a></li> <li><a href="/wiki/Matroska" title="Matroska">Matroska</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/Society_of_Motion_Picture_and_Television_Engineers" title="Society of Motion Picture and Television Engineers">SMPTE</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/General_Exchange_Format" title="General Exchange Format">GXF</a></li> <li><a href="/wiki/Material_Exchange_Format" title="Material Exchange Format">MXF</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">Others</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/3GP_and_3G2" title="3GP and 3G2">3GP and 3G2</a></li> <li><a href="/wiki/AMV_video_format" title="AMV video format">AMV</a></li> <li><a href="/wiki/Advanced_Systems_Format" title="Advanced Systems Format">ASF</a></li> <li><a href="/wiki/Audio_Interchange_File_Format" title="Audio Interchange File Format">AIFF</a></li> <li><a href="/wiki/Audio_Video_Interleave" title="Audio Video Interleave">AVI</a></li> <li><a href="/wiki/Au_file_format" title="Au file format">AU</a></li> <li><a href="/wiki/Better_Portable_Graphics" title="Better Portable Graphics">BPG</a></li> <li><a href="/wiki/Bink_Video" title="Bink Video">Bink</a> <ul><li><a href="/wiki/Smacker_video" title="Smacker video">Smacker</a></li></ul></li> <li><a href="/wiki/BMP_file_format" title="BMP file format">BMP</a></li> <li><a href="/wiki/DivX#DivX_Media_Format_(DMF)" title="DivX">DivX Media Format</a></li> <li><a href="/wiki/Enhanced_VOB" title="Enhanced VOB">EVO</a></li> <li><a href="/wiki/Flash_Video" title="Flash Video">Flash Video</a></li> <li><a href="/wiki/High_Efficiency_Image_File_Format" title="High Efficiency Image File Format">HEIF</a></li> <li><a href="/wiki/Interchange_File_Format" title="Interchange File Format">IFF</a></li> <li><a href="/wiki/.m2ts" title=".m2ts">M2TS</a></li> <li><a href="/wiki/Matroska" title="Matroska">Matroska</a> <ul><li><a href="/wiki/WebM" title="WebM">WebM</a></li></ul></li> <li><a href="/wiki/QuickTime_File_Format" title="QuickTime File Format">QuickTime File Format</a></li> <li><a href="/wiki/RatDVD" title="RatDVD">RatDVD</a></li> <li><a href="/wiki/RealMedia" title="RealMedia">RealMedia</a></li> <li><a href="/wiki/Resource_Interchange_File_Format" title="Resource Interchange File Format">RIFF</a> <ul><li><a href="/wiki/WAV" title="WAV">WAV</a></li></ul></li> <li><a href="/wiki/MOD_and_TOD" title="MOD and TOD">MOD and TOD</a></li> <li><a href="/wiki/VOB" title="VOB">VOB, IFO and BUP</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Collaborations</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/NETVC" title="NETVC">NETVC</a></li> <li><a href="/wiki/MPEG_LA" title="MPEG LA">MPEG LA</a></li> <li><a href="/wiki/Alliance_for_Open_Media" title="Alliance for Open Media">Alliance for Open Media</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Data_compression" title="Data compression">Methods</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Entropy_encoding" class="mw-redirect" title="Entropy encoding">Entropy</a> <ul><li><a href="/wiki/Arithmetic_coding" title="Arithmetic coding">Arithmetic</a></li> <li><a href="/wiki/Huffman_coding" title="Huffman coding">Huffman</a></li> <li><a href="/wiki/Modified_Huffman_coding" title="Modified Huffman coding">Modified</a></li></ul></li> <li><a href="/wiki/Linear_predictive_coding" title="Linear predictive coding">LPC</a> <ul><li><a href="/wiki/Algebraic_code-excited_linear_prediction" title="Algebraic code-excited linear prediction">ACELP</a></li> <li><a href="/wiki/Code-excited_linear_prediction" title="Code-excited linear prediction">CELP</a></li> <li><a href="/wiki/Line_spectral_pairs" title="Line spectral pairs">LSP</a></li> <li><a href="/wiki/Warped_linear_predictive_coding" title="Warped linear predictive coding">WLPC</a></li></ul></li> <li><a href="/wiki/Lossless_compression" title="Lossless compression">Lossless</a></li> <li><a href="/wiki/Lossy_compression" title="Lossy compression">Lossy</a></li> <li><a href="/wiki/LZ77_and_LZ78" title="LZ77 and LZ78">LZ</a> <ul><li><a href="/wiki/DEFLATE" class="mw-redirect" title="DEFLATE">DEFLATE</a></li> <li><a href="/wiki/Lempel%E2%80%93Ziv%E2%80%93Welch" title="Lempel–Ziv–Welch">LZW</a></li></ul></li> <li><a href="/wiki/Pulse-code_modulation" title="Pulse-code modulation">PCM</a> <ul><li><a href="/wiki/A-law_algorithm" title="A-law algorithm">A-law</a></li> <li><a href="/wiki/%CE%9C-law_algorithm" title="Μ-law algorithm">µ-law</a></li> <li><a href="/wiki/Adaptive_differential_pulse-code_modulation" title="Adaptive differential pulse-code modulation">ADPCM</a></li> <li><a href="/wiki/Differential_pulse-code_modulation" title="Differential pulse-code modulation">DPCM</a></li></ul></li> <li><a href="/wiki/Transform_coding" title="Transform coding">Transforms</a> <ul><li><a href="/wiki/Discrete_cosine_transform" title="Discrete cosine transform">DCT</a></li> <li><a href="/wiki/Fast_Fourier_transform" title="Fast Fourier transform">FFT</a></li> <li><a href="/wiki/Modified_discrete_cosine_transform" title="Modified discrete cosine transform">MDCT</a></li> <li><a href="/wiki/Wavelet" title="Wavelet">Wavelet</a> <ul><li><a href="/wiki/Daubechies_wavelet" title="Daubechies wavelet">Daubechies</a></li> <li><a href="/wiki/Discrete_wavelet_transform" title="Discrete wavelet transform">DWT</a></li></ul></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Lists</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Comparison_of_audio_coding_formats" title="Comparison of audio coding formats">Comparison of audio coding formats</a></li> <li><a href="/wiki/Comparison_of_video_codecs" title="Comparison of video codecs">Comparison of video codecs</a></li> <li><a href="/wiki/List_of_codecs" title="List of codecs">List of codecs</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div>See <a href="/wiki/Template:Compression_methods" title="Template:Compression methods">Compression methods</a> for techniques and <a href="/wiki/Template:Compression_software" title="Template:Compression software">Compression software</a> for codecs</div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374" /><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235" /></div><div role="navigation" class="navbox" aria-labelledby="High-definition_(HD)300" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374" /><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231" /><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:High-definition" title="Template:High-definition"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:High-definition" title="Template talk:High-definition"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:High-definition" title="Special:EditPage/Template:High-definition"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="High-definition_(HD)300" style="font-size:114%;margin:0 4em">High-definition (HD)</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Concepts</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/High-definition_television" title="High-definition television">High-definition television</a></li> <li><a href="/wiki/High-definition_video" title="High-definition video">High-definition video</a></li> <li><a href="/wiki/Ultra-high-definition_television" title="Ultra-high-definition television">Ultra-high-definition television</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Resolutions</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/720p" title="720p">720p (HD)</a></li> <li><a href="/wiki/1080i" title="1080i">1080i (Full HD)</a></li> <li><a href="/wiki/1080p" title="1080p">1080p (Full HD)</a></li> <li><a href="/wiki/1440p" title="1440p">1440p (Quad HD)</a></li> <li><a href="/wiki/4K_resolution" title="4K resolution">2160p (4K Ultra HD)</a></li> <li><a href="/wiki/8K_resolution" title="8K resolution">4320p (8K Ultra HD)</a></li> <li><a href="/wiki/16K_resolution" title="16K resolution">8640p (16K Ultra HD)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Analog_high-definition_television_system" class="mw-redirect" title="Analog high-definition television system">Analog broadcast</a><br /><span style="font-size:85%;">(All defunct)</span></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Analog_high-definition_television_system" class="mw-redirect" title="Analog high-definition television system">819 line system</a></li> <li><a href="/wiki/Multiplexed_Analogue_Components" title="Multiplexed Analogue Components">HD MAC</a></li> <li><a href="/wiki/Multiple_sub-Nyquist_sampling_encoding" title="Multiple sub-Nyquist sampling encoding">MUSE (Hi-Vision)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Digital broadcast</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ATSC_standards" title="ATSC standards">ATSC</a></li> <li><a href="/wiki/Digital_Terrestrial_Multimedia_Broadcast" title="Digital Terrestrial Multimedia Broadcast">DMB-T/H</a></li> <li><a href="/wiki/Digital_Video_Broadcasting" class="mw-redirect" title="Digital Video Broadcasting">DVB</a></li> <li><a href="/wiki/ISDB" title="ISDB">ISDB</a></li> <li><a href="/wiki/ISDB-T_International" title="ISDB-T International">SBTVD</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Audio</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Dolby_Digital" title="Dolby Digital">Dolby Digital</a></li> <li><a href="/wiki/Surround_sound" title="Surround sound">Surround sound</a></li> <li><a href="/wiki/Direct_Stream_Digital" title="Direct Stream Digital">DSD</a></li> <li><a href="/wiki/Digital_eXtreme_Definition" title="Digital eXtreme Definition">DXD</a></li> <li><a href="/wiki/DTS_(sound_system)" class="mw-redirect" title="DTS (sound system)">DTS</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Filming and storage</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Digital_Cinema_Initiatives" title="Digital Cinema Initiatives">DCI</a></li> <li><a href="/wiki/HDV" title="HDV">HDV</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/High-definition_pre-recorded_media_and_compression" title="High-definition pre-recorded media and compression">HD media and<br />compression</a></th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Archival_Disc" title="Archival Disc">Archival Disc</a></li> <li><a href="/wiki/AV1" title="AV1">AV1</a></li> <li><a href="/wiki/Blu-ray" title="Blu-ray">Blu-ray</a></li> <li><a href="/wiki/China_Blue_High-definition_Disc" title="China Blue High-definition Disc">CBHD</a></li> <li><a href="/wiki/D-VHS" title="D-VHS">D-VHS</a></li> <li><a href="/wiki/DVD-Audio" title="DVD-Audio">DVD-Audio</a></li> <li><a href="/wiki/Advanced_Video_Coding" title="Advanced Video Coding">H.264</a></li> <li><a href="/wiki/High_Efficiency_Video_Coding" title="High Efficiency Video Coding">H.265</a></li> <li><a href="/wiki/Versatile_Video_Coding" title="Versatile Video Coding">H.266</a></li> <li><a href="/wiki/HD_DVD" title="HD DVD">HD DVD</a></li> <li><a href="/wiki/Versatile_Multilayer_Disc" title="Versatile Multilayer Disc">HD VMD</a></li> <li><a href="/wiki/Laserdisc#Hi-Vision_LD" class="mw-redirect" title="Laserdisc">Hi-Vision LD</a></li> <li><a href="/wiki/MPEG-2" title="MPEG-2">MPEG-2</a></li> <li><a href="/wiki/Multiview_Video_Coding" title="Multiview Video Coding">MVC</a></li> <li><a href="/wiki/Super_Audio_CD" title="Super Audio CD">Super Audio CD</a></li> <li><a href="/wiki/Ultra_HD_Blu-ray" title="Ultra HD Blu-ray">Ultra HD Blu-ray</a></li> <li><a href="/wiki/Uncompressed_video" title="Uncompressed video">Uncompressed</a></li> <li><a href="/wiki/VC-1" title="VC-1">VC-1</a></li> <li><a href="/wiki/W-VHS" title="W-VHS">W-VHS</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Connectors</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Component_video" title="Component video">Component</a></li> <li><a href="/wiki/DisplayPort" title="DisplayPort">DisplayPort</a></li> <li><a href="/wiki/Digital_Visual_Interface" title="Digital Visual Interface">DVI</a></li> <li><a href="/wiki/HDMI" title="HDMI">HDMI</a></li> <li><a href="/wiki/VGA_connector" title="VGA connector">VGA</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Deployments</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/List_of_digital_television_deployments_by_country" title="List of digital television deployments by country">List of digital television deployments by country</a></li></ul> </div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374" /><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235" /></div><div role="navigation" class="navbox" aria-labelledby="Broadcast_video_formats33" style="padding:3px"><table class="nowraplinks mw-collapsible mw-collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374" /><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231" /><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Video_formats" title="Template:Video formats"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Video_formats" title="Template talk:Video formats"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Video_formats" title="Special:EditPage/Template:Video formats"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Broadcast_video_formats33" style="font-size:114%;margin:0 4em"><a href="/wiki/Video" title="Video">Broadcast video formats</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible uncollapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Television33" style="font-size:114%;margin:0 4em">Television</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Analog_television" title="Analog television">Analog</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/405-line_television_system" title="405-line television system">405 lines</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/CCIR_System_A" title="CCIR System A">System A</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/525_lines" title="525 lines">525 lines</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/CCIR_System_M" title="CCIR System M">System M</a> (Color systems: <a href="/wiki/NTSC" title="NTSC">NTSC</a>, <a href="/wiki/NTSC-J" title="NTSC-J">NTSC-J</a>, <a href="/wiki/Clear-Vision" title="Clear-Vision">Clear-Vision</a>, <a href="/wiki/PAL-M" title="PAL-M">PAL-M</a>)</li> <li><a href="/wiki/B-MAC" title="B-MAC">B-MAC</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/625_lines" title="625 lines">625 lines</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/CCIR_System_B" title="CCIR System B">System B</a>, <a href="/wiki/CCIR_System_C" title="CCIR System C">C</a>, <a href="/wiki/CCIR_System_D" title="CCIR System D">D</a>, <a href="/wiki/CCIR_System_G" title="CCIR System G">G</a>, <a href="/wiki/CCIR_System_H" title="CCIR System H">H</a>, <a href="/wiki/CCIR_System_I" title="CCIR System I">I</a>, <a href="/wiki/CCIR_System_K" title="CCIR System K">K</a>, <a href="/wiki/CCIR_System_L" title="CCIR System L">L</a>, <a href="/wiki/CCIR_System_N" title="CCIR System N">N</a> (Color systems: <a href="/wiki/PAL" title="PAL">PAL</a>, <a href="/wiki/PAL#PALN" title="PAL">PAL-N</a>, <a href="/wiki/PALplus" title="PALplus">PALplus</a>, <a href="/wiki/SECAM" title="SECAM">SECAM</a>)</li> <li><a href="/wiki/Multiplexed_Analogue_Components" title="Multiplexed Analogue Components">MAC</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/819_line" title="819 line">819 lines</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/CCIR_System_E" title="CCIR System E">System E</a>, <a href="/wiki/CCIR_System_F" title="CCIR System F">F</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">1125 lines</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Multiple_sub-Nyquist_sampling_encoding" title="Multiple sub-Nyquist sampling encoding">MUSE</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">1250 lines</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/HD-MAC" title="HD-MAC">HD-MAC</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/Audio_signal" title="Audio signal">Audio</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Multichannel_television_sound" class="mw-redirect" title="Multichannel television sound">BTSC (MTS)</a></li> <li><a href="/wiki/EIAJ_MTS" title="EIAJ MTS">EIAJ</a></li> <li><a href="/wiki/NICAM" title="NICAM">NICAM</a></li> <li><a href="/wiki/Second_audio_program" title="Second audio program">SAP</a></li> <li><a href="/wiki/Sound-in-Syncs" title="Sound-in-Syncs">Sound-in-Syncs</a></li> <li><a href="/wiki/Zweikanalton" title="Zweikanalton">Zweikanalton (A2/IGR)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">Hidden signals</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Closed_captioning" title="Closed captioning">Captioning</a></li> <li><a href="/wiki/CGMS-A" title="CGMS-A">CGMS-A</a></li> <li><a href="/wiki/Electronic_program_guide" title="Electronic program guide">EPG</a></li> <li><a href="/wiki/Ghost-canceling_reference" title="Ghost-canceling reference">GCR</a></li> <li><a href="/wiki/Programme_Delivery_Control" title="Programme Delivery Control">PDC</a></li> <li><a href="/wiki/Teletext" title="Teletext">Teletext</a></li> <li><a href="/wiki/Vertical_blanking_interval" title="Vertical blanking interval">VBI</a></li> <li><a href="/wiki/Video_Encoded_Invisible_Light" title="Video Encoded Invisible Light">VEIL</a></li> <li><a href="/wiki/VIT_signals" title="VIT signals">VIT</a></li> <li><a href="/wiki/Vertical_interval_timecode" title="Vertical interval timecode">VITC</a></li> <li><a href="/wiki/Widescreen_signaling" title="Widescreen signaling">WSS</a></li> <li><a href="/wiki/Extended_Data_Services" title="Extended Data Services">XDS</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">Historical</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Television_systems_before_1940" title="Television systems before 1940">Pre-1940</a></li> <li><a href="/wiki/Mechanical_television" title="Mechanical television">Mechanical television</a></li> <li><a href="/wiki/180-line_television_system" title="180-line television system">180-line</a></li> <li><a href="/wiki/343-line_television_system" title="343-line television system">343-line</a></li> <li><a href="/wiki/375-line_television_system" title="375-line television system">375-line</a></li> <li><a href="/wiki/441-line_television_system" title="441-line television system">441-line</a></li> <li><a href="/wiki/455-line_television_system" title="455-line television system">455-line</a></li> <li><a href="/wiki/567-line_television_system" title="567-line television system">567-line</a></li> <li><a href="/wiki/Field-sequential_color_system" title="Field-sequential color system">Field-sequential color system</a></li> <li><a href="/wiki/Soviet_Central_Television#OSKM" title="Soviet Central Television">OSKM</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Digital_television" title="Digital television">Digital</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/Interlaced_video" title="Interlaced video">Interlaced</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Standard-definition_television" title="Standard-definition television">SDTV</a> <ul><li><a href="/wiki/480i" title="480i">480i</a></li> <li><a href="/wiki/576i" title="576i">576i</a></li></ul></li> <li><a href="/wiki/High-definition_television" title="High-definition television">HDTV</a> <ul><li><a href="/wiki/1080i" title="1080i">1080i</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/Progressive_scan" title="Progressive scan">Progressive</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Low-definition_television" title="Low-definition television">LDTV</a> <ul><li><a href="/wiki/1seg" title="1seg">1seg</a></li> <li><a href="/wiki/Low-definition_television" title="Low-definition television">240p</a></li> <li><a href="/wiki/Low-definition_television" title="Low-definition television">288p</a></li></ul></li> <li><a href="/wiki/Enhanced-definition_television" title="Enhanced-definition television">EDTV</a> <ul><li><a href="/wiki/480p" title="480p">480p</a></li> <li><a href="/wiki/576p" title="576p">576p</a></li></ul></li> <li><a href="/wiki/High-definition_television" title="High-definition television">HDTV</a> <ul><li><a href="/wiki/720p" title="720p">720p</a></li> <li><a href="/wiki/1080p" title="1080p">1080p</a></li></ul></li> <li><a href="/wiki/Ultra-high-definition_television" title="Ultra-high-definition television">UHDTV</a> <ul><li><a href="/wiki/4K_resolution" title="4K resolution">4K</a></li> <li><a href="/wiki/8K_resolution" title="8K resolution">8K</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/H.262/MPEG-2_Part_2" title="H.262/MPEG-2 Part 2">MPEG-2 Video</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ATSC_standards" title="ATSC standards">ATSC</a></li> <li><a href="/wiki/DVB" title="DVB">DVB</a> <ul><li><a href="/wiki/DVB_3D-TV" title="DVB 3D-TV">DVB 3D-TV</a></li></ul></li> <li><a href="/wiki/ISDB" title="ISDB">ISDB</a></li> <li><a href="/wiki/Digital_Terrestrial_Multimedia_Broadcast" title="Digital Terrestrial Multimedia Broadcast">DTMB</a></li> <li><a href="/wiki/ChinaSat_9" title="ChinaSat 9">ABS-S</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/Audio_Video_Standard#First_generation" title="Audio Video Standard">AVS</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/China_Multimedia_Mobile_Broadcasting" title="China Multimedia Mobile Broadcasting">CMMB</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/Audio_Video_Standard#First_generation" title="Audio Video Standard">AVS+</a><sup id="cite_ref-avs_9-0" class="reference"><a href="#cite_note-avs-9"><span class="cite-bracket">[</span>note 1<span class="cite-bracket">]</span></a></sup></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Digital_Terrestrial_Multimedia_Broadcast" title="Digital Terrestrial Multimedia Broadcast">DTMB</a></li> <li><a href="/wiki/ChinaSat_9" title="ChinaSat 9">ABS-S</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/MPEG-4_Part_2" title="MPEG-4 Part 2">MPEG-4 Visual</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/MobaHo!" title="MobaHo!">MobaHo!</a><sup id="cite_ref-mobaho_10-0" class="reference"><a href="#cite_note-mobaho-10"><span class="cite-bracket">[</span>note 2<span class="cite-bracket">]</span></a></sup></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/Advanced_Video_Coding" title="Advanced Video Coding">MPEG-4 AVC</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ATSC_standards#H.264/MPEG-4_AVC" title="ATSC standards">ATSC A/72</a></li> <li><a href="/wiki/China_Multimedia_Mobile_Broadcasting" title="China Multimedia Mobile Broadcasting">CMMB</a></li> <li><a href="/wiki/Digital_multimedia_broadcasting" title="Digital multimedia broadcasting">DMB</a></li> <li><a href="/wiki/Digital_Terrestrial_Multimedia_Broadcast" title="Digital Terrestrial Multimedia Broadcast">DTMB</a></li> <li><a href="/wiki/Digital_Video_Broadcasting" class="mw-redirect" title="Digital Video Broadcasting">DVB</a></li> <li><a href="/wiki/ISDB-T_International" title="ISDB-T International">SBTVD</a></li> <li><a href="/wiki/1seg" title="1seg">1seg</a></li> <li><a href="/wiki/MobaHo!" title="MobaHo!">MobaHo!</a><sup id="cite_ref-mobaho_10-1" class="reference"><a href="#cite_note-mobaho-10"><span class="cite-bracket">[</span>note 2<span class="cite-bracket">]</span></a></sup></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/Audio_Video_Standard#Second_generation" title="Audio Video Standard">AVS2</a><sup id="cite_ref-avs_9-1" class="reference"><a href="#cite_note-avs-9"><span class="cite-bracket">[</span>note 1<span class="cite-bracket">]</span></a></sup></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ChinaSat_9" title="ChinaSat 9">ABS-S</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/High_Efficiency_Video_Coding" title="High Efficiency Video Coding">MPEG-H HEVC</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ATSC_3.0" title="ATSC 3.0">ATSC 3.0</a></li> <li><a href="/wiki/Digital_Video_Broadcasting" class="mw-redirect" title="Digital Video Broadcasting">DVB</a></li> <li><a href="/wiki/Digital_multimedia_broadcasting" title="Digital multimedia broadcasting">HD DMB</a></li> <li><a href="/wiki/ISDB#ISDB-S3" title="ISDB">ISDB-S3</a></li> <li><a href="/wiki/Digital_Terrestrial_Multimedia_Broadcast" title="Digital Terrestrial Multimedia Broadcast">DTMB</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em"><a href="/wiki/Surround_sound" title="Surround sound">Audio</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Dolby_Digital" title="Dolby Digital">AC-3</a> (<a href="/wiki/Surround_sound" title="Surround sound">5.1</a>)</li> <li><a class="mw-selflink selflink">AC-4</a></li> <li><a href="/wiki/DTS_(sound_system)" class="mw-redirect" title="DTS (sound system)">DTS</a></li> <li><a href="/wiki/Dynamic_Resolution_Adaptation" title="Dynamic Resolution Adaptation">DRA</a></li> <li><a href="/wiki/MPEG-1_Audio_Layer_II" title="MPEG-1 Audio Layer II">MPEG-1 Audio Layer II</a></li> <li><a href="/wiki/MPEG_Multichannel" title="MPEG Multichannel">MPEG Multichannel</a></li> <li><a href="/wiki/Pulse-code_modulation" title="Pulse-code modulation">PCM</a></li> <li><a href="/wiki/Linear_pulse-code_modulation" class="mw-redirect" title="Linear pulse-code modulation">LPCM</a></li> <li><a href="/wiki/Advanced_Audio_Coding" title="Advanced Audio Coding">AAC</a></li> <li><a href="/wiki/High-Efficiency_Advanced_Audio_Coding" title="High-Efficiency Advanced Audio Coding">HE-AAC</a></li> <li><a href="/wiki/MPEG-H_3D_Audio" title="MPEG-H 3D Audio">MPEG-H 3D Audio</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:5em">Hidden signals</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Active_Format_Description" title="Active Format Description">AFD</a></li> <li><a href="/wiki/Broadcast_flag" title="Broadcast flag">Broadcast flag</a></li> <li><a href="/wiki/Closed_captioning" title="Closed captioning">Captioning</a></li> <li><a href="/wiki/DVB-CPCM" title="DVB-CPCM">CPCM</a></li> <li><a href="/wiki/Electronic_program_guide" title="Electronic program guide">EPG</a></li> <li><a href="/wiki/Teletext" title="Teletext">Teletext</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2" style="text-align: left;"><div><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-avs-9"><span class="mw-cite-backlink">^ <a href="#cite_ref-avs_9-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-avs_9-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">Also used in China's DVB-S/S2 network.</span> </li> <li id="cite_note-mobaho-10"><span class="mw-cite-backlink">^ <a href="#cite_ref-mobaho_10-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-mobaho_10-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">Defunct.</span> </li> </ol></div></div></div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible mw-collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Technical_issues33" style="font-size:114%;margin:0 4em">Technical issues</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/14:9_aspect_ratio" title="14:9 aspect ratio">14:9 compromise</a></li> <li><a href="/wiki/Broadcast-safe" title="Broadcast-safe">Broadcast-safe</a></li> <li><a href="/wiki/Digital_cinema" title="Digital cinema">Digital cinema</a> (<a href="/wiki/Digital_Cinema_Initiative" class="mw-redirect" title="Digital Cinema Initiative">DCI</a>)</li> <li><a href="/wiki/Display_motion_blur" title="Display motion blur">Display motion blur</a></li> <li><a href="/wiki/MPEG_transport_stream" title="MPEG transport stream">MPEG transport stream</a></li> <li><a href="/wiki/Reverse_Standards_Conversion" title="Reverse Standards Conversion">Reverse Standards Conversion</a></li> <li><a href="/wiki/Television_standards_conversion" title="Television standards conversion">Standards conversion</a></li> <li><a href="/wiki/Television_transmitter" title="Television transmitter">Television transmitter</a></li> <li><a href="/wiki/Test_card" title="Test card">Test card</a></li> <li><a href="/wiki/Video_on_demand" title="Video on demand">Video on demand</a></li> <li><a href="/wiki/Video_processing" title="Video processing">Video processing</a></li> <li><a href="/wiki/Widescreen_signaling" title="Widescreen signaling">Widescreen signaling</a></li> <li>Templates (<a href="/wiki/Template:Analogue_TV_transmitter_topics" title="Template:Analogue TV transmitter topics">Analogue TV Topics</a>)</li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table></div>    </div><noscript><img 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