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Available in 10 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-10" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">10 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Open_Sound_Control" title="Open Sound Control – Catalan" lang="ca" hreflang="ca" data-title="Open Sound Control" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Open_Sound_Control" title="Open Sound Control – German" lang="de" hreflang="de" data-title="Open Sound Control" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Open_Sound_Control" title="Open Sound Control – Spanish" lang="es" hreflang="es" data-title="Open Sound Control" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Open_Sound_Control" title="Open Sound Control – French" lang="fr" hreflang="fr" data-title="Open Sound Control" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/Open_Sound_Control" title="Open Sound Control – Hebrew" lang="he" hreflang="he" data-title="Open Sound Control" data-language-autonym="עברית" data-language-local-name="Hebrew" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/OpenSound_Control" title="OpenSound Control – Japanese" lang="ja" hreflang="ja" data-title="OpenSound Control" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/OpenSound_Control" title="OpenSound Control – Polish" lang="pl" hreflang="pl" data-title="OpenSound Control" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/Open_Sound_Control" title="Open Sound Control – Russian" lang="ru" hreflang="ru" data-title="Open Sound Control" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/OpenSound_Control" title="OpenSound Control – Swedish" lang="sv" hreflang="sv" data-title="OpenSound Control" data-language-autonym="Svenska" data-language-local-name="Swedish" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/Open_Sound_Control" title="Open Sound Control – Ukrainian" lang="uk" hreflang="uk" data-title="Open Sound Control" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li> </ul> <div 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id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Protocol for multimedia devices</div> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 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.ambox{display:none!important}}</style><table class="box-No_footnotes plainlinks metadata ambox ambox-style ambox-No_footnotes" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Text_document_with_red_question_mark.svg/40px-Text_document_with_red_question_mark.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Text_document_with_red_question_mark.svg/60px-Text_document_with_red_question_mark.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Text_document_with_red_question_mark.svg/80px-Text_document_with_red_question_mark.svg.png 2x" data-file-width="48" data-file-height="48" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article includes a <a href="/wiki/Wikipedia:Citing_sources" title="Wikipedia:Citing sources">list of references</a>, <a href="/wiki/Wikipedia:Further_reading" title="Wikipedia:Further reading">related reading</a>, or <a href="/wiki/Wikipedia:External_links" title="Wikipedia:External links">external links</a>, <b>but its sources remain unclear because it lacks <a href="/wiki/Wikipedia:Citing_sources#Inline_citations" title="Wikipedia:Citing sources">inline citations</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Wikipedia:WikiProject_Fact_and_Reference_Check" class="mw-redirect" title="Wikipedia:WikiProject Fact and Reference Check">improve</a> this article by <a href="/wiki/Wikipedia:When_to_cite" title="Wikipedia:When to cite">introducing</a> more precise citations.</span> <span class="date-container"><i>(<span class="date">August 2010</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <p><b>Open Sound Control</b> (<b>OSC</b>) is a <a href="/wiki/Communications_protocol" class="mw-redirect" title="Communications protocol">protocol</a> for networking <a href="/wiki/Synthesizer" title="Synthesizer">sound synthesizers</a>, computers, and other multimedia devices for purposes such as musical performance or <a href="/wiki/Show_control" title="Show control">show control</a>. OSC's advantages include <a href="/wiki/Interoperability" title="Interoperability">interoperability</a>, accuracy, flexibility and enhanced organization and documentation.<sup id="cite_ref-osc_org_1-0" class="reference"><a href="#cite_note-osc_org-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Its disadvantages include inefficient <a href="/wiki/Computer_programming" title="Computer programming">coding of information</a>, increased load on <a href="/wiki/Embedded_system" title="Embedded system">embedded processors</a>,<sup id="cite_ref-:0_2-0" class="reference"><a href="#cite_note-:0-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> and lack of standardized messages/interoperability.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> The first specification was released in March 2002. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Motivation">Motivation</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Open_Sound_Control&action=edit&section=1" title="Edit section: Motivation"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>OSC is a <a href="/wiki/Content_format" title="Content format">content format</a> developed at <a href="/wiki/CNMAT" class="mw-redirect" title="CNMAT">CNMAT</a> by Adrian Freed and Matt Wright comparable to <a href="/wiki/XML" title="XML">XML</a>, <a href="/wiki/WDDX" title="WDDX">WDDX</a>, or <a href="/wiki/JSON" title="JSON">JSON</a>.<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> It was originally intended for sharing music performance data (<a href="/wiki/Gesture" title="Gesture">gestures</a>, parameters and note sequences) between musical instruments (especially <a href="/wiki/Electronic_musical_instruments" class="mw-redirect" title="Electronic musical instruments">electronic musical instruments</a> such as <a href="/wiki/Synthesizers" class="mw-redirect" title="Synthesizers">synthesizers</a>), computers, and other multimedia devices. OSC is sometimes used as an alternative to the 1983 <a href="/wiki/MIDI" title="MIDI">MIDI</a> standard, when higher resolution and a richer parameter space is desired. OSC messages are transported across the internet and within local subnets using <a href="/wiki/UDP/IP" class="mw-redirect" title="UDP/IP">UDP/IP</a> and <a href="/wiki/Ethernet" title="Ethernet">Ethernet</a>. OSC messages between gestural controllers are usually transmitted over serial endpoints of <a href="/wiki/USB" title="USB">USB</a> wrapped in the <a href="/wiki/Serial_Line_Internet_Protocol" title="Serial Line Internet Protocol">SLIP</a> protocol.<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. (December 2022)">citation needed</span></a></i>]</sup> </p> <div class="mw-heading mw-heading2"><h2 id="Features">Features</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Open_Sound_Control&action=edit&section=2" title="Edit section: Features"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>OSC's main features, compared to MIDI, include:<sup id="cite_ref-osc_org_1-1" class="reference"><a href="#cite_note-osc_org-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <ul><li>Open-ended, dynamic, <a href="/wiki/Uniform_Resource_Identifier" title="Uniform Resource Identifier">URI</a>-style symbolic naming scheme</li> <li>Symbolic and high-resolution numeric data</li> <li><a href="/wiki/Pattern_matching" title="Pattern matching">Pattern matching</a> language to specify multiple recipients of a single message</li> <li>High resolution <a href="/wiki/Network_Time_Protocol#Timestamps" title="Network Time Protocol">time tags</a></li> <li>"Bundles" of messages whose effects must occur simultaneously</li></ul> <div class="mw-heading mw-heading2"><h2 id="Applications">Applications</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Open_Sound_Control&action=edit&section=3" title="Edit section: Applications"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>There are dozens of OSC applications, including real-time sound and media processing environments, web interactivity tools, software synthesizers, programming languages and hardware devices. OSC has achieved wide use in fields including <a href="/wiki/Musical_expression" title="Musical expression">musical expression</a>, robotics, video performance interfaces, distributed music systems and <a href="/wiki/Inter-process_communication" title="Inter-process communication">inter-process communication</a>. </p><p>The <a href="/wiki/TUIO" class="mw-redirect" title="TUIO">TUIO</a> community standard for tangible interfaces such as multitouch is built on top of OSC. Similarly the GDIF system for representing gestures integrates OSC. </p><p>OSC is used extensively in experimental musical controllers, and has been built into several open source and commercial products. </p><p>The Open Sound World (OSW) music programming language is designed around OSC messaging.<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>OSC is the heart of the <a href="/wiki/Disposable_Soft_Synth_Interface" title="Disposable Soft Synth Interface">DSSI</a> plugin API, an evolution of the LADSPA API, in order to make the eventual <a href="/wiki/Graphical_user_interface" title="Graphical user interface">GUI</a> interact with the core of the plugin via messaging the plugin host. LADSPA and DSSI are APIs dedicated to audio effects and synthesizers. </p><p>In 2007, a standardized namespace within OSC called SYN, for communication between controllers, synthesizers and hosts, was proposed, </p><p>Notable software with OSC implementations include: </p> <style data-mw-deduplicate="TemplateStyles:r1184024115">.mw-parser-output .div-col{margin-top:0.3em;column-width:30em}.mw-parser-output .div-col-small{font-size:90%}.mw-parser-output .div-col-rules{column-rule:1px solid #aaa}.mw-parser-output .div-col dl,.mw-parser-output .div-col ol,.mw-parser-output .div-col ul{margin-top:0}.mw-parser-output .div-col li,.mw-parser-output .div-col dd{page-break-inside:avoid;break-inside:avoid-column}</style><div class="div-col" style="column-width: 22em;"> <ul><li><a href="/wiki/Ableton_Live" title="Ableton Live">Ableton Live</a></li> <li><a href="/wiki/Ardour_(audio_processor)" class="mw-redirect" title="Ardour (audio processor)">Ardour</a></li> <li><a href="/w/index.php?title=Aurora_dBTechnologies_Network&action=edit&redlink=1" class="new" title="Aurora dBTechnologies Network (page does not exist)">Aurora dBTechnologies Network</a></li> <li><a href="/wiki/BespokeSynth" title="BespokeSynth">BespokeSynth</a></li> <li><a href="/wiki/ChucK" title="ChucK">ChucK</a></li> <li><a href="/w/index.php?title=CasparCG_(open_source_video_graphics_engine)&action=edit&redlink=1" class="new" title="CasparCG (open source video graphics engine) (page does not exist)">CasparCG (open source video graphics engine)</a></li> <li><a href="/wiki/Crystal_Space" title="Crystal Space">Crystal Space</a></li> <li><a href="/wiki/CSound" class="mw-redirect" title="CSound">CSound</a></li> <li><a href="/wiki/Digital_Performer" title="Digital Performer">Digital Performer</a></li> <li><a href="/wiki/Fluxus_(programming_environment)" title="Fluxus (programming environment)">Fluxus</a></li> <li><a href="/wiki/FreeJ" title="FreeJ">FreeJ</a></li> <li><a href="/wiki/Gig_Performer" title="Gig Performer">Gig Performer</a></li> <li><a href="/wiki/IanniX" class="mw-redirect" title="IanniX">IanniX</a></li> <li><a href="/wiki/Impromptu_(programming_environment)" title="Impromptu (programming environment)">Impromptu</a></li> <li><a href="/wiki/Isadora_(software)" title="Isadora (software)">Isadora</a> (v.1.1)</li> <li><a href="/wiki/JUCE" title="JUCE">JUCE</a> (Framework)</li> <li><a href="/wiki/Kyma_(sound_design_language)" title="Kyma (sound design language)">Kyma</a></li> <li><a href="/wiki/Lily_(software)" title="Lily (software)">Lily</a></li> <li><a href="/wiki/LiVES" title="LiVES">LiVES</a></li> <li><a href="/wiki/Logic_Pro" title="Logic Pro">Logic Pro</a></li> <li><a href="/w/index.php?title=LoopToGo&action=edit&redlink=1" class="new" title="LoopToGo (page does not exist)">LoopToGo</a></li> <li><a href="/w/index.php?title=MadMapper&action=edit&redlink=1" class="new" title="MadMapper (page does not exist)">MadMapper</a></li> <li><a href="/wiki/Magic_Music_Visuals" title="Magic Music Visuals">Magic Music Visuals</a></li> <li><a href="/wiki/Max/MSP" class="mw-redirect" title="Max/MSP">Max/MSP</a></li> <li><a href="/wiki/Mocolo" title="Mocolo">Mocolo</a></li> <li><a href="/wiki/Modul8" title="Modul8">Modul8</a></li> <li><a href="/wiki/MuseScore" title="MuseScore">MuseScore</a></li> <li><a href="/wiki/Mxwendler" title="Mxwendler">Mxwendler</a></li> <li><a href="/wiki/OpenFrameworks" title="OpenFrameworks">openFrameworks</a></li> <li><a href="/w/index.php?title=Ossia_score&action=edit&redlink=1" class="new" title="Ossia score (page does not exist)">ossia score</a></li> <li><a href="/wiki/Processing_(programming_language)" class="mw-redirect" title="Processing (programming language)">Processing</a></li> <li><a href="/wiki/Pure_(programming_language)" title="Pure (programming language)">Pure</a></li> <li><a href="/wiki/Pure_Data" title="Pure Data">Pure Data</a></li> <li><a href="/wiki/QLab" title="QLab">QLab</a></li> <li><a href="/wiki/Quartz_Composer" title="Quartz Composer">Quartz Composer</a> (as of v3.0 / <a href="/wiki/Mac_OS_X_v10.5" class="mw-redirect" title="Mac OS X v10.5">Mac OS X v10.5</a>)</li> <li><a href="/wiki/Reaktor" title="Reaktor">Reaktor</a></li> <li><a href="/wiki/REAPER" title="REAPER">REAPER</a></li> <li><a href="/wiki/Renoise" title="Renoise">Renoise</a></li> <li><a href="/w/index.php?title=Resolume_Arena/Avenue&action=edit&redlink=1" class="new" title="Resolume Arena/Avenue (page does not exist)">Resolume Arena/Avenue</a></li> <li><a href="/w/index.php?title=ShowForge&action=edit&redlink=1" class="new" title="ShowForge (page does not exist)">ShowForge</a></li> <li><a href="/wiki/Sonic_Pi" title="Sonic Pi">Sonic Pi</a></li> <li><a href="/w/index.php?title=SPAT_Revolution&action=edit&redlink=1" class="new" title="SPAT Revolution (page does not exist)">SPAT Revolution</a></li> <li><a href="/wiki/Squeak" title="Squeak">Squeak</a></li> <li><a href="/wiki/SuperCollider" title="SuperCollider">SuperCollider</a></li> <li><a href="/w/index.php?title=Surge_XT&action=edit&redlink=1" class="new" title="Surge XT (page does not exist)">Surge XT</a></li> <li><a href="/wiki/TouchDesigner" title="TouchDesigner">TouchDesigner</a></li> <li><a href="/wiki/Unreal_Engine" title="Unreal Engine">Unreal Engine</a></li> <li><a href="/wiki/VRChat" title="VRChat">VRChat</a></li> <li><a href="/w/index.php?title=Ventuz&action=edit&redlink=1" class="new" title="Ventuz (page does not exist)">Ventuz</a></li></ul></div> <p>Notable hardware with OSC implementations include: </p> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1184024115"><div class="div-col" style="column-width: 22em;"> <ul><li><a href="/wiki/AlphaSphere_(Instrument)" class="mw-redirect" title="AlphaSphere (Instrument)">AlphaSphere</a></li> <li><a href="/wiki/Audiocubes" title="Audiocubes">Audiocubes</a></li> <li><a href="/w/index.php?title=ETCConnect&action=edit&redlink=1" class="new" title="ETCConnect (page does not exist)">ETC</a> EOS Consoles</li> <li><a href="/wiki/DiGiCo" title="DiGiCo">DiGiCo</a> SD Mixing Consoles</li> <li><a href="/w/index.php?title=Flic_(company)&action=edit&redlink=1" class="new" title="Flic (company) (page does not exist)">Flic</a> Flic smart controller</li> <li><a href="/wiki/Kyma_(sound_design_language)" title="Kyma (sound design language)">Kyma</a></li> <li><a href="/wiki/Lemur_(input_device)" title="Lemur (input device)">Lemur</a></li> <li><a href="/w/index.php?title=MC2_Delta-DSP_Amplifiers&action=edit&redlink=1" class="new" title="MC2 Delta-DSP Amplifiers (page does not exist)">MC2 Delta-DSP Amplifiers</a></li> <li><a href="/wiki/MIDIbox" title="MIDIbox">MIDIbox</a></li> <li><a href="/wiki/Milkymist" class="mw-redirect" title="Milkymist">Milkymist</a> One</li> <li><a href="/wiki/Monome" title="Monome">Monome 40h</a></li> <li><a href="/wiki/X32_Digital_Mixing_Console" title="X32 Digital Mixing Console">X32 Digital Mixing Console</a></li> <li><a href="/w/index.php?title=XTA_DPA_Amplifiers&action=edit&redlink=1" class="new" title="XTA DPA Amplifiers (page does not exist)">XTA DPA Amplifiers</a></li> <li><a href="/w/index.php?title=Yamaha_Rivage_PM_Series_Consoles_(V5.0)&action=edit&redlink=1" class="new" title="Yamaha Rivage PM Series Consoles (V5.0) (page does not exist)">Yamaha Rivage PM Series Consoles (V5.0)</a></li></ul></div> <div class="mw-heading mw-heading2"><h2 id="Design">Design</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Open_Sound_Control&action=edit&section=4" title="Edit section: Design"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>OSC messages consist of an address pattern (such as <code>/oscillator/4/frequency</code>), a type tag string (such as <code>,fi</code> for a <a href="/wiki/Float32" class="mw-redirect" title="Float32">float32</a> argument followed by an <a href="/wiki/Int32" class="mw-redirect" title="Int32">int32</a> argument), and the arguments themselves (which may include a time tag).<sup id="cite_ref-:1_8-0" class="reference"><a href="#cite_note-:1-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> Address patterns form a <a href="/wiki/Namespace" title="Namespace">hierarchical name space</a>, reminiscent of a <a href="/wiki/Unix" title="Unix">Unix</a> <a href="/wiki/Filesystem" class="mw-redirect" title="Filesystem">filesystem</a> path, or a <a href="/wiki/Uniform_Resource_Locator" class="mw-redirect" title="Uniform Resource Locator">URL</a>, and refer to "<a href="/wiki/Method_(computer_programming)" title="Method (computer programming)">Methods</a>" inside the server, which are invoked with the attached <a href="/wiki/Parameter_(computer_programming)" title="Parameter (computer programming)">arguments</a>. Type tag strings are a compact string representation of the argument types. Arguments are represented in <a href="/wiki/Binary_number" title="Binary number">binary</a> form with four-<a href="/wiki/Byte" title="Byte">byte</a> alignment. The core types supported are </p> <ul><li>32-bit <a href="/wiki/Two%27s_complement" title="Two's complement">two's complement</a> signed integers</li> <li>32-bit <a href="/wiki/IEEE_754-2008" class="mw-redirect" title="IEEE 754-2008">IEEE floating point</a> numbers</li> <li><a href="/wiki/Null-terminated_string" title="Null-terminated string">Null-terminated</a> arrays of eight-bit encoded data (C-style <a href="/wiki/String_(computer_science)" title="String (computer science)">strings</a>)</li> <li>arbitrary sized <a href="/wiki/Binary_large_object" class="mw-redirect" title="Binary large object">blob</a> (e.g. audio data, or a video frame)</li></ul> <p>An example message is included in the spec (with null padding bytes represented by ␀): <code>/oscillator/4/frequency␀,f␀␀</code>, Followed by the 4-byte float32 representation of 440.0: 0x43dc0000.<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p><p>Messages may be combined into bundles, which themselves may be combined into bundles, etc. Each bundle contains a timestamp, which determines whether the server should respond immediately or at some point in the future.<sup id="cite_ref-:1_8-1" class="reference"><a href="#cite_note-:1-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>Applications commonly employ extensions to this core set. More recently some of these extensions such as a compact Boolean type were integrated into the required core types of OSC 1.1. </p><p>The advantages of OSC over <a href="/wiki/MIDI" title="MIDI">MIDI</a> are primarily internet connectivity; <a href="/wiki/Data_type" title="Data type">data type</a> resolution; and the comparative ease of specifying a symbolic path, as opposed to specifying all connections as seven-bit numbers with seven-bit or fourteen-bit data types.<sup id="cite_ref-:1_8-2" class="reference"><a href="#cite_note-:1-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> This human-readability has the disadvantage of being inefficient to transmit and more difficult to parse by embedded firmware, however.<sup id="cite_ref-:0_2-1" class="reference"><a href="#cite_note-:0-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>The spec does not define any particular OSC Methods or OSC Containers. All messages are implementation-defined and vary from server to server. </p> <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=Open_Sound_Control&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-osc_org-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-osc_org_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-osc_org_1-1"><sup><i><b>b</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 web cs1"><a rel="nofollow" class="external text" href="http://opensoundcontrol.org/spec-1_0.html#introduction">"Introduction to OSC"</a>. <i>opensoundcontrol.org</i>. 7 April 2021<span class="reference-accessdate">. Retrieved <span class="nowrap">11 September</span> 2021</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=opensoundcontrol.org&rft.atitle=Introduction+to+OSC&rft.date=2021-04-07&rft_id=http%3A%2F%2Fopensoundcontrol.org%2Fspec-1_0.html%23introduction&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Sound+Control" class="Z3988"></span></span> </li> <li id="cite_note-:0-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-:0_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-:0_2-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFFraietta2008" class="citation web cs1">Fraietta, Angelo (2008). "Open Sound Control: Constraints and Limitations". <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.5281%2Fzenodo.1179537">10.5281/zenodo.1179537</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:5690441">5690441</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Open+Sound+Control%3A+Constraints+and+Limitations&rft.date=2008&rft_id=info%3Adoi%2F10.5281%2Fzenodo.1179537&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A5690441%23id-name%3DS2CID&rft.aulast=Fraietta&rft.aufirst=Angelo&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Sound+Control" class="Z3988"></span> <span class="cs1-visible-error citation-comment"><code class="cs1-code">{{<a href="/wiki/Template:Cite_web" title="Template:Cite web">cite web</a>}}</code>: </span><span class="cs1-visible-error citation-comment">Missing or empty <code class="cs1-code">|url=</code> (<a href="/wiki/Help:CS1_errors#cite_web_url" title="Help:CS1 errors">help</a>)</span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</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://github.com/fabb/SynOSCopy">"Home · fabb/SynOSCopy Wiki"</a>. <i>GitHub</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2022-12-31</span></span>. <q>one of the reasons OSC has not replaced MIDI yet is that there is no connect-and-play … There is no standard namespace in OSC for interfacing e.g. a synth</q></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=GitHub&rft.atitle=Home+%C2%B7+fabb%2FSynOSCopy+Wiki&rft_id=https%3A%2F%2Fgithub.com%2Ffabb%2FSynOSCopy&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Sound+Control" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSupper2012" class="citation web cs1">Supper, Ben (October 24, 2012). <a rel="nofollow" class="external text" href="https://focusritedevelopmentteam.wordpress.com/2012/10/24/we-hate-midi-we-love-midi/">"We hate MIDI. We love MIDI"</a>. <i>Focusrite Development</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2023-01-01</span></span>. <q>OSC suffers from a superset of this problem: it's anarchy, and deliberately so. The owners of the specification have been so eager to avoid imposing constraints upon it that it has become increasingly difficult for hardware to cope with it. … More severely, there is an interoperability problem. OSC lacks a defined namespace for even the most common musical exchanges, to the extent that one cannot use it to send Middle C from a sequencer to a synthesiser in a standardised manner</q></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Focusrite+Development&rft.atitle=We+hate+MIDI.+We+love+MIDI.&rft.date=2012-10-24&rft.aulast=Supper&rft.aufirst=Ben&rft_id=https%3A%2F%2Ffocusritedevelopmentteam.wordpress.com%2F2012%2F10%2F24%2Fwe-hate-midi-we-love-midi%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Sound+Control" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</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://www.nime.org/proceedings/2014/nime2014_300.pdf">"OSC-Namespace and OSC-State: Schemata for Describing the Namespace and State of OSC-Enabled Systems"</a> <span class="cs1-format">(PDF)</span>. <q>OSC also introduces new obstacles. First, since there is no fixed set of messages, each participating server needs to know what messages it can send to the servers it intends to communicate with. Currently the OSC standard does not provide for a means of programmatically discovering all messages a server responds to</q></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=OSC-Namespace+and+OSC-State%3A+Schemata+for+Describing+the+Namespace+and+State+of+OSC-Enabled+Systems&rft_id=https%3A%2F%2Fwww.nime.org%2Fproceedings%2F2014%2Fnime2014_300.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Sound+Control" 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="http://cnmat.berkeley.edu/opensoundcontrol">"OpenSoundControl | CNMAT"</a>. <i>cnmat.berkeley.edu</i><span class="reference-accessdate">. Retrieved <span class="nowrap">22 December</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=cnmat.berkeley.edu&rft.atitle=OpenSoundControl+%7C+CNMAT&rft_id=http%3A%2F%2Fcnmat.berkeley.edu%2Fopensoundcontrol&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Sound+Control" 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"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://osw.sourceforge.net/manual/osc.htm">"OSW Manual OpenSound Control (OSC)"</a>. <i>osw.sourceforge.net</i><span class="reference-accessdate">. Retrieved <span class="nowrap">22 December</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=osw.sourceforge.net&rft.atitle=OSW+Manual+OpenSound+Control+%28OSC%29&rft_id=http%3A%2F%2Fosw.sourceforge.net%2Fmanual%2Fosc.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Sound+Control" class="Z3988"></span></span> </li> <li id="cite_note-:1-8"><span class="mw-cite-backlink">^ <a href="#cite_ref-:1_8-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-:1_8-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-:1_8-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFWright2002" class="citation web cs1">Wright, Matt (March 26, 2002). <a rel="nofollow" class="external text" href="https://opensoundcontrol.stanford.edu/spec-1_0.html">"The Open Sound Control 1.0 Specification"</a>. <i>opensoundcontrol.org</i><span class="reference-accessdate">. Retrieved <span class="nowrap">22 December</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=opensoundcontrol.org&rft.atitle=The+Open+Sound+Control+1.0+Specification&rft.date=2002-03-26&rft.aulast=Wright&rft.aufirst=Matt&rft_id=https%3A%2F%2Fopensoundcontrol.stanford.edu%2Fspec-1_0.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Sound+Control" class="Z3988"></span></span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFWright2002" class="citation web cs1">Wright, Matt (March 29, 2002). <a rel="nofollow" class="external text" href="https://opensoundcontrol.stanford.edu/spec-1_0-examples.html#argument">"Examples Supporting the OpenSoundControl 1.0 Spec"</a>. <i>opensoundcontrol.stanford.edu</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2023-01-01</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=opensoundcontrol.stanford.edu&rft.atitle=Examples+Supporting+the+OpenSoundControl+1.0+Spec&rft.date=2002-03-29&rft.aulast=Wright&rft.aufirst=Matt&rft_id=https%3A%2F%2Fopensoundcontrol.stanford.edu%2Fspec-1_0-examples.html%23argument&rfr_id=info%3Asid%2Fen.wikipedia.org%3AOpen+Sound+Control" class="Z3988"></span></span> </li> </ol></div></div> <ul><li>Schmeder, A., Freed, A., and Wessel, D., "Best practices for Open Sound Control", Linux Audio Conference, Utrecht, The Netherlands, 2010.</li> <li>Freed, A., Schmeder, A., "Features and Future of Open Sound Control version 1.1 for NIME", NIME Conference 2009.</li> <li>Wright, M., Freed, A., "Open Sound Control: A New Protocol for Communicating with Sound Synthesizers", International Computer Music Conference, Thessaloniki, Greece, 1997.</li> <li>Patrick-Gilles Maillot, "UNOFFICIAL X32/M32 OSC REMOTE PROTOCOL", <a rel="nofollow" class="external free" href="https://drive.google.com/file/d/1Snbwx3m6us6L1qeP1_pD6s8hbJpIpD0a/view?usp=share_link">https://drive.google.com/file/d/1Snbwx3m6us6L1qeP1_pD6s8hbJpIpD0a/view?usp=share_link</a>, 2012.</li> <li>Patrick-Gilles Maillot, "OSC Remote Control Documentation for WING", <a rel="nofollow" class="external free" href="https://mediadl.musictribe.com/download/software/behringer/WING/BE-P0BV2-WING-OSC-Documentation-0.59.pdf">https://mediadl.musictribe.com/download/software/behringer/WING/BE-P0BV2-WING-OSC-Documentation-0.59.pdf</a>, 2020.</li></ul> <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=Open_Sound_Control&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="http://opensoundcontrol.org/">Official website</a></span></span></li> <li><a rel="nofollow" class="external text" href="http://www.linuxjournal.com/content/introduction-osc">Introduction to OSC</a> at LinuxJournal</li> <li><a rel="nofollow" class="external text" href="https://github.com/fabb/SynOSCopy/wiki">SYN</a>, a standardized namespace within OSC</li> <li><a rel="nofollow" class="external text" href="https://github.com/pmaillot/X32-Behringer">X32-Behringer</a>, a collection of programs and tools for the X32 digital console, based on OSC</li> <li><a rel="nofollow" class="external text" href="https://sites.google.com/site/patrickmaillot/wing#h.xitnoyg1gpny">patrickmaillot/wing</a>, a collection of OSC based utilities for the WING personal digital mixing console</li> <li><a rel="nofollow" class="external text" href="https://sites.google.com/site/patrickmaillot/x32">patrickmaillot/x32</a>, a collection of OSC based utilities for the X32/M32 family of digital mixing consoles</li></ul>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?useformat=desktop&type=1x1&usesul3=0" alt="" width="1" height="1" style="border: none; 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