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class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_it.wikipedia.org&uselang=it" class=""><span>Fai una donazione</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Speciale:CreaUtenza&returnto=576i" title="Si consiglia di registrarsi e di effettuare l'accesso, anche se non è obbligatorio" class=""><span>registrati</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Speciale:Entra&returnto=576i" title="Si consiglia di effettuare l'accesso, anche se non è obbligatorio [o]" accesskey="o" class=""><span>entra</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Altre opzioni" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Strumenti personali" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " 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<span>registrati</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Speciale:Entra&returnto=576i" title="Si consiglia di effettuare l'accesso, anche se non è obbligatorio [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>entra</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Pagine per utenti anonimi <a href="/wiki/Aiuto:Benvenuto" aria-label="Ulteriori informazioni sulla contribuzione"><span>ulteriori informazioni</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Speciale:MieiContributi" title="Un elenco delle modifiche fatte da questo indirizzo IP [y]" accesskey="y"><span>contributi</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Speciale:MieDiscussioni" title="Discussioni sulle modifiche fatte da questo indirizzo IP [n]" accesskey="n"><span>discussioni</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Sito"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">576i</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Vai a una voce in un'altra lingua. Disponibile in 24 lingue" > <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-24" 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">24 lingue</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/576i" title="576i - arabo" lang="ar" hreflang="ar" data-title="576i" data-language-autonym="العربية" data-language-local-name="arabo" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/576i" title="576i - tedesco" lang="de" hreflang="de" data-title="576i" data-language-autonym="Deutsch" data-language-local-name="tedesco" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/576i" title="576i - inglese" lang="en" hreflang="en" data-title="576i" data-language-autonym="English" data-language-local-name="inglese" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/576i" title="576i - spagnolo" lang="es" hreflang="es" data-title="576i" data-language-autonym="Español" data-language-local-name="spagnolo" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%DB%B5%DB%B7%DB%B6%D8%A2%DB%8C" title="۵۷۶آی - persiano" lang="fa" hreflang="fa" data-title="۵۷۶آی" data-language-autonym="فارسی" data-language-local-name="persiano" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/576i" title="576i - francese" lang="fr" hreflang="fr" data-title="576i" data-language-autonym="Français" data-language-local-name="francese" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A5%AB%E0%A5%AD%E0%A5%AC%E0%A4%86%E0%A4%88" title="५७६आई - hindi" lang="hi" hreflang="hi" data-title="५७६आई" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/576i" title="576i - indonesiano" lang="id" hreflang="id" data-title="576i" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiano" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/576i" title="576i - giapponese" lang="ja" hreflang="ja" data-title="576i" data-language-autonym="日本語" data-language-local-name="giapponese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/576i" title="576i - coreano" lang="ko" hreflang="ko" data-title="576i" data-language-autonym="한국어" data-language-local-name="coreano" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/576i" title="576i - lettone" lang="lv" hreflang="lv" data-title="576i" data-language-autonym="Latviešu" data-language-local-name="lettone" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/576i" title="576i - malese" lang="ms" hreflang="ms" data-title="576i" data-language-autonym="Bahasa Melayu" data-language-local-name="malese" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/576i" title="576i - norvegese bokmål" lang="nb" hreflang="nb" data-title="576i" data-language-autonym="Norsk bokmål" data-language-local-name="norvegese bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/576i" title="576i - polacco" lang="pl" hreflang="pl" data-title="576i" data-language-autonym="Polski" data-language-local-name="polacco" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/576i" title="576i - portoghese" lang="pt" hreflang="pt" data-title="576i" data-language-autonym="Português" data-language-local-name="portoghese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/576i" title="576i - rumeno" lang="ro" hreflang="ro" data-title="576i" data-language-autonym="Română" data-language-local-name="rumeno" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/576i" title="576i - russo" lang="ru" hreflang="ru" data-title="576i" data-language-autonym="Русский" data-language-local-name="russo" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/576i" title="576i - Simple English" lang="en-simple" hreflang="en-simple" data-title="576i" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/576i" title="576i - turco" lang="tr" hreflang="tr" data-title="576i" data-language-autonym="Türkçe" data-language-local-name="turco" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/576i" title="576i - uzbeco" lang="uz" hreflang="uz" data-title="576i" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbeco" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vec mw-list-item"><a href="https://vec.wikipedia.org/wiki/576i" title="576i - veneto" lang="vec" hreflang="vec" data-title="576i" data-language-autonym="Vèneto" data-language-local-name="veneto" class="interlanguage-link-target"><span>Vèneto</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/576i" title="576i - vietnamita" lang="vi" hreflang="vi" data-title="576i" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamita" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/576i" title="576i - cinese" lang="zh" hreflang="zh" data-title="576i" data-language-autonym="中文" data-language-local-name="cinese" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/576i" title="576i - cantonese" lang="yue" hreflang="yue" data-title="576i" data-language-autonym="粵語" data-language-local-name="cantonese" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> <div class="after-portlet 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</nav> <nav class="vector-appearance-landmark" aria-label="Aspetto"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Aspetto</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">nascondi</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Da Wikipedia, l'enciclopedia libera.</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="it" dir="ltr"><style data-mw-deduplicate="TemplateStyles:r133964453">.mw-parser-output .avviso .mbox-text-div>div,.mw-parser-output .avviso .mbox-text-full-div>div{font-size:90%}.mw-parser-output .avviso .mbox-image{flex-basis:52px;flex-grow:0;flex-shrink:0}.mw-parser-output .avviso .mbox-text-full-div .hide-when-compact{display:block}</style><div style="" class="ambox metadata plainlinks avviso avviso-contenuto"> <div class="avviso-immagine mbox-image noprint"><span typeof="mw:File"><a href="/wiki/File:Question_book-4.svg" class="mw-file-description" title="Niente fonti!"><img alt="Niente fonti!" src="//upload.wikimedia.org/wikipedia/commons/thumb/6/64/Question_book-4.svg/45px-Question_book-4.svg.png" decoding="async" width="45" height="35" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/64/Question_book-4.svg/68px-Question_book-4.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/64/Question_book-4.svg/90px-Question_book-4.svg.png 2x" data-file-width="262" data-file-height="204" /></a></span></div> <div class="avviso-testo mbox-text"> <div class="mbox-text-div"><b>Questa voce o sezione  sull'argomento tecnologia audiovideo <a href="/wiki/Wikipedia:Uso_delle_fonti" title="Wikipedia:Uso delle fonti">non cita le fonti necessarie</a> o quelle presenti sono insufficienti</b>. <div class="hide-when-compact"> <div class="noprint"><hr />Puoi <a class="external text" href="https://it.wikipedia.org/w/index.php?title=576i&action=edit">migliorare questa voce</a> aggiungendo citazioni da <a href="/wiki/Wikipedia:Fonti_attendibili" title="Wikipedia:Fonti attendibili">fonti attendibili</a> secondo le <a href="/wiki/Wikipedia:Uso_delle_fonti" title="Wikipedia:Uso delle fonti">linee guida sull'uso delle fonti</a>. </div> </div> </div> </div> </div> <p>Il termine <b>576i</b> identifica una serie di formati standard di segnali video relativi alla <a href="/wiki/Televisione_digitale" title="Televisione digitale">TV digitale</a> e <a href="/wiki/Televisione_analogica" title="Televisione analogica">analogica</a> (nei paesi che adottano <a href="/wiki/PAL_(televisione)" title="PAL (televisione)">PAL</a> e <a href="/wiki/S%C3%89CAM" title="SÉCAM">SÉCAM</a>) a definizione standard (<a href="/wiki/SDTV" title="SDTV">SDTV</a>). </p> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Common_Video_Resolutions.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Common_Video_Resolutions.svg/510px-Common_Video_Resolutions.svg.png" decoding="async" width="510" height="356" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Common_Video_Resolutions.svg/765px-Common_Video_Resolutions.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/98/Common_Video_Resolutions.svg/1020px-Common_Video_Resolutions.svg.png 2x" data-file-width="2150" data-file-height="1500" /></a><figcaption>Differenze tra formati video <a href="/wiki/480i" title="480i">480i</a>, <a href="/wiki/Televisione_a_definizione_avanzata" title="Televisione a definizione avanzata">480p</a>, 576i, <a href="/wiki/576p" title="576p">576p</a>, <a href="/wiki/720p" title="720p">720p</a>, <a href="/wiki/1080i" title="1080i">1080i</a> e <a href="/wiki/1080p" title="1080p">1080p</a></figcaption></figure> <p>Nella notazione, sono indicate <i>576</i> linee verticali e la <a href="/wiki/Scansione_interlacciata" title="Scansione interlacciata">scansione interlacciata</a>, cioè non <a href="/wiki/Scansione_progressiva" title="Scansione progressiva">progressiva</a>. </p><p>La risoluzione in larghezza del video digitale, invece, è di solito di <i>704</i> (<a href="/wiki/Pixel_aspect_ratio" title="Pixel aspect ratio">PAR</a>=1,09:1), <i>720</i> (PAR=1,066:1) o <i>768</i> (PAR=1:1) colonne nel <a href="/wiki/Rapporto_d%27aspetto" title="Rapporto d'aspetto">rapporto d'aspetto</a> 4:3 (<a href="/wiki/Fullscreen" title="Fullscreen">Fullscreen</a>) e di <i>1024</i> (PAR=1:1) colonne nel rapporto d'aspetto 16:9 (<a href="/wiki/Widescreen" title="Widescreen">Widescreen</a>). </p><p>La frequenza di semiquadro del 576i, di 50 <a href="/wiki/Hertz" title="Hertz">Hz</a>, è talvolta inclusa nella notazione, che diventa <b>576/50i</b> o <b>576i50</b>. Di conseguenza il <a href="/wiki/Frame_rate" class="mw-redirect" title="Frame rate">frame rate</a> del 576i50 è di 25 fotogrammi al secondo. </p><p>Questo formato video può essere trasmesso tramite i maggiori standard di televisione digitale, come <a href="/wiki/ATSC" title="ATSC">ATSC</a> e <a href="/wiki/Digital_Video_Broadcasting" title="Digital Video Broadcasting">DVB</a>, ed è impiegato anche nei <a href="/wiki/DVD" title="DVD">DVD</a> e nelle <a href="/wiki/Digital_Video" title="Digital Video">DV</a> di tipo <a href="/wiki/PAL_(televisione)" title="PAL (televisione)">PAL</a>. Sia i DVD sia le DV di tipo PAL supportano i rapporti d'aspetto Fullscreen e <a href="/wiki/Widescreen_anamorfico" title="Widescreen anamorfico">Widescreen anamorfico</a>. </p><p>Dagli <a href="/wiki/Anni_2000" title="Anni 2000">anni 2000</a>, il 576i sta venendo nella TV digitale lentamente sostituito dal <a href="/wiki/720p" title="720p">720p</a> (HD), dal <a href="/wiki/1080p" title="1080p">1080p</a> (Full HD) e dal <a href="/wiki/1080i" title="1080i">1080i</a>, formati video <a href="/wiki/HDTV" title="HDTV">HDTV</a> che permettono una definizione superiore. </p> <div class="noprint" style="width:100%; padding: 3px 0; display: flex; flex-wrap: wrap; row-gap: 4px; column-gap: 8px; box-sizing: border-box;"><div style="flex-grow: 1"><style data-mw-deduplicate="TemplateStyles:r140555418">.mw-parser-output .itwiki-template-occhiello{width:100%;line-height:25px;border:1px solid #CCF;background-color:#F0EEFF;box-sizing:border-box}.mw-parser-output .itwiki-template-occhiello-progetto{background-color:#FAFAFA}@media screen{html.skin-theme-clientpref-night .mw-parser-output .itwiki-template-occhiello{background-color:#202122;border-color:#54595D}html.skin-theme-clientpref-night .mw-parser-output .itwiki-template-occhiello-progetto{background-color:#282929}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .itwiki-template-occhiello{background-color:#202122;border-color:#54595D}html.skin-theme-clientpref-os .mw-parser-output .itwiki-template-occhiello-progetto{background-color:#282929}}</style><div class="itwiki-template-occhiello"><span class="noviewer" typeof="mw:File"><a href="/wiki/File:TV-icon-2.svg" class="mw-file-description" title="Televisione"><img alt=" " src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b6/TV-icon-2.svg/25px-TV-icon-2.svg.png" decoding="async" width="25" height="17" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b6/TV-icon-2.svg/38px-TV-icon-2.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b6/TV-icon-2.svg/50px-TV-icon-2.svg.png 2x" data-file-width="138" data-file-height="96" /></a></span> <b><a href="/wiki/Portale:Televisione" title="Portale:Televisione">Portale Televisione</a></b>: accedi alle voci di Wikipedia che trattano di televisione</div></div></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Estratto da "<a dir="ltr" href="https://it.wikipedia.org/w/index.php?title=576i&oldid=142159774">https://it.wikipedia.org/w/index.php?title=576i&oldid=142159774</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Categoria:Categorie" title="Categoria:Categorie">Categoria</a>: <ul><li><a href="/wiki/Categoria:Tecnologia_televisiva" title="Categoria:Tecnologia televisiva">Tecnologia televisiva</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Categorie nascoste: <ul><li><a href="/wiki/Categoria:Senza_fonti_-_tecnologia_audiovideo" title="Categoria:Senza fonti - tecnologia audiovideo">Senza fonti - tecnologia audiovideo</a></li><li><a href="/wiki/Categoria:Senza_fonti_-_settembre_2016" title="Categoria:Senza fonti - settembre 2016">Senza fonti - settembre 2016</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Questa pagina è stata modificata per l'ultima volta il 14 nov 2024 alle 10:34.</li> <li id="footer-info-copyright">Il testo è disponibile secondo la <a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.it">licenza Creative Commons Attribuzione-Condividi allo stesso modo</a>; possono applicarsi condizioni ulteriori. 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