Detect if is playing audio</a></h1> </div> <div class="grid fw-wrap pb8 mb16 bb bc-black-075"> <div class="grid--cell ws-nowrap mr16 mb8" title="2016-01-12 19:07:53Z"> <span class="fc-light mr2">Asked</span> <time itemprop="dateCreated" datetime="2020-03-17T14:37:47.390" class="fromnow">Mar 17 '20 at 14:37</time> </div> <div class="grid--cell ws-nowrap mr16 mb8"> <span class="fc-light mr2">Active</span> <time class="fromnow" title="2020-06-11T13:00:59.620" datetime="2020-06-11T13:00:59.620">Jun 11 '20 at 13:00</a> </div> <div class="grid--cell ws-nowrap mb8" title="Viewed 1,541 times"> <span class="fc-light mr2">Viewed</span> 1,541 times </div> </div> <div id="mainbar" role="main" aria-label="questions and answers"> <div id="question" class="question" data-questionid="60724574" data-ownerid="270274" data-score="6"> <div class="post-layout"> <div class="votecell post-layout--left"> <div class="js-voting-container grid jc-center fd-column ai-stretch gs4 fc-black-200" data-post-id="60724574"> <button class="js-vote-up-btn grid--cell s-btn s-btnunset c-pointer"><svg aria-hidden="true" class="m0 svg-icon iconArrowUpLg" width="36" height="36" viewBox="0 0 36 36"><path d="M2 26h32L18 10 2 26z"></path></svg></button> <div class="js-vote-count grid--cell fc-black-500 fs-title grid fd-column ai-center" itemprop="upvoteCount" data-value="6">6</div> <button class="js-bookmark-btn s-btn s-btnunset c-pointer py4"> <svg aria-hidden="true" class="svg-icon iconBookmark" width="18" height="18" viewBox="0 0 18 18"><path d="M6 1a2 2 0 00-2 2v14l5-4 5 4V3a2 2 0 00-2-2H6zm3.9 3.83h2.9l-2.35 1.7.9 2.77L9 7.59l-2.35 1.7.9-2.76-2.35-1.7h2.9L9 2.06l.9 2.77z"></path></svg> <div class="js-bookmark-count mt4" data-value="0">0</div> </button> </div> </div> <div class="postcell post-layout--right"> <div class="s-prose js-post-body" itemprop="text"><p><strong>Question</strong></p> <p>I'd like to know whether an <code><iframe></code> that is embedded in my website is playing audio.</p> <p>Ideally as well how "loud" the <code><iframe></code> is playing the audio but that's optional.</p> <p>Note that the <code><iframe></code> is not on the same origin, hence inspecting the <code><iframe></code> is not an option.</p> <p><strong>My Concrete Use Case</strong></p> <p>I'm the developer of <a class="external-link" href="https://www.timer-tab.com/" rel="noreferrer">https://www.timer-tab.com/</a> and when the time is up a YouTube video starts playing. The YouTube video is playing in an <code><iframe></code>. I'd like to know whether the YouTube <code><iframe></code> is emitting any sound. If it doesn't emit any sound, a fallback sound is played using the Web Audio API. (The YouTube <code><iframe></code> sometimes doesn't emit sound. For example, when the user has set his YouTube volume setting to mute. Unfortunately, it is not possible to get that information by <code>postMessage</code>ing the YouTube <code><iframe></code>.)</p> <p><strong>Related Question</strong></p> <p><a href="../../questions/29632647/detect-if-audio-is-playing-in-browser-javascript">Detect if audio is playing in browser Javascript</a>.</p> <p>This is not a duplicated; my question asks specifically for <code><iframe></code> audio detection whereas the related questions asks for <em>all audio</em> detection.</p></div> <div class="mt24 mb12"> <div class="post-taglist grid gs4 gsy fd-column"> <div class="grid ps-relative"> <a href="../../questions/tagged/javascript" class="post-tag js-gps-track" title="show questions tagged 'javascript'" rel="tag">javascript</a> <a href="../../questions/tagged/web" class="post-tag js-gps-track" title="show questions tagged 'web'" rel="tag">web</a> <a href="../../questions/tagged/audio" class="post-tag js-gps-track" title="show questions tagged 'audio'" rel="tag">audio</a> <a href="../../questions/tagged/iframe" class="post-tag js-gps-track" title="show questions tagged 'iframe'" rel="tag">iframe</a> <a href="../../questions/tagged/web-deployment" class="post-tag js-gps-track" title="show questions tagged 'web-deployment'" rel="tag">web-deployment</a> </div> </div> </div> <div class="mb0"> <div class="mt16 grid gs8 gsy fw-wrap jc-end ai-start pt4 mb16"> <div class="grid--cell mr16 fl1 w96"></div> <div class="post-signature grid--cell"> <div class="user-info "> <div class="user-action-time">edited <span title="2020-06-05T11:03:24.607" class="relativetime">Jun 05 '20 at 11:03</span></div> <div class="user-gravatar32"></div> <div class="user-details" itemprop="author" itemscope="" itemtype="http://schema.org/Person"> <span class="d-none" itemprop="name">brillout</span> <div class="-flair"></div> </div> </div> </div> <div class="post-signature owner grid--cell"> <div class="s-user-card s-user-card"> <time class="s-user-card--time" datetime="asked Mar 17 '20 at 14:37">asked Mar 17 '20 at 14:37</time> <a href="../../users/270274/brillout" class="s-avatar s-avatar32 s-user-card--avatar"> <img class="s-avatar--image" src="../../users/profiles/270274.webp" data-jdenticon-width="32" data-jdenticon-height="32" data-jdenticon-value="brillout" /> </a> <div class="s-user-card--info"> <a href="../../users/270274/brillout" class="s-user-card--link">brillout</a> <ul class="s-user-card--awards"> <li class="s-user-card--rep" title="reputation score">7,804</li> <li class="s-award-bling s-award-blinggold" title="11 gold badges">11</li> <li class="s-award-bling s-award-blingsilver" title="72 silver badges">72</li> <li class="s-award-bling s-award-blingbronze" title="84 bronze badges">84</li> </ul> </div> </div> </div> </div> </div> </div> <div class="post-layout--right js-post-comments-component"> <div id="comments-60724574" class="comments js-comments-container bt bc-black-075 mt12 " data-post-id="60724574" data-min-length="15"> <ul class="comments-list js-comments-list" data-remaining-comments-count="0" data-canpost="false" data-cansee="true" data-comments-unavailable="false" data-addlink-disabled="true"> <li id="comment-110227942" class="comment js-comment " data-comment-id="110227942" data-comment-owner-id="1820097" data-comment-score="0"> <div class="js-comment-actions comment-actions"> <div class="comment-score js-comment-edit-hide"> </div> </div> <div class="comment-text js-comment-text-and-form"> <a name="comment110227942_60724574"></a> <div class="comment-body js-comment-edit-hide"> <span class="comment-copy">Is it an option to control the volume yourself? You could if you control the way you embed it.</span> – <a href="../../users/1820097/dan-ovidiu-boncut" title="3,083 reputation" class="comment-user ">Dan Ovidiu Boncut</a> <span class="comment-date" dir="ltr"><a class="comment-link" href="../../questions/60724574/detect-if-iframe-is-playing-audio#comment110227942_60724574"><span title="2020-06-11T13:11:48.620 License: CC BY-SA 4.0" class="relativetime-clean">Jun 11 '20 at 13:11</span></a></span> </div> </div> </li> </ul> </div> </div> </div> </div> <div id="answers"> <a name="tab-top"></a> <div id="answers-header"> <div class="answers-subheader grid ai-center mb8"> <div class="grid--cell fl1"> <h2 class="mb0" data-answercount="9">2 Answers<span style="display:none;" itemprop="answerCount">2</span></h2> </div> </div> </div> <a name="62325038"></a> <div id="answer-62325038" class="answer " data-answerid="62325038" data-ownerid="13569927" data-score="3" itemprop="suggestedAnswer" itemscope="" itemtype="https://schema.org/Answer"> <div class="post-layout"> <div class="votecell post-layout--left"> <div class="js-voting-container grid jc-center fd-column ai-stretch gs4 fc-black-200" data-post-id="62325038"> <button class="js-vote-up-btn grid--cell s-btn s-btnunset c-pointer"><svg aria-hidden="true" class="m0 svg-icon iconArrowUpLg" width="36" height="36" viewBox="0 0 36 36"><path d="M2 26h32L18 10 2 26z"></path></svg></button> <div class="js-vote-count grid--cell fc-black-500 fs-title grid fd-column ai-center" itemprop="upvoteCount" data-value="3">3</div> </div> </div> <div class="postcell post-layout--right"> <div class="s-prose js-post-body" itemprop="text"><p>Unless the API allows it. For security reasons, you cannot.</p></div> <div class="mb0"> <div class="mt16 grid gs8 gsy fw-wrap jc-end ai-start pt4 mb16"> <div class="grid--cell mr16 fl1 w96"></div> <div class="post-signature grid--cell"> <div class="s-user-card s-user-card"> <time class="s-user-card--time" datetime="answered Jun 11 '20 at 13:00">answered Jun 11 '20 at 13:00</time> <a href="../../users/13569927/camille" class="s-avatar s-avatar32 s-user-card--avatar"> <img class="s-avatar--image" src="../../users/profiles/13569927.webp" data-jdenticon-width="32" data-jdenticon-height="32" data-jdenticon-value="Camille" /> </a> <div class="s-user-card--info"> <a href="../../users/13569927/camille" class="s-user-card--link">Camille</a> <ul class="s-user-card--awards"> <li class="s-user-card--rep" title="reputation score">121</li> <li class="s-award-bling s-award-bling__bronze" title="4 bronze badges">4</li> </ul> </div> </div> </div> </div> </div> </div> <div class="post-layout--right js-post-comments-component"> <div id="comments-62325038" class="comments js-comments-container bt bc-black-075 mt12 " data-post-id="62325038" data-min-length="15"> <ul class="comments-list js-comments-list" data-remaining-comments-count="0" data-canpost="false" data-cansee="true" data-comments-unavailable="false" data-addlink-disabled="true"> <li id="comment-110227722" class="comment js-comment " data-comment-id="110227722" data-comment-owner-id="362536" data-comment-score="1"> <div class="js-comment-actions comment-actions"> <div class="comment-score js-comment-edit-hide"> <span title="number of 'useful comment' votes received" class="warm">1</span> </div> </div> <div class="comment-text js-comment-text-and-form"> <a name="comment110227722_62325038"></a> <div class="comment-body js-comment-edit-hide"> <span class="comment-copy">This is the correct answer. The only way this is possible is if the content of the iframe were running its own Web Audio graph, with its built-in analyser node, and then relayed to the other frame via postMessage or similar.</span> – <a href="../../users/362536/brad" title="159,648 reputation" class="comment-user ">Brad</a> <span class="comment-date" dir="ltr"><a class="comment-link" href="../../questions/60724574/detect-if-iframe-is-playing-audio#comment110227722_62325038"><span title="2020-06-11T13:04:57.217 License: CC BY-SA 4.0" class="relativetime-clean">Jun 11 '20 at 13:04</span></a></span> </div> </div> </li> </ul> </div> </div> </div> </div> <a name="62299190"></a> <div id="answer-62299190" class="answer " data-answerid="62299190" data-ownerid="260411" data-score="0" itemprop="suggestedAnswer" itemscope="" itemtype="https://schema.org/Answer"> <div class="post-layout"> <div class="votecell post-layout--left"> <div class="js-voting-container grid jc-center fd-column ai-stretch gs4 fc-black-200" data-post-id="62299190"> <button class="js-vote-up-btn grid--cell s-btn s-btn__unset c-pointer"><svg aria-hidden="true" class="m0 svg-icon iconArrowUpLg" width="36" height="36" viewBox="0 0 36 36"><path d="M2 26h32L18 10 2 26z"></path></svg></button> <div class="js-vote-count grid--cell fc-black-500 fs-title grid fd-column ai-center" itemprop="upvoteCount" data-value="0">0</div> </div> </div> <div class="postcell post-layout--right"> <div class="s-prose js-post-body" itemprop="text"><p>This may not answer your question by the title (which I don't think is even possible), but it may solve your underlying problem. You could use <strong>YouTube's JavaScript API</strong> to detect if the audio is muted or just unmute it if desired:</p> <p></p><div class="snippet" data-babel="false" data-console="true" data-hide="false" data-lang="js"> <div class="snippet-code"> <pre class="snippet-code-js lang-js prettyprint-override"><code>var tag = document.createElement('script'); tag.src = "https://www.youtube.com/iframe_api"; var firstScriptTag = document.getElementsByTagName('script')[0]; firstScriptTag.parentNode.insertBefore(tag, firstScriptTag); var player; function onYouTubeIframeAPIReady() { player = new YT.Player('ytplayer', { events: { 'onReady': onPlayerReady, 'onStateChange': onPlayerStateChange } }); } function onPlayerReady(event) { event.target.playVideo(); } function onPlayerStateChange(event) { if (event.data == YT.PlayerState.PLAYING) { console.log("isMuted = " + event.target.isMuted()); event.target.unMute(); event.target.setVolume(100); } }</code></pre> <pre class="snippet-code-html lang-html prettyprint-override"><code><iframe id="ytplayer" type="text/html" src="https://www.youtube.com/embed/dQw4w9WgXcQ?controls=0&showinfo=0&rel=0&enablejsapi=1" frameborder="0"></iframe></code></pre> </div> </div> <p>Note that this snippet won't run properly on StackOverflow because it does not allow <code>iframe</code> elements. I tested it locally and it worked though.</p> <p>You can find more information in the documentation (<a class="external-link" href="https://developers.google.com/youtube/iframe_api_reference" rel="nofollow noreferrer">YouTube Player API Reference for iframe Embeds</a>), such as configuration properties and all the functions available.</p></div> <div class="mb0"> <div class="mt16 grid gs8 gsy fw-wrap jc-end ai-start pt4 mb16"> <div class="grid--cell mr16 fl1 w96"></div> <div class="post-signature grid--cell"> <div class="s-user-card s-user-card"> <time class="s-user-card--time" datetime="answered Jun 10 '20 at 08:33">answered Jun 10 '20 at 08:33</time> <a href="../../users/260411/toribio" class="s-avatar s-avatar32 s-user-card--avatar"> <img class="s-avatar--image" src="../../users/profiles/260411.webp" data-jdenticon-width="32" data-jdenticon-height="32" data-jdenticon-value="Toribio" /> </a> <div class="s-user-card--info"> <a href="../../users/260411/toribio" class="s-user-card--link">Toribio</a> <ul class="s-user-card--awards"> <li class="s-user-card--rep" title="reputation score">3,963</li> <li class="s-award-bling s-award-blinggold" title="3 gold badges">3</li> <li class="s-award-bling s-award-blingsilver" title="34 silver badges">34</li> <li class="s-award-bling s-award-blingbronze" title="48 bronze badges">48</li> </ul> </div> </div> </div> </div> </div> </div> <div class="post-layout--right js-post-comments-component"> </div> </div> </div> </div> </div> </div> </div> <script src="../../static/js/stack-icons.js"></script> <script src="../../static/js/fromnow.js"></script> </body> </html>