HTML <audio> 요소는 문서에 소리 콘텐츠를 포함할 때 사용합니다. src 특성 또는 {{htmlelement("source")}} 요소를 사용해 한 개 이상의 오디오 소스를 지정할 수 있으며, 다수를 지정한 경우 가장 적절한 소스를 브라우저가 고릅니다. {{domxref("MediaStream")}}을 사용하면 미디어 스트림을 바라볼 수도 있습니다.
<audio>
src
이 요소는 전역 특성을 포함합니다.
anonymous
Origin:
Access-Control-Allow-Origin:
use-credentials
Reading currentTime returns a double-precision floating-point value indicating the current playback position, in seconds, of the audio. If the audio's metadata isn't available yet—thereby preventing you from knowing the media's start time or duration—currentTime instead indicates, and can be used to change, the time at which playback will begin. Otherwise, setting currentTime sets the current playback position to the given time and seeks the media to that position if the media is currently loaded.
currentTime
If the audio is being streamed, it's possible that the {{Glossary("user agent")}} may not be able to obtain some parts of the resource if that data has expired from the media buffer. Other audio may have a media timeline that doesn't start at 0 seconds, so setting currentTime to a time before that would fail. For example, if the audio's media timeline starts at 12 hours, setting currentTime to 3600 would be an attempt to set the current playback position well before the beginning of the media, and would fail. The {{domxref("HTMLMediaElement.getStartDate", "getStartDate()")}} method can be used to determine the beginning point of the media timeline's reference frame.
In Safari, you can use x-webkit-airplay="deny" as a fallback.
x-webkit-airplay="deny"
NaN
+Infinity
false
none
metadata
auto
The default value is different for each browser. The spec advises it to be set to metadata.
autoplay
preload
Time offsets are specified as float values indicating the number of seconds to offset.
duration
load()
Browsers don't all support the same file types and audio codecs; you can provide multiple sources inside nested {{htmlelement("source")}} elements, and the browser will then use the first one it understands:
<audio controls> <source src="myAudio.mp3" type="audio/mpeg"> <source src="myAudio.ogg" type="audio/ogg"> <p>Your browser doesn't support HTML5 audio. Here is a <a href="myAudio.mp4">link to the audio</a> instead.</p> </audio>
We offer a substantive and thorough guide to media file types and the audio codecs that can be used within them. Also available is a guide to the codecs supported for video.
Other usage notes:
controls
HTMLMediaElement
<video>
A good general source of information on using HTML <audio> is the Video and audio content beginner's tutorial.
The <audio> element has no intrinsic visual output of its own unless the controls attribute is specified, in which case the browser's default controls are shown.
The default controls have a {{cssxref("display")}} value of inline by default, and it is often a good idea set the value to block to improve control over positioning and layout, unless you want it to sit within a text block or similar.
inline
block
You can style the default controls with properties that affect the block as a single unit, so for example you can give it a {{cssxref("border")}} and {{cssxref("border-radius")}}, {{cssxref("padding")}}, {{cssxref("margin")}}, etc. You can't however style the individual components inside the audio player (e.g. change the button size or icons, change the font, etc.), and the controls are different across the different browsers.
To get a consistent look and feel across browsers, you'll need to create custom controls; these can be marked up and styled in whatever way you want, and then JavaScript can be used along with the {{domxref("HTMLMediaElement")}} API to wire up their functionality.
Video player styling basics provides some useful styling techniques — it is written in the context of <video>, but much of it is equally applicable to <audio>.
You can detect when tracks are added to and removed from an <audio> element using the {{event("addtrack")}} and {{event("removetrack")}} events. However, these events aren't sent directly to the <audio> element itself. Instead, they're sent to the track list object within the <audio> element's {{domxref("HTMLMediaElement")}} that corresponds to the type of track that was added to the element:
addtrack
Note: Even though it's an <audio> element, it still has video and text track lists, and can in fact be used to present video, although the use interface implications can be odd.
For example, to detect when audio tracks are added to or removed from an <audio> element, you can use code like this:
var elem = document.querySelector("audio"); elem.audioTrackList.onaddtrack = function(event) { trackEditor.addTrack(event.track); }; elem.audioTrackList.onremovetrack = function(event) { trackEditor.removeTrack(event.track); };
This code watches for audio tracks to be added to and removed from the element, and calls a hypothetical function on a track editor to register and remove the track from the editor's list of available tracks.
You can also use {{domxref("EventTarget.addEventListener", "addEventListener()")}} to listen for the {{event("addtrack")}} and {{event("removetrack")}} events.
The following example shows simple usage of the <audio> element to play an OGG file. It will autoplay due to the autoplay attribute—if the page has permission to do so—and also includes fallback content.
<!-- Simple audio playback --> <audio src="AudioTest.ogg" autoplay> Your browser does not support the <code>audio</code> element. </audio>
For details on when autoplay works, how to get permission to use autoplay, and how and when it's appropriate to use autoplay, see our autoplay guide.
This example specifies which audio track to embed using the src attribute on a nested <source> element rather than directly on the <audio> element. It is always useful to include the file's MIME type inside the type attribute, as the browser is able to instantly tell if it can play that file, and not waste time on it if not.
<source>
type
<audio controls> <source src="foo.wav" type="audio/wav"> Your browser does not support the <code>audio</code> element. </audio>
This example includes multiple <source> elements. The browser tries to load the first source element (Opus) if it is able to play it; if not it falls back to the second (Vorbis) and finally back to MP3:
<audio controls> <source src="foo.opus" type="audio/ogg; codecs=opus"/> <source src="foo.ogg" type="audio/ogg; codecs=vorbis"/> <source src="foo.mp3" type="audio/mpeg"/> </audio>
Audio with spoken dialog should provide both captions and transcripts that accurately describe its content. Captions, which are specified using WebVTT, allow people who are experiencing hearing loss to understand an audio recording's content as the recording is being played, while transcripts allow people who need additional time to be able to review the recording's content at a pace and format that is comfortable for them.
If automatic captioning services are used, it is important to review the generated content to ensure it accurately represents the source audio.
The <audio> element doesn't directly support WebVTT. You will have to find a library or framework that provides the capability for you, or write the code to display captions yourself. One option is to play your audio using a {{HTMLElement("video")}} element, which does support WebVTT.
In addition to spoken dialog, subtitles and transcripts should also identify music and sound effects that communicate important information. This includes emotion and tone. For example, in the WebVTT below, note the use of square brackets to provide tone and emotional insight to the viewer; this can help establish the mood otherwise provided using music, nonverbal sounds and crucial sound effects, and so forth.
1 00:00:00 --> 00:00:45 [Energetic techno music] 2 00:00:46 --> 00:00:51 Welcome to the Time Keeper's podcast! In this episode we're discussing which Swisswatch is a wrist switchwatch? 16 00:00:52 --> 00:01:02 [Laughing] Sorry! I mean, which wristwatch is a Swiss wristwatch?
Also it's a good practice to provide some content (such as the direct download link) as a fallback for viewers who use a browser in which the <audio> element is not supported:
<audio controls> <source src="myAudio.mp3" type="audio/mpeg"> <source src="myAudio.ogg" type="audio/ogg"> <p> Your browser doesn't support HTML5 audio. Here is a <a href="myAudio.mp4">link to download the audio</a> instead. </p> </audio>
{{htmlattrxref("src", "audio")}} 특성을 가진 경우 0개 이상의 {{htmlelement("track")}} 요소와 그 이후의 투명한 콘텐츠. 단, 다른 {{htmlelement("audio")}}와 {{htmlelement("video")}} 요소는 불가능.
그 외의 경우 0개 이상의 {{HTMLElement("source")}} 요소와 0개 이상의 {{HTMLElement("track")}} 요소, 그리고 이후의 투명한 콘텐츠. 단, 다른 {{htmlelement("audio")}}와 {{htmlelement("video")}} 요소는 불가능.
{{Compat("html.elements.audio")}}