| CARVIEW |
Select Language
HTTP/2 200
content-type: text/html
x-guploader-uploadid: AAwnv3LaaGUGjE1eYOeQO12IE-KRLpg20t23gNZIk1KlJNY5ft9l0xlgyoe5KXyvuHomosqf
cache-control: public, max-age=3600
expires: Thu, 09 Oct 2025 08:37:39 GMT
last-modified: Thu, 09 Oct 2025 01:05:35 GMT
etag: W/"b5b1faf4e83fa14cb7d367a641c01240"
x-goog-generation: 1759971935435041
x-goog-metageneration: 1
x-goog-stored-content-encoding: identity
x-goog-stored-content-length: 138881
x-goog-meta-goog-reserved-file-mtime: 1759970435
x-goog-hash: crc32c=J7Ancw==, md5=tbH69Og/oUy302emQcASQA==
x-goog-storage-class: STANDARD
accept-ranges: none
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
alt-svc: clear
referrer-policy: strict-origin-when-cross-origin
x-content-type-options: nosniff
strict-transport-security: max-age=63072000
content-security-policy: default-src 'self'; script-src 'report-sample' 'self' 'wasm-unsafe-eval' https://www.google-analytics.com/analytics.js https://www.googletagmanager.com/gtag/js assets.codepen.io production-assets.codepen.io https://js.stripe.com 'sha256-XNBp89FG76amD8BqrJzyflxOF9PaWPqPqvJfKZPCv7M=' 'sha256-YCNoU9DNiinACbd8n6UPyB/8vj0kXvhkOni9/06SuYw=' 'sha256-PZjP7OR6mBEtnvXIZfCZ5PuOlxoDF1LDZL8aj8c42rw='; script-src-elem 'report-sample' 'self' 'wasm-unsafe-eval' https://www.google-analytics.com/analytics.js https://www.googletagmanager.com/gtag/js assets.codepen.io production-assets.codepen.io https://js.stripe.com 'sha256-XNBp89FG76amD8BqrJzyflxOF9PaWPqPqvJfKZPCv7M=' 'sha256-YCNoU9DNiinACbd8n6UPyB/8vj0kXvhkOni9/06SuYw=' 'sha256-PZjP7OR6mBEtnvXIZfCZ5PuOlxoDF1LDZL8aj8c42rw='; style-src 'report-sample' 'self' 'unsafe-inline'; object-src 'none'; base-uri 'self'; connect-src 'self' developer.allizom.org bcd.developer.allizom.org bcd.developer.mozilla.org updates.developer.allizom.org updates.developer.mozilla.org https://*.google-analytics.com https://*.analytics.google.com https://*.googletagmanager.com https://incoming.telemetry.mozilla.org https://observatory-api.mdn.allizom.net https://observatory-api.mdn.mozilla.net https://api.github.com/search/issues stats.g.doubleclick.net https://api.stripe.com; font-src 'self'; frame-src 'self' interactive-examples.mdn.mozilla.net interactive-examples.mdn.allizom.net mdn.github.io live-samples.mdn.mozilla.net live-samples.mdn.allizom.net *.mdnplay.dev *.mdnyalp.dev *.play.test.mdn.allizom.net https://v2.scrimba.com https://scrimba.com jsfiddle.net www.youtube-nocookie.com codepen.io survey.alchemer.com https://js.stripe.com; img-src 'self' data: *.githubusercontent.com *.googleusercontent.com *.gravatar.com mozillausercontent.com firefoxusercontent.com profile.stage.mozaws.net profile.accounts.firefox.com developer.mozilla.org mdn.dev interactive-examples.mdn.mozilla.net interactive-examples.mdn.allizom.net wikipedia.org upload.wikimedia.org https://mdn.github.io/shared-assets/ https://mdn.dev/ https://*.google-analytics.com https://*.googletagmanager.com www.gstatic.com; manifest-src 'self'; media-src 'self' archive.org videos.cdn.mozilla.net https://mdn.github.io/shared-assets/; child-src 'self'; worker-src 'self';
x-frame-options: DENY
origin-trial: AxVILwizhbMjxFeHOn1P3R8niO1RJY/smaK4B4d1rLzc1gTaxtXMSaTi+FoigYgCw40uFRDwFcEAeqDR+vVLOW4AAABfeyJvcmlnaW4iOiJodHRwczovL2RldmVsb3Blci5tb3ppbGxhLm9yZyIsImZlYXR1cmUiOiJQcml2YXRlQXR0cmlidXRpb25WMiIsImV4cGlyeSI6MTc0MjA3OTYwMH0=
x-cloud-trace-context: 1d816f9cd1a961f7b9d96459194b7d9b
date: Thu, 09 Oct 2025 07:37:39 GMT
server: Google Frontend
via: 1.1 google
vary: Accept-Encoding
content-encoding: gzip
x-cache: miss
MediaStreamAudioSourceNode: mediaStream property - Web APIs | MDN
Toggle sidebar
MediaStreamAudioSourceNode: mediaStream property
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2020.
The MediaStreamAudioSourceNode interface's
read-only mediaStream property indicates the
MediaStream that contains the audio track from which the node is
receiving audio.
This stream was specified when the node was first created,
either using the MediaStreamAudioSourceNode()
constructor or the AudioContext.createMediaStreamSource() method.
Value
A MediaStream representing the stream which contains the
MediaStreamTrack serving as the source of audio for the node.
The user agent uses the first audio track it finds on the specified
stream as the audio source for this node. However, there is no way to be certain which
track that will be on multi-track streams. If the specific track matters to you, or you
need to have access to the track itself, you should use a
MediaStreamTrackAudioSourceNode instead.
Examples
js
const audioCtx = new window.AudioContext();
let options = {
mediaStream: stream,
};
let source = new MediaStreamAudioSourceNode(audioCtx, options);
console.log(source.mediaStream);
Specifications
| Specification |
|---|
| Web Audio API # dom-mediastreamaudiosourcenode-mediastream |
Browser compatibility
Loading…