BaseAudioContext.sampleRate

The sampleRate property of the BaseAudioContext interface returns a floating point number representing the sample rate, in samples per second, used by all nodes in this audio context. This limitation means that sample-rate converters are not supported.

Syntax

baseAudioContext.sampleRate;

Value

A floating point number indicating the audio context's sample rate, in samples per second.

Example

Note: for a full Web Audio example implementation, see one of our Web Audio Demos on the MDN Github repo, like panner-node. Try entering audioCtx.sampleRate into your browser console.

var AudioContext = window.AudioContext || window.webkitAudioContext;
var audioCtx = new AudioContext();
// Older webkit/blink browsers require a prefix

...

console.log(audioCtx.sampleRate);

Specifications

Specification Status Comment
Web Audio API
The definition of 'sampleRate' in that specification.
Working Draft Ā 

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
sampleRateChrome Full support 10
Prefixed
Full support 10
Prefixed
Prefixed Implemented with the vendor prefix: webkit
Edge Full support YesFirefox Full support 53
Notes
Full support 53
Notes
Notes Originally implemented on AudioContext in Firefox 25.
IE No support NoOpera Full support 22
Full support 22
Full support 15
Prefixed
Prefixed Implemented with the vendor prefix: webkit
Safari Full support 6
Prefixed
Full support 6
Prefixed
Prefixed Implemented with the vendor prefix: webkit
WebView Android Full support YesChrome Android Full support 33Firefox Android Full support 53
Notes
Full support 53
Notes
Notes Originally implemented on AudioContext in Firefox Android 26.
Opera Android Full support 22
Full support 22
Full support 14
Prefixed
Prefixed Implemented with the vendor prefix: webkit
Safari iOS No support NoSamsung Internet Android Full support Yes

Legend

Full support Ā 
Full support
No support Ā 
No support
See implementation notes.
See implementation notes.
Requires a vendor prefix or different name for use.
Requires a vendor prefix or different name for use.

See also