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AudioContext.sampleRate

The sampleRate property of the AudioContext 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

var audioCtx = new AudioContext();
var mySampleRate = audioCtx.sampleRate;

Value

A floating point number.

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

Browser compatibility

Feature	Chrome	Edge	Firefox (Gecko)	Internet Explorer	Opera	Safari (WebKit)
Basic support	10.0webkit	(Yes)	25.0 (25.0)	No support	15.0webkit 22 (unprefixed)	6.0webkit