This page is Ready to Use

Notice: The WebPlatform project, supported by various stewards between 2012 and 2015, has been discontinued. This site is now available on github.

playbackRate

Summary

The speed at which to render the audio stream. The default playbackRate value is 1. This parameter is a-rate.

Property of apis/webaudio/AudioBufferSourceNodeapis/webaudio/AudioBufferSourceNode

Syntax

var result = AudioBufferSourceNode.playbackRate;
AudioBufferSourceNode.playbackRate = value;

Return Value

Returns an object of type

AudioParam

Examples

var source = audioCtx.createBufferSource();
// play 25% faster than normal speed (1.0)
source.playbackRate.value = 1.25;

Related specifications

Web Audio API
W3C Editor’s Draft