The AudioBufferSourceNode()
constructor creates a new AudioBufferSourceNode
object instance.
var audioBufferSourceNode = new AudioBufferSourceNode(context, options)
Inherits parameters from the AudioNodeOptions
dictionary.
AudioContext
.buffer
: An instance of AudioBuffer
to be played.detune
: A value in cents to modulate the speed of audio stream rendering. Its nominal range is (-∞, ∞). The default is 0
.loop
: A boolean indicating whether the audio should play in a loop. The default is false
. If the loop is dynamically modified during playback, the new value will take effect on the next processing block of audio.loopEnd
: An optional value, in seconds, where looping should end if the loop attribute is true
. The default is 0
. Its value is exclusive to the content of the loop. The sample frames, comprising the loop, run from the values loopStart
to loopEnd
-(1/sampleRate
). It's sensible to set this to a value between 0 and the duration of the buffer. If loopEnd
is less than 0, looping will end at 0. If loopEnd
is greater than the duration of the buffer, looping will end at the end of the buffer. This attribute is converted to an exact sample frame offset within the buffer, by multiplying by the buffer's sample rate and rounding to the nearest integer value. Thus, its behavior is independent of the value of the playbackRate
parameter.loopStart
: An optional value in seconds, where looping should end if the loop attribute is true
. The default is 0
. It's sensible to set this to a value between 0 and the duration of the buffer. If loopStart
is less than 0, looping will begin at 0. If loopStart
is greater than the duration of the buffer, looping will begin at the end of the buffer. This attribute is converted to an exact sample frame offset within the buffer, by multiplying by the buffer's sample rate and rounding to the nearest integer value. Thus, its behavior is independent of the value of the playbackRate
parameter.playbackRate
: The speed at which to render the audio stream. Its default value is 1
. This parameter is k-rate. This is a compound parameter with detune. Its nominal range is (-∞, ∞).A new AudioBufferSourceNode
object instance.
Specification | Status | Comment |
---|---|---|
Web Audio API The definition of 'AudioBufferSourceNode()' in that specification. | Working Draft | Initial definition. |
Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | 551 | ? | 53 | No | 42 | ? |
Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | IE mobile | Opera Android | iOS Safari |
---|---|---|---|---|---|---|---|
Basic support | 551 | 551 | ? | 53 | No | 42 | ? |
1. Before version 59, the default values were not supported.
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/AudioBufferSourceNode/AudioBufferSourceNode