The AudioBuffer
constructor of the Web Audio API creates a new AudioBuffer
object.
The AudioBuffer
constructor of the Web Audio API creates a new AudioBuffer
object.
js
new AudioBuffer(options)
options
Options are as follows:
length
The size of the audio buffer in sample-frames. To determine the length
to use for a specific number of seconds of audio, use numSeconds * sampleRate
.
numberOfChannels
The number of channels for the buffer. The default is 1, and all user agents are required to support at least 32 channels.
sampleRate
The sample rate in Hz for the buffer. The default is the sample rate of the context
used in constructing this object. User agents are required to support sample rates from 8,000 Hz to 96,000 Hz (but are allowed to go farther outside this range).
channelCount
Represents an integer used to determine how many channels are used when up-mixing and down-mixing connections to any inputs to the node. (See AudioNode.channelCount
for more information.) Its usage and precise definition depend on the value of channelCountMode
.
channelCountMode
Represents an enumerated value describing the way channels must be matched between the node's inputs and outputs. (See AudioNode.channelCountMode
for more information including default values.)
channelInterpretation
Represents an enumerated value describing the meaning of the channels. This interpretation will define how audio up-mixing and down-mixing will happen. The possible values are "speakers"
or "discrete"
. (See AudioNode.channelCountMode
for more information including default values.)
context
Deprecated
A reference to an AudioContext
. This parameter was removed from the spec.
NotSupportedError
DOMException
Thrown if one or more of the options are negative or otherwise has an invalid value (such as numberOfChannels
being higher than supported, or a sampleRate
outside the nominal range).
RangeError
Thrown if there isn't enough memory available to allocate the buffer.
Specification |
---|
Web Audio API # dom-audiobuffer-audiobuffer |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
AudioBuffer |
55Thecontext parameter was supported up until version 57, but has now been removed. |
79 | 53 | No | 42Thecontext parameter was supported up until version 44, but has now been removed. |
14.1 | 55Thecontext parameter was supported up until version 57, but has now been removed. |
55Thecontext parameter was supported up until version 57, but has now been removed. |
53 | 42Thecontext parameter was supported up until version 44, but has now been removed. |
14.5 | 6.0Thecontext parameter was supported up until Samsung Internet 7.0, but has now been removed. |
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https://developer.mozilla.org/en-US/docs/Web/API/AudioBuffer/AudioBuffer