Limited availability
Note: This feature is available in Dedicated Web Workers.
The copyTo()
method of the AudioData
interface copies a plane of an AudioData
object to a destination buffer.
copyTo(destination, options)
Parameters
destination
An ArrayBuffer
, a TypedArray
, or a DataView
to copy the plane to.
options
An object containing the following:
planeIndex
The index of the plane to copy from.
frameOffset
Optional
An integer giving an offset into the plane data indicating which plane to begin copying from. Defaults to 0
.
frameCount
Optional
An integer giving the number of frames to copy. If omitted then all frames in the plane will be copied, beginning with the frame specified in frameOffset
.
Undefined.
ExceptionsInvalidStateError
DOMException
Thrown if the AudioData
object has been transferred.
RangeError
Thrown if one of the following conditions is met:
AudioData
object describes a planar format, but options.planeIndex
is outside of the number of planes available.AudioData
object describes an interleaved format, but options.planeIndex
is greater than 0
.The following example copies the plane at index 1
to a destination buffer.
AudioData.copyTo(AudioBuffer, { planeIndex: 1 });
Specifications Browser compatibility
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HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4