Contents

init(buffer:bufferStartTime:)

Creates an audio input object for audio that may be discontiguous with previous input.

Declaration

init(buffer: AVAudioPCMBuffer, bufferStartTime: CMTime?)

Parameters

buffer:
An audio buffer.
bufferStartTime:
The time-code of the start of the audio buffer. If nil, this audio buffer is assumed to start immediately after the previous buffer (or at time-code zero if there is no previous buffer). The CMTime can have a different timescale than the sample rate of the audio data.

Discussion

The audio buffer must not overlap or precede other audio input, as determined by the bufferStartTime value.

tip:

Convert an AVAudioTime instance to a CMTime instance with this code.

CMTime(value: avAudioTime.sampleTime, timescale: CMTimeScale(avAudioTime.sampleRate))

See Also

Creating an input element

init(buffer:)