pcm-util v3.0.0
pcm-util
Utils to tamper with PCM formats/buffers. In particular, converting Buffer to AudioBuffer, ArrayBuffer to AudioBuffer, AudioBuffer to ArrayBuffer or AudioBuffer to Buffer.
var pcm = require('pcm-util')
pcm.defaults
Default PCM format to use for any operations
pcm.defaults === {
channels: 2,
sampleRate: 44100,
interleaved: true,
float: false,
signed: true,
bitDepth: 16,
byteOrder: 'LE',
max: 32767,
min: -32768,
samplesPerFrame: 1024,
id: 'S_16_LE_2_44100_I'
}
pcm.normalize(format)
Normalize passed format: ensure all the properties are present and do not contradict.
pcm.format(audioBuffer)
Retrieve format-related properties from audio buffer, return not normalized format.
pcm.equal(a, b)
Compare whether two formats are equal to each other.
pcm.toAudioBuffer(buffer, format)
Convert buffer/arrayBuffer with the format
to audio buffer.
pcm.toArrayBuffer(audioBuffer, format)
Convert audio buffer to array buffer with the format
.
pcm.convert(buffer, fromFormat, toFormat)
Convert array buffer from one format to another.
Related
audio-buffer — audio buffer polyfill. audio-buffer-utils — utils for audio buffers.
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