deinterleave method
Returns per-channel arrays (copies).
Implementation
List<Float32List> deinterleave() {
final frames = frameCount;
final out = List.generate(channels, (_) => Float32List(frames));
for (int f = 0; f < frames; f++) {
final base = f * channels;
for (int c = 0; c < channels; c++) {
out[c][f] = samples[base + c];
}
}
return out;
}