renderMonoInt16 method

void renderMonoInt16(
  1. ArrayInt16 destination, {
  2. int offset = 0,
  3. int? length,
})
Renders the waveform as a monaural signal with 16-bit quantization. The audio renderer. The destination buffer.

Implementation

void renderMonoInt16(ArrayInt16 destination, {int offset = 0, int? length}) {
  if (destination.bytes.lengthInBytes % 2 != 0) {
    throw "Invalid destination length";
  }

  int sampleCount = 0;

  if (length != null) {
    sampleCount = length;
  } else {
    sampleCount = destination.bytes.lengthInBytes ~/ 2;
    sampleCount -= offset;
  }

  List<double> left = List<double>.filled(sampleCount, 0, growable: false);
  List<double> right = List<double>.filled(sampleCount, 0, growable: false);

  render(left, right);

  for (var t = 0; t < sampleCount; t++) {
    int sample = (16384 * (left[t] + right[t])).toInt();
    destination[offset + t] = sample;
  }
}