waveToPCM method - FlutterSoundHelper class - flutter_sound_helper library - Dart API

waveToPCM

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waveToPCM method

Future<void> waveToPCM({

required String inputFile,
required String outputFile,

})

Convert a WAVE file to a Raw PCM file.

Remove the WAVE header in front of the Wave file

This verb is useful to convert a Wave file to a Raw PCM file.

Note that this verb is not asynchronous and does not return a Future. See here a discussion about Raw PCM and WAVE file format.

Parameters

inputFile: is the path of your input file
outputFile: is the path to your output file

Example

FlutterSoundHelper().waveToPCM(inputFile: 'foo.wav', outputFile: 'bla.pcm');

Implementation

Future<void> waveToPCM({
  required String inputFile,
  required String outputFile,
}) async {
  var filIn = File(inputFile);
  var filOut = File(outputFile);
  var sink = filOut.openWrite();
  await filIn.open();
  var buffer = filIn.readAsBytesSync();
  sink.add(buffer.sublist(WaveHeader.headerLength));
  await sink.close();
}