constructor AudioElementSoundChannel

Source

AudioElementSoundChannel(
    AudioElementSound audioElementSound,
    num startTime, num duration, bool loop,
    SoundTransform soundTransform) {

  if (soundTransform == null) soundTransform = new SoundTransform();

  _audioElementSound = audioElementSound;
  _startTime = startTime.toDouble();
  _duration = duration.toDouble();
  _soundTransform = soundTransform;
  _loop = loop;

  audioElementSound._requestAudioElement(this).then(_onAudioElement);
}