Stops playing sound about soundpool

[Laban1]

Please disregard, I got it working by correcting how I am using the library:

class SoundUtil {
  static Soundpool _soundPool;
  static int _errorSoundId;

  static Future playErrorSound() async {
    if (_soundPool == null) {
      _soundPool = Soundpool(streamType: StreamType.notification);
    }

    if (_errorSoundId == null) {
      await rootBundle.load("assets/scan_fail.mp3").then((ByteData soundData) async {
        _errorSoundId = await _soundPool.load(soundData);
      });
    }

    int streamId = await _soundPool.play(_errorSoundId);
  }
}