private List<AudioDataMessage> getAudioDatum() {
List<AudioDataMessage> result = new ArrayList<AudioDataMessage>();
Track track = sequence.getTracks()[0];
for (int j = 0; j < track.size(); j++) {
MfiEvent event = track.get(j);
MfiMessage message = event.getMessage();
if (message instanceof AudioDataMessage) {
result.add((AudioDataMessage) message);
}
}
return result;