private void btnFollowSequence_Click(object sender, EventArgs e)
{
tbInputSequence.Enabled = false;
if (!timerFollowSequence.Enabled)
{
if (!_musicHmmModelOnline.Started)
{
_musicFollower = new MusicalFollower(_musicHmmModelOnline, (int)nudTempo.Value, _musicXmlDecoder.Beats, _musicXmlDecoder.BeatType);
timerFollowSequence.Interval = _musicFollower.GetTimerInterval((int)nudTempo.Value);
timerMetronome.Interval = _musicFollower.GetMetronomeInterval((int)nudTempo.Value);
_inputSequence = tbInputSequence.Text.Split(',').Select(s => int.Parse(s)).ToArray();
}
timerFollowSequence.Start();
timerMetronome.Start();
btnFollowSequence.Text = "Stop";
}
else
{
timerFollowSequence.Stop();
timerMetronome.Stop();
btnFollowSequence.Text = "Follow the Sequence";
}
}
private void ResetOnline()
{
tbInputSequence.Enabled = true;
_musicHmmModelOnline = new MusicalHmmOnline(_musicHmmData, (int)nudWindowSize.Value, (int)nudObservsCount.Value);
_musicFollower = new MusicalFollower(_musicHmmModelOnline, (int)nudTempo.Value, _musicXmlDecoder.Beats, _musicXmlDecoder.BeatType);
_inputSequence = tbInputSequence.Text.Split(',').Select(s => int.Parse(s)).ToArray();
_currentNoteInd = 0;
_currentBeat = 1;
timerFollowSequence.Stop();
timerMetronome.Stop();
if (_waveIn != null)
{
_waveIn.StopRecording();
}
if (cbUpdateMatrixes.Checked)
{
GuiUtils.NavigateToItem(dgvTransitions, 0, 0);
GuiUtils.NavigateToItem(dgvEmissions, 0, 0);
GuiUtils.NavigateToItem(dgvInitial, 0, 0);
}
tbObservations.Text = "";
tbLastObservations.Text = "";
tbPath.Text = "";
tbLastPath.Text = "";
tbCurNoteName.Text = "";
tbCurMidiNote.Text = "";
tbCurHmmMidiNote.Text = "";
tbOnlineStepTime.Text = "";
tbMetronome.Text = "";
tbEventEstimation.Text = "";
tbKvantEstimation.Text = "";
tbTempoEstimation.Text = "";
tbRating.Text = "";
btnFollowSequence.Text = "Follow the Sequence";
btnMicFollowing.Text = "Realtime mic following";
musicalNotesViewer.NavigateToEvent(-1);
pbNoteProgress.Minimum = 0;
pbNoteProgress.Maximum = _musicHmmData.EventKvants.Count;
pbNoteProgress.Value = 0;
pnlNotesViewer.HorizontalScroll.Value = pnlNotesViewer.HorizontalScroll.Minimum;
}
private void btnMicFollowing_Click(object sender, EventArgs e)
{
_musicFollower = new MusicalFollower(_musicHmmModelOnline, (int)nudTempo.Value, _musicXmlDecoder.BeatType, _musicXmlDecoder.Beats);
_audioDecoder = new WaveMp3FileDecoder();
_audioDecoder.DetectLevelThreshold = AudioUtils.DecibelToPower(tbSoundAmplitude.Value);
_waveIn = new WaveIn();
_waveIn.WaveFormat = new WaveFormat(44100, 1);
_waveIn.DataAvailable += OnDataAvailable;
_waveIn.RecordingStopped += OnRecordingStopped;
var stopwatch = new Stopwatch();
TimeSpan oldTime = new TimeSpan();
lblPitchsCount.Text = "0";
_audioDecoder.InitRealtimeMode(_waveIn.WaveFormat.Channels, _waveIn.WaveFormat.BitsPerSample, _waveIn.WaveFormat.SampleRate,
_musicFollower.GetTimerInterval((int)nudTempo.Value),
(PitchTracker tracker, PitchRecord record) =>
{
lblPitchsCount.Text = (int.Parse(lblPitchsCount.Text) + 1).ToString();
lblTime.Text = (stopwatch.Elapsed - oldTime).ToString();
oldTime = stopwatch.Elapsed;
tbCurNoteName.Text = MusicalTemperament.MidiNoteToNoteName(record.MidiNote);
tbCurMidiNote.Text = record.MidiNote <= -1 ? "-" : record.MidiNote.ToString();
tbCurHmmMidiNote.Text = _musicHmmData.MidiNoteToHmmMidiNote(record.MidiNote).ToString();
FollowObservation(record.MidiNote);
});
_waveIn.StartRecording();
stopwatch.Start();
oldTime = stopwatch.Elapsed;
timerMetronome.Interval = _musicFollower.GetMetronomeInterval((int)nudTempo.Value);
timerMetronome.Start();
btnMicFollowing.Text = "Stop";
}
