/// <summary>
/// Adds recorded or generated harmony to pre-recorded melody and beat.
/// Stores the result in the original file.
/// </summary>
/// <param name="manual">Should harmony be added manually (as opposed to automatic generation)</param>
public void AddHarmony(bool manual)
{
if (scale == null)
{
throw new ApplicationException("No scale selected");
}
// remove previously added harmony
harmonyEpochs = new List <Epoch> {
};
RegenerateRecording();
if (manual)
{
// adjust volume of recording
recordingChannel.Volume = 2.5f;
ManualHarmonyForm harmonyForm = new ManualHarmonyForm(this);
harmonyProvider = new MixingWaveProvider32(new List <WaveChannel32> {
PitchSelector.GetWavePlayer(Pitch.Empty, session.WaveForm).Channel
});
harmonyOutput = new DirectSoundOut();
harmonyOutput.Init(harmonyProvider);
harmonyOutput.Play();
harmonyForm.ShowDialog();
RegenerateRecording();
}
}
private Session()
{
WaveForm = WaveForms.SineWave;
// set all frequencies as not-playing
CurrentlyPlayingPitches = new bool[Enum.GetNames(typeof(Pitch)).Length];
foreach (Pitch frequency in Enum.GetValues(typeof(Pitch)))
{
CurrentlyPlayingPitches[(int)frequency] = false;
}
// initialize mixer with "silence" playing
SoundMixer = new MixingWaveProvider32(new List <WaveChannel32> {
PitchSelector.GetWavePlayer(Pitch.Empty, WaveForm).Channel
});
CurrentlyPlayingPitches[(int)Pitch.Empty] = true;
// initialize output
SoundOutput = new DirectSoundOut();
SoundOutput.Init(SoundMixer);
SoundOutput.Play();
// set beat as not-playing
BeatPlaying = false;
// initialize recording to placeholder instance
recorder = RecorderPlaceholder.Instance;
IsRecording = false;
}
/// <summary>
/// Plays given chord.
/// </summary>
/// <param name="chordName">Name of chord played</param>
public void PlayChord(ChordName chordName)
{
Chord chord = new Chord(scale, chordName);
foreach (Pitch pitch in chord.Tones)
{
harmonyProvider.AddInputStream(PitchSelector.GetWavePlayer(pitch, session.WaveForm).Channel);
}
lastChord = chord;
}
/// <summary>
/// Stops playing currently played chord.
/// </summary>
public void StopChord()
{
if (lastChord != null)
{
foreach (Pitch pitch in lastChord.Tones)
{
harmonyProvider.RemoveInputStream(PitchSelector.GetWavePlayer(pitch, session.WaveForm).Channel);
}
}
lastChord = null;
}
private void ResetOutput()
{
SoundOutput.Dispose();
SoundMixer = new MixingWaveProvider32(new List <WaveChannel32> {
PitchSelector.GetWavePlayer(Pitch.Empty, WaveForm).Channel
});
SoundOutput = new DirectSoundOut();
SoundOutput.Init(SoundMixer);
SoundOutput.Play();
}
/// <summary>
/// Stop playing given pitch
/// </summary>
/// <param name="pitch">Pitch</param>
public void StopPlayingPitch(Pitch pitch)
{
// alert recorder that a change has been made
UpdateRecorder();
// do nothing if no tone was released
if (pitch == Pitch.Empty)
{
return;
}
WavePlayer inputStream = PitchSelector.GetWavePlayer(pitch, WaveForm);
SoundMixer.RemoveInputStream(inputStream.Channel);
CurrentlyPlayingPitches[(int)pitch] = false;
}
/// <summary>
/// Starts playing the specified pitch
/// </summary>
/// <param name="pitch">Pitch</param>
public void StartPlayingPitch(Pitch pitch)
{
// do nothing if no tone is added
if (pitch == Pitch.Empty)
{
return;
}
if (!CurrentlyPlayingPitches[(int)pitch])
{
UpdateRecorder();
WavePlayer inputStream = PitchSelector.GetWavePlayer(pitch, WaveForm);
SoundMixer.AddInputStream(inputStream.Channel);
CurrentlyPlayingPitches[(int)pitch] = true;
}
}
/// <summary> /// Returns WavePlayer corresponding to key and wave form. /// </summary> public static WavePlayer GetWavePlayerFromKey(Keys key, WaveFormEquation waveForm) => PitchSelector.GetWavePlayer(GetPitchFromKey(key), waveForm);