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();
}
internal List <Pitch> GetFrequenciesPlaying()
{
List <Pitch> frequenciesPlaying = new List <Pitch> {
};
foreach (Pitch frequency in PitchSelector.EnumeratePitches())
{
if (CurrentlyPlayingPitches[(int)frequency])
{
frequenciesPlaying.Add(frequency);
}
}
return(frequenciesPlaying);
}
/// <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>
/// Computes the exact tones in the chord
/// by taking into account its name and scale.
/// </summary>
/// <returns>List of Pitches in the chord</returns>
public List <Pitch> GetChord()
{
if (chordName == ChordName.None)
{
return new List <Pitch> {
Pitch.Empty
}
}
;
Dictionary <ChordName, ChordShiftFromBase> chordShifts = scale.Major ? MajChordShifts : MinChordShifts;
List <Pitch> chord = new List <Pitch> {
};
chord.Add(PitchSelector.ShiftPitchBySemitones(scale.Base, chordShifts[chordName].first));
chord.Add(PitchSelector.ShiftPitchBySemitones(scale.Base, chordShifts[chordName].second));
chord.Add(PitchSelector.ShiftPitchBySemitones(scale.Base, chordShifts[chordName].third));
return(chord);
}
/// <summary> /// Returns WavePlayer corresponding to key and wave form. /// </summary> public static WavePlayer GetWavePlayerFromKey(Keys key, WaveFormEquation waveForm) => PitchSelector.GetWavePlayer(GetPitchFromKey(key), waveForm);
