/// <summary>
/// Play a sound from the sample file
/// </summary>
/// <param name="sampleIndex">sample index (starting from zero) in the file</param>
public void PlaySound(int sampleIndex)
{
var asy = Task.Run(() =>
{
if ((Voice == null) || (Instrument == null))
{
return;
}
ReloadBuffer(sampleIndex);
CancelStop.Set();
//Set the frequency ratio to the voice
Voice.SetFrequencyRatio(1);
//Start the play if needed
if (!IsPlaying)
{
Voice.Start();
Voice.SetVolume(1, XAudio2.CommitNow);
}
//update state
IsPlaying = true;
});
}
/// <summary>
/// Start to play a note, It will be stopped until you call "StopNote"
/// </summary>
/// <param name="notePitch"></param>
public void PlayNote(int notePitch)
{
var asy = Task.Run(() =>
{
if ((Voice == null) || (Instrument == null))
{
return;
}
//If we play another note
if ((notePitch != PlayingPitch) || !IsPlaying || stopping)
{
//Get the frequenc y of the pitch
var FrequencyRatio = XAudio2.SemitonesToFrequencyRatio(notePitch) / 2f;
//See if we should use another sample
var reloadNeeded = Instrument.ReloadNeeded(FrequencyRatio, ActualFrequencyRatio);
if (Instrument.IsPlugged || reloadNeeded || !IsPlaying || stopping)
{
ReloadBuffer(FrequencyRatio, reloadNeeded);
}
CancelStop.Set();
//Set the frequency ratio to the voice
var realFrequencyRatio = Instrument.GetCorrectFrequencyRatio(FrequencyRatio);
Voice.SetFrequencyRatio(realFrequencyRatio);
ActualFrequencyRatio = FrequencyRatio;
PlayingPitch = notePitch;
}
//Start the play if needed
if (!IsPlaying)
{
Voice.Start();
Voice.SetVolume(1, XAudio2.CommitNow);
}
//update state
IsPlaying = true;
});
}
/// <summary>
/// Play a sound from the sample file
/// </summary>
/// <param name="sampleIndex">sample index (starting from zero) in the file</param>
public void PlaySound(float frequency, float pan = 1f, float volume = 1f)
{
var asy = Task.Run(() =>
{
if ((Voice == null) || (Instrument == null))
{
return;
}
//Get the frequenc y of the pitch
var FrequencyRatio = frequency / 440f;
//See if we should use another sample
var reloadNeeded = Instrument.ReloadNeeded(FrequencyRatio, ActualFrequencyRatio);
if (Instrument.IsPlugged || reloadNeeded || !IsPlaying || stopping)
{
ReloadBuffer(FrequencyRatio, reloadNeeded);
}
CancelStop.Set();
//Set the frequency ratio to the voice
var realFrequencyRatio = Instrument.GetCorrectFrequencyRatio(FrequencyRatio);
Voice.SetFrequencyRatio(realFrequencyRatio);
ActualFrequencyRatio = FrequencyRatio;
PlayingPitch = -1;
float[] outputMatrix = new float[8];
for (int i = 0; i < 8; i++)
{
outputMatrix[i] = 0;
}
// pan of -1.0 indicates all left speaker,
// 1.0 is all right speaker, 0.0 is split between left and right
float left = (0.5f - pan / 2) * volume;
float right = (0.5f + pan / 2) * volume;
switch (Master.ChannelMask)
{
case (int)Speakers.Mono:
outputMatrix[0] = 1.0f;
break;
case (int)Speakers.Stereo:
case (int)Speakers.TwoPointOne:
case (int)Speakers.Surround:
outputMatrix[0] = left;
outputMatrix[1] = right;
break;
case (int)Speakers.Quad:
outputMatrix[0] = outputMatrix[2] = left;
outputMatrix[1] = outputMatrix[3] = right;
break;
case (int)Speakers.FourPointOne:
outputMatrix[0] = outputMatrix[3] = left;
outputMatrix[1] = outputMatrix[4] = right;
break;
case (int)Speakers.FivePointOne:
case (int)Speakers.SevenPointOne:
case (int)Speakers.FivePointOneSurround:
outputMatrix[0] = outputMatrix[4] = left;
outputMatrix[1] = outputMatrix[5] = right;
break;
case (int)Speakers.SevenPointOneSurround:
outputMatrix[0] = outputMatrix[4] = outputMatrix[6] = left;
outputMatrix[1] = outputMatrix[5] = outputMatrix[7] = right;
break;
}
Voice.SetOutputMatrix(null, Voice.VoiceDetails.InputChannelCount, Master.VoiceDetails.InputChannelCount, outputMatrix);
//Start the play if needed
if (!IsPlaying)
{
Voice.Start();
Voice.SetVolume(1);
}
//update state
IsPlaying = true;
});
}
