public void Portament(int aNoteDestination, double aPitch, ref MidiPitch aMidiPitch)
{
if (/*aMidiStatus.GetBank() != 0x7F00 &&*/ aMidiPitch.GetPortamentFlag() == true)
{
portamentTime = aMidiPitch.GetPortamentTime();
noteFrequencyDestination = 440.0d * Math.Pow(2.0d, (aNoteDestination - 69.0d) / 12.0f) * Math.Pow(2.0d, aPitch / 1200.0d);
noteFrequencyDiff = noteFrequencyDestination - noteFrequency;
}
}
public FilterVibrato(ref MidiPitch aMidiPitch)
{
lowFrequency = aMidiPitch.lowFrequency;
lowFrequencyDirection = aMidiPitch.mulBase;
/*
* if( aMidiStatus.GetBank() == 0x7F00 )
* {
* lowFrequencyDirection = 0.0d;
* }*/
}
public void Filter(ref double lSampleSpeed, int aSampleRate, ref MidiPitch aMidiPitch)
{
if (lowFrequencyDirection != 0.0d)
{
lowFrequency += lowFrequencyDirection;
if (lowFrequency >= aMidiPitch.modHigh * aSampleRate)
{
lowFrequencyDirection = -aMidiPitch.mulBase * aSampleRate;
}
else if (lowFrequency < aMidiPitch.modLow * aSampleRate)
{
lowFrequencyDirection = aMidiPitch.mulBase * aSampleRate;
}
lSampleSpeed *= lowFrequency;
}
}
public void Oscillate(double[] aBuffer, int aSampleRate, ref MidiVolume aMidiVolume, ref MidiPitch aMidiPitch)
{
generatorPortament.Update(aSampleRate);
double lSampleSpeed = 1.0d / ( double )aSampleRate;
double lAddSamples = generatorPortament.noteFrequency * aMidiPitch.GetFrequency() * lSampleSpeed;
filterVibrato.Filter(ref lAddSamples, aSampleRate, ref aMidiPitch);
generatorEnvelope.Generate(aBuffer, lAddSamples, lSampleSpeed);
}
public void Portament(byte aNote, byte aVelocity, SoundfontBase aSoundfont, ref MidiVolume aMidiVolume, ref MidiPitch aMidiPitch, double aSecondsSustain = 0.0d)
{
Logger.LogNormal("Portament");
generatorEnvelope.Set(aSoundfont, aVelocity, aSecondsSustain);
generatorPortament.Portament(aNote, aSoundfont.soundinfo.GetPitch(), ref aMidiPitch);
}
public MidiOscillator(byte aNote, byte aInstrument, byte aVelocity, SoundfontBase aSoundfont, ref MidiVolume aMidiVolume, ref MidiPitch aMidiPitch, double aSecondsSustain = 0.0d)
{
generatorEnvelope = new GeneratorEnvelope(aSoundfont, aVelocity, aSecondsSustain);
filterVibrato = new FilterVibrato(ref aMidiPitch);
generatorPortament = new GeneratorPortament(aNote, aSoundfont.soundinfo.GetPitch());
}