/// <inheritdoc />
/// <summary>
/// Creates new instance of Filter
/// </summary>
public Filter()
{
Envelope = new Adsr(0, 0, 127, 0);
Reset();
Envelope.PropertyChanged += (sender, args) => NotifyOfPropertyChange(nameof(Envelope));
}
public void SetUp()
{
_out = new ConstantSignal <double>(() => 0.0);
if (_midiManager != null)
{
_plugin.MidiProcessor.NoteOff -= _midiManager.NoteOff;
_plugin.MidiProcessor.NoteOn -= _midiManager.NoteOn;
}
_midiManager = new MidiManager(NoteChannels);
_plugin.MidiProcessor.NoteOff += _midiManager.NoteOff;
_plugin.MidiProcessor.NoteOn += _midiManager.NoteOn;
_scratchBuffer1 = new double[this.BlockSize, 1];
_scratchBuffer2 = new double[this.BlockSize, 1];
_scratchBuffer3 = new double[this.BlockSize, 1];
_scratchBuffer4 = new double[this.BlockSize, 1];
_scratchBuffer5 = new double[this.BlockSize, 1];
_scratchBuffer6 = new double[this.BlockSize, 1];
_scratchBufferChannels1 = new double[this.BlockSize, NoteChannels];
_scratchBufferChannels2 = new double[this.BlockSize, NoteChannels];
_scratchBufferChannels3 = new double[this.BlockSize, NoteChannels];
_scratchBufferChannels4 = new double[this.BlockSize, NoteChannels];
_scratchBufferChannels5 = new double[this.BlockSize, NoteChannels];
_scratchBufferChannels6 = new double[this.BlockSize, NoteChannels];
_blockSize = BlockSize;
_sampleRate = SampleRate;
var sine1 = new Oscillator(NoteChannels, this.SampleRate)
{
Shape = Oscillator.WaveShape.Sine,
Frequency = _midiManager.ChannelFrequencies,
OctaveShift = new ConstantSignal <int>(() => _plugin.Model.Path1OctaveShift),
Amplitude = new ConstantSignal <double>(() => _plugin.Model.Sine)
};
sine1.Out.Buffer = _scratchBufferChannels1;
var square1 = new Oscillator(NoteChannels, this.SampleRate)
{
Shape = Oscillator.WaveShape.Square,
Frequency = _midiManager.ChannelFrequencies,
OctaveShift = new ConstantSignal <int>(() => _plugin.Model.Path1OctaveShift),
Amplitude = new ConstantSignal <double>(() => _plugin.Model.Square)
};
square1.Out.Buffer = _scratchBufferChannels2;
var triangle1 = new Oscillator(NoteChannels, this.SampleRate)
{
Shape = Oscillator.WaveShape.Triangle,
Frequency = _midiManager.ChannelFrequencies,
OctaveShift = new ConstantSignal <int>(() => _plugin.Model.Path1OctaveShift),
Amplitude = new ConstantSignal <double>(() => _plugin.Model.Triangle)
};
triangle1.Out.Buffer = _scratchBufferChannels3;
var sine2 = new Oscillator(NoteChannels, this.SampleRate)
{
Shape = Oscillator.WaveShape.Sine,
Frequency = _midiManager.ChannelFrequencies,
OctaveShift = new ConstantSignal <int>(() => _plugin.Model.Path2OctaveShift),
Amplitude = new ConstantSignal <double>(() => _plugin.Model.Sine)
};
sine2.Out.Buffer = _scratchBufferChannels4;
var square2 = new Oscillator(NoteChannels, this.SampleRate)
{
Shape = Oscillator.WaveShape.Square,
Frequency = _midiManager.ChannelFrequencies,
OctaveShift = new ConstantSignal <int>(() => _plugin.Model.Path2OctaveShift),
Amplitude = new ConstantSignal <double>(() => _plugin.Model.Square)
};
square2.Out.Buffer = _scratchBufferChannels5;
var triangle2 = new Oscillator(NoteChannels, this.SampleRate)
{
Shape = Oscillator.WaveShape.Triangle,
Frequency = _midiManager.ChannelFrequencies,
OctaveShift = new ConstantSignal <int>(() => _plugin.Model.Path2OctaveShift),
Amplitude = new ConstantSignal <double>(() => _plugin.Model.Triangle)
};
triangle2.Out.Buffer = _scratchBufferChannels6;
var sourceSum1 = new Sum("sourceSum");
sourceSum1.Inputs.Add(sine1.Out);
sourceSum1.Inputs.Add(square1.Out);
sourceSum1.Inputs.Add(triangle1.Out);
sourceSum1.Buffer = _scratchBufferChannels1;
var sourceSum2 = new Sum("sourceSum2");
sourceSum2.Inputs.Add(sine2.Out);
sourceSum2.Inputs.Add(square2.Out);
sourceSum2.Inputs.Add(triangle2.Out);
sourceSum2.Buffer = _scratchBufferChannels4;
var adsr1 = new Adsr(NoteChannels, this.SampleRate)
{
ReleaseDuration = new ConstantSignal <double>(() => _plugin.Model.ReleaseDuration / 5),
AttackDuration = new ConstantSignal <double>(() => _plugin.Model.AttackDuration / 10),
DecayDuration = new ConstantSignal <double>(() => _plugin.Model.DecayDuration / 10),
Attack = new ConstantSignal <double>(() => _plugin.Model.AttackStrength),
Sustain = new ConstantSignal <double>(() => _plugin.Model.SustainStrength),
Triggers = _midiManager.ChannelTriggers,
Input = sourceSum1
};
adsr1.Out.Buffer = _scratchBufferChannels1;
var adsr2 = new Adsr(NoteChannels, this.SampleRate)
{
ReleaseDuration = new ConstantSignal <double>(() => _plugin.Model.ReleaseDuration / 5),
AttackDuration = new ConstantSignal <double>(() => _plugin.Model.AttackDuration / 10),
DecayDuration = new ConstantSignal <double>(() => _plugin.Model.DecayDuration / 10),
Attack = new ConstantSignal <double>(() => _plugin.Model.AttackStrength),
Sustain = new ConstantSignal <double>(() => _plugin.Model.SustainStrength),
Triggers = _midiManager.ChannelTriggers,
Input = sourceSum2
};
adsr2.Out.Buffer = _scratchBufferChannels4;
var delayOsc = new Oscillator(1, SampleRate)
{
Shape = Oscillator.WaveShape.Triangle,
Frequency = new ConstantSignal <double>(() => _plugin.Model.Delay1PlaybackSpeedFreq),
Amplitude = new ConstantSignal <double>(() => Math.Pow(_plugin.Model.Delay1PlaybackSpeedMod, 3) / 2),
Base = new ConstantSignal <double>(() => 1)
};
delayOsc.Out.Buffer = _scratchBuffer1;
var delay1 = new Delay()
{
DelayLength = new ConstantSignal <int>(() => _plugin.Model.Delay1Length),
PlaybackSpeed = delayOsc.Out,
Gain = new ConstantSignal <double>(() => _plugin.Model.Delay1Gain)
};
delay1.Out.Buffer = _scratchBuffer2;
var combine1 = new Mix("Combine");
combine1.Inputs.Add(delay1.Out);
combine1.Inputs.Add(adsr1.Out.Flat((sum, cur) => sum + cur, 0d));
combine1.Strengths.Add(new ConstantSignal <double>(() => _plugin.Model.Wet1));
combine1.Strengths.Add(new ConstantSignal <double>(() => 1 - _plugin.Model.Wet1));
combine1.Buffer = _scratchBuffer3;
var lowPass1 = new LowPass("lowpass1")
{
Scale = new ConstantSignal <int>(() => _plugin.Model.Filter1),
Input = combine1
};
lowPass1.Buffer = _scratchBuffer4;
delay1.Input = lowPass1;
var combine2 = new Mix("Combine2");
combine2.Inputs.Add(delay1.Out);
combine2.Inputs.Add(adsr2.Out.Flat((sum, cur) => sum + cur, 0d));
combine2.Strengths.Add(new ConstantSignal <double>(() => _plugin.Model.Gain1));
combine2.Strengths.Add(new ConstantSignal <double>(() => _plugin.Model.Gain2));
combine2.Buffer = _scratchBuffer6;
var softClip = new ApplyFunction(sample => sample / (1 + Math.Abs(sample)), "SoftClip")
{
Buffer = _scratchBuffer6,
Input = combine2
};
_out = softClip;
}
public AdsrSignalSource(Adsr adsr)
{
_adsr = adsr;
}
