private void OnAudioFilterRead(float[] data, int channels)
{
if (st == 0f)
{
return;
}
// cache params for speed
float pitchDec = voiceParams.PitchDecayRate,
ampDec = voiceParams.AmpDecayRate,
startFreq = voiceParams.StartFrequency,
endFreq = voiceParams.EndFrequency,
modInd = voiceParams.FMModIndex,
modFreq = voiceParams.FMFrequency,
sinSqM = voiceParams.SinSqMix;
if (decay > 0f)
{
decay *= pitchDec;
}
if (Amp > 0f)
{
Amp *= ampDec;
}
if (decay < 0.0001f && Amp < 0.0001f)
{
decay = 0f;
Amp = 0f;
return;
}
carrierFrequency = scaleRange(decay, 1, 0, startFreq, endFreq);
m_phasor.SetFrequency(carrierFrequency);
float sq = 0f;
float sin = 0f;
float fmModFreq = 0f;
float mix = 0f;
float noise_fm = 0f;
float fm_mix = 0f;
float mod = 0f;
float f = carrierFrequency * st;
for (int j = 0; j < data.Length; j += channels)
{
for (int i = 0; i < channels; i++)
{
if (modInd != 0)
{
m_fmPhasor.SetFrequency(modFreq);
fmModFreq = (float)m_sineFM.LinearLookup(m_fmPhasor.GetPhase()) * m_sineFM.GetSize() * Amp;
mod = carrierFrequency + (fmModFreq * modInd);
m_phasor.SetFrequency(mod);
m_fmPhasor.Tick();
}
sq = (float)m_square.LinearLookup(m_phasor.GetPhase() * m_square.GetSize()) * Amp;
sin = (float)m_sine.LinearLookup(m_phasor.GetPhase() * m_sine.GetSize()) * Amp;
// Mix sine square
mix = (sin * (1 - sinSqM)) + (sq * sinSqM);
data[j + i] = mix;
m_phasor.Tick();
}
}
}
