void growl_compute(sp_data *sp, growl_d *form, SPFLOAT *in, SPFLOAT *out)
{
int i;
SPFLOAT tmp_in = *in;
SPFLOAT tmp_out = *in;
SPFLOAT tf = 0.0;
SPFLOAT bf = 0.0;
SPFLOAT freq = 0.0;
SPFLOAT *x = &form->x;
SPFLOAT *y = &form->y;
// *out = 0.0;
//
for(i = 0; i < 4; i++) {
tf = (*x) *
(formants[i + 3] - formants[i]) +
formants[i];
bf = (*x) *
(formants[i + 11] - formants[i + 7]) +
formants[i + 7];
freq = (*y) * (bf - tf) + tf;
form->filt[i]->freq = freq;
form->filt[i]->bw =
((freq * 0.02) + 50);
sp_reson_compute(sp, form->filt[i], &tmp_in, &tmp_out);
tmp_in = tmp_out;
}
*out = *in;
sp_bal_compute(sp, form->bal, &tmp_out, in, out);
tmp_out = *out;
sp_dcblock_compute(sp, form->dcblk, &tmp_out, out);
}
void process(AUAudioFrameCount frameCount, AUAudioFrameCount bufferOffset) override {
for (int frameIndex = 0; frameIndex < frameCount; ++frameIndex) {
int frameOffset = int(frameIndex + bufferOffset);
for (int channel = 0; channel < channels; ++channel) {
float *in = (float *)inBufferListPtr->mBuffers[channel].mData + frameOffset;
float *comp = (float *)compBufferListPtr->mBuffers[channel].mData + frameOffset;
float *out = (float *)outBufferListPtr->mBuffers[channel].mData + frameOffset;
if (started) {
sp_bal_compute(sp, bal, in, comp, out);
} else {
*out = *in;
}
}
}
}
