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a-Comp: Fix bug with DSP in the knee processing region

This commit is contained in:
Damien Zammit 2016-07-20 20:10:46 +10:00
parent 85cdff7cb0
commit 62cd4d43bf
1 changed files with 8 additions and 6 deletions
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14
libs/plugins/a-comp.lv2/a-comp.c
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@ -316,13 +316,14 @@ run_mono(LV2_Handle instance, uint32_t n_samples)
Lxg = (ingain==0.f) ? -160.f : to_dB(ingain);
Lxg = sanitize_denormal(Lxg);
Lyg = Lxg + (1.f/ratio-1.f)*(Lxg-thresdb+width/2.f)*(Lxg-thresdb+width/2.f)/(2.f*width);
if (2.f*(Lxg-thresdb) < -width) {
Lyg = Lxg;
} else {
} else if (2.f*(Lxg-thresdb) > width) {
Lyg = thresdb + (Lxg-thresdb)/ratio;
Lyg = sanitize_denormal(Lyg);
} else {
Lyg = Lxg + (1.f/ratio-1.f)*(Lxg-thresdb+width/2.f)*(Lxg-thresdb+width/2.f)/(2.f*width);
}
Lxl = Lxg - Lyg;
@ -432,13 +433,14 @@ run_stereo(LV2_Handle instance, uint32_t n_samples)
Lxg = (ingain==0.f) ? -160.f : to_dB(ingain);
Lxg = sanitize_denormal(Lxg);
Lyg = Lxg + (1.f/ratio-1.f)*(Lxg-thresdb+width/2.f)*(Lxg-thresdb+width/2.f)/(2.f*width);
if (2.f*(Lxg-thresdb) < -width) {
Lyg = Lxg;
} else {
} else if (2.f*(Lxg-thresdb) > width) {
Lyg = thresdb + (Lxg-thresdb)/ratio;
Lyg = sanitize_denormal(Lyg);
} else {
Lyg = Lxg + (1.f/ratio-1.f)*(Lxg-thresdb+width/2.f)*(Lxg-thresdb+width/2.f)/(2.f*width);
}
Lxl = Lxg - Lyg;
@ -524,10 +526,10 @@ comp_curve (AComp* self, float xg) {
if (2.f * (xg - thresdb) < -width) {
yg = xg;
} else if (2.f * fabs (xg - thresdb) <= width) {
yg = xg + (1.f / ratio - 1.f ) * (xg - thresdb + width / 2.f) * (xg - thresdb + width / 2.f) / (2.f * width);
} else if (2.f * (xg - thresdb) > width) {
yg = thresdb + (xg - thresdb) / ratio;
} else {
yg = xg + (1.f / ratio - 1.f ) * (xg - thresdb + width / 2.f) * (xg - thresdb + width / 2.f) / (2.f * width);
}
return yg;
}