diff options
Diffstat (limited to 'Alc/effects')
| -rw-r--r-- | Alc/effects/reverb.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/Alc/effects/reverb.c b/Alc/effects/reverb.c index 1fb30610..1db987c6 100644 --- a/Alc/effects/reverb.c +++ b/Alc/effects/reverb.c @@ -855,7 +855,14 @@ static inline ALfloat CalcDampingCoeff(ALfloat hfRatio, ALfloat length, ALfloat // Damping is done with a 1-pole filter, so g needs to be squared. g *= g; - coeff = lpCoeffCalc(g, cw); + if(g < 0.9999f) /* 1-epsilon */ + { + /* Be careful with gains < 0.001, as that causes the coefficient + * head towards 1, which will flatten the signal. */ + g = maxf(g, 0.001f); + coeff = (1 - g*cw - sqrtf(2*g*(1-cw) - g*g*(1 - cw*cw))) / + (1 - g); + } // Very low decay times will produce minimal output, so apply an // upper bound to the coefficient. |