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Nyquist (pronounce it like Klopstock!)

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This commit is contained in:
Robin Gareus 2016-08-23 13:44:00 +02:00
parent 4a831725af
commit 0a975eba29
1 changed files with 3 additions and 3 deletions
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6
libs/ardour/dsp_filter.cc
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@ -197,9 +197,9 @@ Biquad::configure (double a1, double a2, double b0, double b1, double b2)
void
Biquad::compute (Type type, double freq, double Q, double gain)
{
if (Q <= .001) { Q = 0.001; }
if (freq <= 1.) { freq = 1.; }
if (freq >= _rate) { freq = _rate; }
if (Q <= .001) { Q = 0.001; }
if (freq <= 1.) { freq = 1.; }
if (freq >= 0.4998 * _rate) { freq = 0.4998 * _rate; }
/* Compute biquad filter settings.
* Based on 'Cookbook formulae for audio EQ biquad filter coefficents'