diff options
| author | Robin Gareus <robin@gareus.org> | 2015-04-26 02:31:21 +0200 |
|---|---|---|
| committer | Robin Gareus <robin@gareus.org> | 2015-04-26 02:48:15 +0200 |
| commit | fe7cb07c7f89a7485857c97f731e339cc035b612 (patch) | |
| tree | 9397f4ecb1c0579f66d6800ef44814426f6906e2 /libs/ardour/amp.cc | |
| parent | 1b54b85da0f7fdda5940392318dc093b2ca32fde (diff) | |
relax gain LPF to 25Hz.
Diffstat (limited to 'libs/ardour/amp.cc')
| -rw-r--r-- | libs/ardour/amp.cc | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/libs/ardour/amp.cc b/libs/ardour/amp.cc index caf00dc496..07f79ed5a8 100644 --- a/libs/ardour/amp.cc +++ b/libs/ardour/amp.cc @@ -107,7 +107,7 @@ Amp::run (BufferSet& bufs, framepos_t /*start_frame*/, framepos_t /*end_frame*/, } - const double a = 62.78 / _session.nominal_frame_rate(); // 10 Hz LPF; see Amp::apply_gain for details + const double a = 156.825 / _session.nominal_frame_rate(); // 25 Hz LPF; see Amp::apply_gain for details double lpf = _current_gain; for (BufferSet::audio_iterator i = bufs.audio_begin(); i != bufs.audio_end(); ++i) { @@ -210,7 +210,7 @@ Amp::apply_gain (BufferSet& bufs, framecnt_t sample_rate, framecnt_t nframes, ga /* Low pass filter coefficient: 1.0 - e^(-2.0 * π * f / 48000) f in Hz. * for f << SR, approx a ~= 6.2 * f / SR; */ - const double a = 62.78 / sample_rate; // 10 Hz LPF + const double a = 156.825 / sample_rate; // 25 Hz LPF for (BufferSet::audio_iterator i = bufs.audio_begin(); i != bufs.audio_end(); ++i) { Sample* const buffer = i->data(); @@ -289,7 +289,7 @@ Amp::apply_gain (AudioBuffer& buf, framecnt_t sample_rate, framecnt_t nframes, g } Sample* const buffer = buf.data(); - const double a = 62.78 / sample_rate; // 10 Hz LPF, see [other] Amp::apply_gain() above, + const double a = 156.825 / sample_rate; // 25 Hz LPF, see [other] Amp::apply_gain() above for details double lpf = initial; for (pframes_t nx = 0; nx < nframes; ++nx) { |