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Tweak default declick fade length #8341

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This commit is contained in:
Robin Gareus 2020-09-04 01:50:58 +02:00
parent 1fa8f6bf83
commit 7a9d4b1f64
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
1 changed files with 4 additions and 4 deletions
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8
libs/ardour/disk_reader.cc
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@ -1578,7 +1578,7 @@ DiskReader::dec_no_disk_output ()
DiskReader::DeclickAmp::DeclickAmp (samplecnt_t sample_rate)
{
_a = 4550.f / (gain_t)sample_rate;
_a = 800.f / (gain_t)sample_rate; // ~ 1/50Hz to fade by 40dB
_l = -log1p (_a);
_g = 0;
}
@ -1600,7 +1600,7 @@ DiskReader::DeclickAmp::apply_gain (AudioBuffer& buf, samplecnt_t n_samples, con
const float a = _a;
Sample* const buffer = buf.data ();
const int max_nproc = 16;
const int max_nproc = 4;
uint32_t remain = n_samples;
uint32_t offset = buffer_offset;
@ -1648,7 +1648,7 @@ DiskReader::Declicker::alloc (samplecnt_t sr, bool fadein)
delete[] vec;
vec = new Sample[loop_fade_length];
const float a = 1024.0f / sr;
const float a = 390.0f / sr; // ~ 1/100Hz for 40dB
/* build a psuedo-exponential (linear-volume) shape for the fade */
@ -1876,7 +1876,7 @@ DiskReader::rt_midibuffer ()
void
DiskReader::alloc_loop_declick (samplecnt_t sr)
{
loop_fade_length = lrintf (ceil (-log (GAIN_COEFF_DELTA / 2.) / (1024. / sr)));
loop_fade_length = lrintf (ceil (-log (GAIN_COEFF_DELTA / 2.) / (390. / sr)));
loop_declick_in.alloc (sr, true);
loop_declick_out.alloc (sr, false);
}