highperfocused/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

avfilter/af_afftdn: use log10 instead to get noise levels

Browse Source
This commit is contained in:
Paul B Mahol
2022-03-15 11:20:03 +01:00
parent 4a96baa2c8
commit 26292d4b6b
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
libavfilter/af_afftdn.c
View File

@@ -974,7 +974,7 @@ static void finish_sample_noise(AudioFFTDeNoiseContext *s,
dnch->noise_band_var[i] -= dnch->noise_band_avr[i] * dnch->noise_band_avr[i] + dnch->noise_band_var[i] -= dnch->noise_band_avr[i] * dnch->noise_band_avr[i] +
dnch->noise_band_avi[i] * dnch->noise_band_avi[i]; dnch->noise_band_avi[i] * dnch->noise_band_avi[i];
dnch->noise_band_auto_var[i] = dnch->noise_band_var[i]; dnch->noise_band_auto_var[i] = dnch->noise_band_var[i];
sample_noise[i] = (1.0 / C) * log(dnch->noise_band_var[i] / s->floor) - 100.0; sample_noise[i] = 10.0 * log10(dnch->noise_band_var[i] / s->floor) - 100.0;
} }
if (s->noise_band_count < NB_PROFILE_BANDS) { if (s->noise_band_count < NB_PROFILE_BANDS) {
for (int i = s->noise_band_count; i < NB_PROFILE_BANDS; i++) for (int i = s->noise_band_count; i < NB_PROFILE_BANDS; i++)
@@ -1091,7 +1091,7 @@ static void get_auto_noise_levels(AudioFFTDeNoiseContext *s,
{ {
if (s->noise_band_count > 0) { if (s->noise_band_count > 0) {
for (int i = 0; i < s->noise_band_count; i++) { for (int i = 0; i < s->noise_band_count; i++) {
levels[i] = (1.0 / C) * log(dnch->noise_band_auto_var[i] / s->floor) - 100.0; levels[i] = 10.0 * log10(dnch->noise_band_auto_var[i] / s->floor) - 100.0;
} }
if (s->noise_band_count < NB_PROFILE_BANDS) { if (s->noise_band_count < NB_PROFILE_BANDS) {
for (int i = s->noise_band_count; i < NB_PROFILE_BANDS; i++) for (int i = s->noise_band_count; i < NB_PROFILE_BANDS; i++)