[FFmpeg-cvslog] avfilter/af_apsyclip: increase protection for high frequencies

[Jason Jang]

ffmpeg | branch: master | Jason Jang <jcj83429 at gmail.com> | Fri Jan 28 17:15:54 2022 -0800| [306994b887d484eb9e0a9aa95b8d7825ce4efec1] | committer: Paul B Mahol

avfilter/af_apsyclip: increase protection for high frequencies

This reduces sibilance distortion when sibilance and bass are
present at the same time. Bringing the protection of high
frequencies up to about the same level as for low frequencies
should also make the quality less dependent on the frequency
balance of the playback system.

Signed-off-by: Jason Jang <jcj83429 at gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=306994b887d484eb9e0a9aa95b8d7825ce4efec1
---

 libavfilter/af_apsyclip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavfilter/af_apsyclip.c b/libavfilter/af_apsyclip.c
index 2a79ed3a8a..1f4114894c 100644
--- a/libavfilter/af_apsyclip.c
+++ b/libavfilter/af_apsyclip.c
@@ -186,7 +186,7 @@ static int config_input(AVFilterLink *inlink)
 {
     AVFilterContext *ctx = inlink->dst;
     AudioPsyClipContext *s = ctx->priv;
-    static const int points[][2] = { {0,14}, {125,14}, {250,16}, {500,18}, {1000,20}, {2000,20}, {4000,20}, {8000,15}, {16000,5}, {20000,-10} };
+    static const int points[][2] = { {0,14}, {125,14}, {250,16}, {500,18}, {1000,20}, {2000,20}, {4000,20}, {8000,17}, {16000,14}, {20000,-10} };
     static const int num_points = 10;
     float scale;
     int ret;