#934: downmix to mono makes audio cliffing.
----------------------+-----------------------------------------------------
Reporter: kwanghui | Owner: lennart
Type: defect | Status: new
Milestone: 0.9.23 | Component: daemon
Keywords: remap |
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down mix to mono channel makes audio cliffing.
I think it is caused by src/pulsecore/resample.c 706 line.
It is better to change code similar to following
- if (a == b || a == PA_CHANNEL_POSITION_MONO || b ==
PA_CHANNEL_POSITION_MONO) {
+ if (a == b || a == PA_CHANNEL_POSITION_MONO) {
m->map_table_f[oc][ic] = 1.0;
oc_connected = TRUE;
ic_connected[ic] = TRUE;
}
+ else if (b == PA_CHANNEL_POSITION_MONO) {
+ if(n_ic)
+ m->map_table_f[oc][ic] = 1.0f / (float) n_ic;
+
+ oc_connected = TRUE;
+ ic_connected[ic] = TRUE;
+ }
--
Ticket URL: <http://pulseaudio.org/ticket/934>
PulseAudio <http://pulseaudio.org/>
The PulseAudio Sound Server
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