On Tue, Feb 02, 2021 at 10:40:51AM +0100, Renaud GHIA wrote: > Hi, > > Below the result of the command "pacmd list". > Here without any change of resampling method. This part here shows your ffmpeg client: > index: 1 > driver: <protocol-native.c> > flags: > state: RUNNING > source: 2 <VACmic> > volume: front-left: 65536 / 100% / 0.00 dB, front-right: 65536 / 100% / > 0.00 dB > balance 0.00 > muted: no > current latency: 0.50 ms > requested latency: 2000.00 ms > sample spec: s16le 2ch 48000Hz > channel map: front-left,front-right > Stereo > resample method: speex-float-1 It seems like ffmpeg is requesting 48 kHz audio, so pulse is forced to resample. If possible, can you try running your ffmpeg process with the flag "-sample_rate 44100" and see if that reduces the CPU usage? Everything else in your pulse chain is 44.1 kHz, so with that change there should be no resampling at all. --Sean _______________________________________________ pulseaudio-discuss mailing list pulseaudio-discuss@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss
