(Resend to BTS) On Tue, Nov 01, 2022 at 04:26:41PM +0800, Shengjing Zhu wrote: > On Sun, Oct 30, 2022 at 06:18:48PM +0100, Bernhard Übelacker wrote: > > Hello Shengjing Zhu, > > I tried to collect some more information for the maintainer, > > by running peek in a minimal VM. > > > > There I got the same error message "default: No such process". > > > > After a search I received this information [1] where it is proposed > > to install pulseaudio. > > > > And indeed the parameter "-f pulse -i default" seems to > > direct ffmpeg to record from pulseaudio. > > And after installing it (and starting off pulseaudio manually > > in my minimal jwm environment) recording got further > > and could create successfully a file. > > > > Probably this is also causing the fault at your side? > > > > You are right. I don't have audio device so I didn't install pulseaudio. > After having installed and started pulseaudio service, recording as mp4 works.
And one more thing, I find there's an option "Capture sound from default PULSE device" in preferences. But I didn't check it.
