ffmpeg -f x11grab -s 1920x1080 -i :0.0 -f alsa -i default -c:a aac -c:v libx264 -crf 18 -preset slower ~/Videos/recording-(date +%F-%I-%M).mp4 I'm using this command to record the screen and my intention is to record only the internal audio. But seems like the source is set to microphone. What will be correct command here?
Okay, after fiddling for an hour I found the solution. At first I got pulseaudio output source by running pactl list short sources. Which showed me this list -
0 alsa_input.usb-046d_0825_3AC10B90-02.mono-fallback module-alsa-card.c s16le 1ch 48000Hz RUNNING 1 alsa_output.pci-0000_06_00.1.hdmi-stereo.monitor module-alsa-card.c s16le 2ch 44100Hz RUNNING 2 alsa_output.pci-0000_06_00.6.analog-stereo.monitor module-alsa-card.c s16le 2ch 44100Hz RUNNING 3 ladspa_output.mbeq_1197.mbeq.monitor module-ladspa-sink.c float32le 2ch 44100Hz RUNNING In my case the source is ladspa_output.mbeq_1197.mbeq.monitor.
Finally I ran this command selecting the output source -
ffmpeg -f x11grab -s 1920x1080 -i :0.0 -f pulse -i ladspa_output.mbeq_1197.mbeq.monitor -c:a ac3 -c:v libx265 -crf 22 -preset slower ~/Videos/Recording-$(date +%F-%I-%M-%N).mp4 Hope this helps.