varqox

How to record multiple applications and microphone into one audio file on Linux

Step 0. Terminology

Sinks are for output, sources are for input. To stream source to sink a loopback must be created. More shall you find there.

Step 1. Create output sink that will be recorded

Our output sink will be named recording.

pacmd load-module module-null-sink sink_name=recording sink_properties=device.description=recording

cbarraco

# If the server has ffmpeg:
## For the server:
ffmpeg -f fbdev -i /dev/fb0 -f avi pipe:1 | nc -l -p 1234
## For the viewer:
nc 127.0.0.1 1234 | ffplay -i pipe:0

# If the server doesn't have ffmpeg:
## For the server:
sudo cat /dev/fb0 | nc -l -p 1234
## For the viewer (replace 1920x1080 with the server's resolution):