Combining multiples audio sinks with PulseAudio on CentOS Stream 8
During winter break/holidays, I offered myself a new Bass and I mentioned this to one of my friends, who also offered himself a new guitar. As pandemic is still ongoing, he decided to just quickly record himself (video shot) and posted me the link and asked me to do the same.
Then became the simple problem to solve : while I have two nice Fender Amplifiers (Mustang LT and Rumble LT) that are recognized natively by linux kernel on CentOS Stream 8 as valid input sources, I wanted to also combine that with a backing track (something playing on my computer, basically a youtube stream) and record that easily with the simple Cheese video recording app present by default in gnome.
I had so a look at PulseAudio and see if that was easily possible to combine the monitor device (basically the sound coming from your pc/speaker when you play something) with my amplifier as different input, and so then record in one shot that as a new stream/input that Cheese would transparently use (Cheese lets you specific a webcam but nothing wrt sound/microphone/input device)
Here is the solution :
- creating a new