Of course, I use the VU meters of Audacity for all my project, and I made a tuto to explain it 8 years ago, but it was 8 years ago...
So to summarize:
- We need a VU meter for each audio track, with a cursor for tuning the global volume of the track.
- We need a VU meter for the audio output of the whole project, with a cursor for tuning the final volume of this audio output.