How to process audio from conferences in the console?

Question

linux

A lot of good things happen at conferences. It is not always possible to watch in video format or the speaker does not have a presentation, only the voice is interesting.
I often resort to this technique, I rob video from video hosting (youtube-dl), then I save the sound separately (ffmpeg or again youtube-dl) in mp3 format and listen like a podcast on the road.
But it happens that the sound is bad and in addition to the voice of the speaker there is a lot of different noise.
Are there console tools to improve voice quality and reduce noise?
Tried using SOX
/usr/bin/sox noise.mp3 -n noiseprof noise.prof
/usr/bin/sox input.mp3 output.mp3 noisered noise.prof 0.21
Doesn't help much, sometimes it gets even worse.

Answer 1

here

Answer 2

youtube-dl -f bestaudio ...

Answer 3

1. Use youtube-dl-mp3
2. Try voice-cleanup.sh