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audio - Generating grey nosie with FFmpeg - Stack Overflow

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I have the following sound configuration:

sub-bass:     -inf dBFS
low bass:     -inf dBFS
bass:         -inf dBFS
high bass:    -inf dBFS
low mids:     0 dBFS
mids:         0 dBFS
high mids:    -inf dBFS
low treble:   -inf dBFS
treble:       -inf dBFS
high treble:  -inf dBFS

If you wonder what is it, you can listen to this sound here.

I'd like to create an audio file provided this sound configuration. FFmpeg filters seem like a good fit, but are not a strict requirement. It may be any command-line tool that handles this kind of task well.

The problem is that I don't really have necessary background in audio theory. I cannot choose the right FFmpeg filter (other than to make a generic white noise), I do not know how to filter frequencies in FFmpeg, I cannot even convert this particular lexicon ("bass", "mids", etc.) into specific numeric frequencies.

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