I have a bunch of audio files (more than 4000) that I want to trim the leading and trailing silence from, that's where ffmpeg comes in.
For instance in the image bellow, the command I'm using is
$ ffmpeg -i input.mp3 -af silenceremove=1:0:-63.563dB:1:0:-63.563dB output.mp3
From the command, -63.563dB is just the level high enough that doesn't remove the second burst of sound (marked with red). If I put -63.564dB, for instance, that part is removed. I found that number by trial and error, because ffmpeg's help command wasn't very helpful in that sense.
So, my question is how does that number (-63.563dB) relate to the markers on the vertical ruler on Adobe Audition? And what else can I put in so that it only remove leading and trailing silences, and very short burst of sound (no more that 0.01 ms)