Hiya.
This isn't really a MAD question, but it was suggested to me to try this list: I'm trying to implement some support for the output of the 'normalize' package in my mp3 player of choice, but ran into the problem that it doesn't seem that either mpg123 or mpg321 currently support the RVA2 volume adjustment tag in ID3v2.4 tags. So I wrote a little routine in the jukebox wrapper program I'm using ('Tunez') to pull out normalize's backwards-compatible ID3v2.3 "XRVA" tag data.
Practical upshot is that before I call mpg321 I know that I want my file to be played, say, 5 dB louder or 10 dB quieter, but don't know how to translate that into the " -gain " argument's 0-100 scale on mpg123 or mpg321. I could figure this out by trial and error, but was hoping there might be a more definitive conversion. Anyone have any thoughts?
Thanks! - Ert Dredge