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General Software Discussion / Re: mp3 Audio OUTPUT volume normalizer? Any such thing?
« on: April 06, 2008, 09:20 PM »and on the flipside, anyone know a tool that will do the opposite, ie batch gain changes (boosting)
I have a number of (MP3) files where the volume is too low - I've done some fiddling with a couple of apps and it seems boosting the gain by about 10db does the trick nicely
2 problems with this -
1) it has to be done on a file by file basis (very tedious)
2) it entails reencoding to a new file (or has done in the apps I've tried) - this is a no-no as the files are already in a lossy format and re-encoding cannot be a good thing...
any suggestions/ideas?
Target-Target (March 30, 2008, 07:20 PM)
MP3Gain is your friend. By default, it normalizes every file (or album) to 89 dB, but you can change that.
You can select a bunch of files and have them all normalized to the same level. I do this with old-time radio files.
Or you can select all the files in an album, and have MP3Gain adjust them all by the same relative amount. This is particularly useful for classical music.
BTW, the original poster's friend, who does not have enough room to back up everything, doesn't have to convert everything all at once. Copy 10 or 100 or 1000 files to a new directory and convert the copies; if he is pleased with the results, copy them back over the originals. Lather, rinse, and repeat until done.