Sound software, tools, etc.
Here are suggestions for programs etc. that might be of use to sound developers:
for a conversion to OGG, BeSweet can do that. It might also have the option to normalise the volume. http://besweet.notrace.dk/
The latest (July 2010) version of WinFF supports batch conversion of MP3 to OGG, and it's much more user-friendly than BeSweet. Also, I confirmed that you can amplify the audio with it at the same time. Just add "-vol 5000" under the "Options>Additional Command Line Parameters" tab. (5000 may still be a little too quiet. Try maybe up to 6000?)
Anyway, here's WinFF: http://www.winpenpack.com/main/download.php?view.1093
If you need an Ogg Vorbis encoder, OggDrop for Windows is another good free choice. It does batch-encoding.
As for normalization, ecanormalize is a good Linux choice. It does batch-normalization on tuns of files at once. I used ecanormalize to normalize a bunch of s3m/xm/mod files that I converted to OGG for my mp3 player.