[Limulus]

Originally Posted by diggrd

......If you want to increase this volume try hard limiting to -1 or so and boosting by about 18dB

http://diggrdslandofthefree.com/too_quietsample.wav

http://diggrdslandofthefree.com/too_quiet.mp3

doing that boosting/limiting you are cutting some or even a lot of frequencies from the original source, please check this cool info about editing in this case:

http://www.youtube.com/watch?v=3Gmex_4hreQ