mp3Trim can clean up, trim, amplify and fade-in/out your mp3s.
Cleaning is useful on most mp3s and reduces the file size. Trimming is useful on files that contain unwanted noises or sounds. Amplifying is useful on low volume MP3s.
mp3Trim works precisely on MPEG frame boundaries. It is very light on system resources as well !!
It is a very useful utility that can be added to your Mush-Haves softwares.
This is the freeware version of mp3Trim. It doesn't require registration and can be used and distributed freely.