volume booster and sound amplifier

Sound Energy Volume Control is directly tired to your PC's volume control

Sound mixer applet which allows you to add hot keys to volume mixers and Winamp.

Control sound volume using system-wide hotkeys!

Saves WAV or MP3 files when sound from microphone exceeds a given volume

Boogex is a guitar amplifier plug-in with a variety of sound shaping features.

adjust the volume of sound played from Flash sites,or indeed that play music.

Automates computer shutdown and gently reduces sound volume over time.