Volume Normalizer Master
Volume Normalizer Master is an intuitive application, designed to help you modify the volume of various types of video and audio files. You may want to make them all as close as possible to the same volume.
The application can adjust audio volume in various ways. It matches the volumes of separate files. If you have several songs with different volume levels you want to write to a CD, use this software to adjust volume levels of each song so they sound similar. The target volume level can be average of all tracks, or just as same as the volume of other audio or video file.
The application can also maximize volume. Each file will be amplified as loud as possible without changing its dynamic range and clipping audio track.
You can also change the sound level directly, by specifying a custom dB value or percentage.