Boost & Normalize Volume of Video or Audio File.
Audio Amplifier Pro is a MP3 & Audio software developed by DanDans Digital Media. After our trial and test, the software is proved to be official, secure and free. Here is the official description for Audio Amplifier Pro:
BrothersoftEditor: Audio Amplifier Pro adjusts the volume of your audio file or video file. It also allows you to normalize all video clips and audio tracks to the same volume level. With only several clicks this simple tool bumps the audio up. It would keep the video track unchanged, and the audio will be adjusted with an increase or decrease in volume. Audio Amplifier Pro works with all key video and audio formats.