The application has two modules: one for analysis and another for processing. The first of them is the one in charge of looking for the peak level (Peak Normalization) of WAV files and the average level (RMS normalization) of MP3 files, and thus be able to define the gain. The second module has the mission to normalize the final song sound, trying to make sure that the final output sound is as near as possible to 0dB.
The program accepts both MP3 and WAV files, it can handle batch processing, it includes a WAV player to check the changes performed, an ID3 tag editor and an audio converter that will convert the files between WAV and MP3 and vice-versa, and all of this from a simple and easy-to-use interface, that the majority of users will be able to handle perfectly.
If in your music collection there are still songs that don't sound as well as they should, you may need to install Sound Normalizer on your computer.