Sound Normalizer

Normalizing a sound or an audio track means equaling the average volume of one or several audio tracks to the maximum level.

Its goal is to avoid a situation when some songs have a higher volume compared with others. There are several normalization methods. The so-called Peak Level finds the maximum amplitude in the audio wave and applies a reduction. According to this peak, the rest of the wave will be reduced or amplified. Another method, called Average Output, finds the output level and equalizes this volume in all the tracks. Normalization is frequent and necessary when you are recording audio CDs.
Sound Normalizer is intended to normalize audio tracks. The user interface is not difficult to use. The whole process of normalizing consists on loading an audio file, testing it according to one of the two above mentioned methods, deciding on a normalization level, executing the normalizing process and saving the changes. The software uses two gauges, one for each audio channel, to visualize the volume level. When the volume exceeds the recommended levels, these gauges turn red. Adjusting the normalization levels can be easily done by dragging the buttons to the desired level. The normalization methods available depend on the file type. In fact, the program only supports three file extensions: wav, flac and mp3. In case you need to convert several audio files, you can use the batch processor.
In addition, Sound Normalizer allows editing ID3 tags and converting between the supported audio formats. Sound Normalizer can also be used as a regular music player.