Not all CD audio tracks are created equal and while professionally produced discs normally have acceptably normalized tracks, not every one does. Different gain levels exist and MP3Gain was created to tackle this.
This program analyzes and normalizes the MP3 files you select and it optimizes them without a loss in sound quality. If you're unsure about making changes to your MP3 file, MP3Gain gives users the option of analyzing the suggested changes before actually writing them to disc.
If you have a large MP3 collection, it may take a lot of time to go through each MP3 file and normalize the sound.. though with MP3Gain, it takes considerably less time. It also comes in handy when selecting a folder before burning the tracks to disc.
From Mp3gain:Not all CDs sound equally loud. The perceived loudness of mp3s is even more variable. Whilst different musical moods require that some tracks should sound louder than others, the loudness of a given CD has more to do with the year of issue or the whim of the producer than the intended emotional effect. If we add to this chaos the inconsistent quality of mp3 encoding, it's no wonder that a random play through your collection of mp3s can have you leaping for the volume control every other track.
There is a...MP3Gain 1.2.5
is licensed as Freeware
for the Windows operating system / platform without restrictions. MP3Gain is available to all software users as a free download (Freeware).
MP3Gain Virus and Malware Tests:
For security reasons, you should also check out the MP3Gain virus and malware test
that has been uploaded; additional MP3Gain screenshots may be available, too.