![]() The last thing you want to do after you’ve taken the time to encode several hundred CDs is to have to go back and do it again. MP3Gain does not re-encode the files or make any irreversible changes to your MP3’s audio data. Then, after analyzing the file, it can save information to the MP3’s metadata in the APEv2 format to Analysis and Undo tags about its analysis, and adjust the MP3’s gain setting directly so that the track is louder or softer. One way to iron out the differences is to use MP3Gain to adjust your MP3s to have the the same volume.Īccording to the MP3Gain site and documentation, MP3Gain does an analysis of each MP3 and tries to figure out how loud it sounds to the human ear. This difference carries over when you rip the CD to MP3, and can be really annoying when you’re going from song to song on your MP3 playlists on your computer or portable music player. Two CDs of the same genre, when played on the same CD player, at the same volume, can have drastically different playback volume. The Replay Gain proposal sets out a simple way of calculating and representing the ideal replay gain for every track and album.If you listen to music on CD much, you’ll notice that some CDs sound much louder than others, and I’m not talking about Ministry’s The Mind is a Terrible Thing to Taste versus Sarah McLachlan’s Touch. However, there is no consistent standard by which to define the appropriate replay gain which mp3 encoders and players agree on, and no automatic way to set the volume adjustment for each track – until now. The later ID3v2 standard also incorporates the ability to store a track relative volume adjustment, which can be used to "fix" quiet or loud sounding mp3s. It's already possible to store the title, artist, and CD track number within an mp3 file using the ID3 standard. This concept is called "MetaData" – data about data. There is a remarkably simple solution to this annoyance, and that is to store the required replay gain for each track within the track. If we add to this chaos the inconsistent quality of mp3 encoding, it's no wonder that a random play through your music collection can have you leaping for the volume control every other track. 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. The perceived loudness of mp3s is even more variable. This is a completely optional feature and can easily be turned off should it interfere with your mp3 playback. It also supports storing analysis information transparently within the mp3 file itself, so you only ever need analyse each file once. The other bonus of using MP3Gain over other similar software is that it is completely lossless, because it adjusts the mp3 file directly rather than de-coding and re-encoding it. MP3Gain works slightly differently to other programs with similar functions because it does not simply do peak normalisation but instead uses statistical analysis to analyse how loud a song sounds to human ears. No longer will you have to reach for your volume control every time a particularly loud or quiet song comes on! Your entire mp3 collection can be played at one consistent volume without adjustment. MP3Gain is a free volume balancing tool, used to adjust your collection of mp3s so that they all play at the same volume.
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