The volume level for each individual song is calculated and the amount of gain needed for it to match the target volume is displayed. This mode is best used for collections of individual tracks that are completely separate from each other, like compilations or greatest hits albums. ReplayGain has two different modes to choose from and the software you use to adjust audio files using this method will usually have both available. The calculated settings are stored in the music file’s metadata so it can be undone and the file restored to its original volume level later on. What makes ReplayGain useful is the process is lossless and it can do this without re-encoding the audio file. It uses an algorithm to calculate a track’s overall perceived loudness and then adjusts the song to the required level, making the sound you actually hear more consistent across several songs. It’s not actually a program or piece of software but ReplayGain is an audio standard to measure the volume level of a music file. Here we show you another way that has some useful advantages. One way is to re-encode the file to the desired level, but this lowers the quality of the audio.

The result is some tracks might be significantly louder or quieter than others. What you need to solve this problem is a program to alter the volume of the songs to a similar level so there are no sudden jumps between tracks when there shouldn’t be. Some individual tracks or whole albums will have been encoded by a different person or company using different methods. One of the problems you will have most likely come across if you have music from several different sources is that they don’t all have the exact same volume level. There is a multitude of different ways to get your music files from P2P networks, download services like iTunes, searching for MP3s on Google, or visiting Myspace. Many of us like to listen to music whether it’s in the car on the way to work, walking down the street or at home to relax.

Batch normalize aiff files