SplitWave is a MP3 & Audio software developed by KGP Software. After our trial and test, the software is proved to be official, secure and free. Here is the official description for SplitWave:
EditByBrothersoft: SplitWave is a completely free tool that divides a single wave (.wav) file into separate tracks by automatically detecting periods of silence.
SplitWave can handle large (> 1 Gig) sound files with ease, by reading the sound data in small chunks at a time. The output files are written in the same format as the input file. you can free download SplitWave 1.02 now.