Open SHN File
The SHN extension file is a type of audio file compressed using lossless Shorten compression, hence its acronym SHN.
About Shorten
Shorten was a file compression format and protocol used to compress audio data.
It is basically a form of file data compression and is used to losslessly compress CD-quality audio files with 44.1 kHz 16-bit stereo PCM.
As mentioned above, Shorten is no longer developed and other lossless audio codecs such as FLAC, Monkey's Audio, TTA and WavPack took its place due to their popularity.
However, Shorten is still used because there are legally traded concert recordings in circulation that are encoded as Shorten files.
SHN files compress CD-quality audio without losing quality, similar to FLAC and Monkey's Audio compression in APE format.