Some multimedia converters like the SUPER support even some of the less known audio files like SHN and should be able to help you with converting them o MP3 format.
Convert Shorten compressed audio file to Compressed audio and music file, mp3 songs or ringtones.
We found 2 software records in the database related to .shn to .mp3 file format conversion.
Microsoft Windows software - convert shn to mp3 on Windows
Universal All Purpose Free Media, Audio & Video Converter Player Recorder
Convert from shn file format
|Yes, SUPER supports shn file conversion as a source file type.||No||No||No||No||No||No||No|
|Yes, SUPER supports mp3 file conversion as a target file type.||No||No||No||No||No||No||No|
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned shn to mp3. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Apple macOS / Mac OS X software - convert shn to mp3 on OS X
An audio player and converter for lossless audio