Add support for analyzing MP3 files

[amotl]

Hi there,

at [1], a user asked to also support the MP3 file format as input.

With kind regards,
Andreas.

[1] https://community.hiveeyes.org/t/how-to-clone-install-and-run-the-audiohealth-program/430/46

[ClemensGruber]

My answer in the same thread linked above:

MP3 files are optimized for humans, for speach, for music. The secret behind the MP3 technology is that “not important” sound elements are erased, reduced. So the original sound is modified! We (or I :-) do not know how different bee sound is compared to human sound. So it could be that important information in the be sound is deleted by the MP3 algorithm.

In the current state – we do not know what frequencies are important as information source – I would not use any lossy compression. Perhaps this may change in the future or you say it’s not practically doable without heavy compression but it is an imformation loss and we do not know if this information is important. Saying this with less than Wikipedia-knowledge about MP3 compression. So feel free to add more substantial information. ;-)

So my implication would be to support a lossless compression format before going on with MP3.