Anyway, the "compressor" is lossy as hell, as you wanted. Any ABX/listening tests are SUPER welcome. See attachments (uploaded 15 second segment of Vluarr - They Don't Know, in all formats, MP3, decoded and your proprietary format that starts with "SK" (magic number))!
Also attached output:
C:\Users\Stefan\Downloads\Compressed\mp3compress>C:\Users\Stefan\Downloads\Compr
essed\mp3compress\mp3compress.exe -o "C:\Users\Stefan\Downloads\Music\They Don't
Know\output.mpp" "C:\Users\Stefan\Downloads\Music\They Don't Know\input.mp3"
MP3compress v1.0 (4/12/2024)
Processed 2 of 2 files [■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■]
files with errors:
------------------
C:\Users\Stefan\Downloads\Music\They Don't Know\output.mpp (could not read file
/ file not found)
-> 2 file(s) processed, 1 error(s), 0 warning(s)
--------------------------------
total time : 0.13 sec
avrg. kbyte per s : 1771 kbps
avrg. comp. ratio : 90.75 %
--------------------------------
< press ENTER >
C:\Users\Stefan\Downloads\Compressed\mp3compress>C:\Users\Stefan\Downloads\Compr
essed\mp3compress\mp3compress.exe "C:\Users\Stefan\Downloads\Music\They Don't Kn
ow\input.mpp"
MP3compress v1.0 (4/12/2024)
Processed 1 of 1 files [■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■]
-> 1 file(s) processed, 0 error(s), 0 warning(s)
--------------------------------
total time : 0.14 sec
avrg. kbyte per s : 1659 kbps
avrg. comp. ratio : 90.75 %
--------------------------------
< press ENTER >
As you can see, it shrunk the file by 9.25%. "Very nice!" 🤣🤣