[semi-extrinsic]

Just run a compressor! Like the Loudmax plugin if your audio source is a PC, or buy a Behringer CL9 ($30) and plug into your aduio chain if you don't want a computer involved. Problem solved.

This looks like someone using vibe coding where a web search would suffice.

[amlib]

I also fail to see how an ML model is necessary for what is essentially an AGC (Automatic Gain Control). Even something fancy following the EBU R 128 standard like https://lsp-plug.in/?page=manuals&section=autogain_stereo will be orders of magnitude more performant.

I do find the "out-of-band" solution of adjusting volume with an IR remote interesting but this thing is so vibecoded to hell and back and there is no source code to speak off... hard pass.