Building a system that deduplicates audio files based on acoustic #fingerprinting. The algorithm used is a normalized Hamming distance over two vectors of 32-bit integers, which represent the raw AcoustID #Chromaprint fingerprint.

When testing the identification of the same audio in different formats, here are my findings:

WAV <> AIFF <> M4A → (identical, no surprise here, all lossless)
MP3 320kbps (CBR) <> WAV → 99.9% similarity.
MP3 VBR (Q5) <> WAV → 99.3%
MP3 (128kbps CBR) <> WAV → 99.3%

chromaprint documentation:

cmake -DFFT_LIB=vDSP .
-- Could not find FFMPEG
CMake Error at CMakeLists.txt:155 (message):
No FFT library found

Sadly, it does not appear as if #chromaprint nor #AcoustID have any developer Mastodon presence nor IRC channel on liberachat.

Their README.md seems to indicate that on macOS, vDSP can be utilized instead of FFmpeg, but in practice? I do not know if that is true.

Meanwhile, the MacPort for chromaprint has an ungodly amount of dependencies.

z0mg, some of the dependencies for e.g. #chromaprint or #ffmpeg for #MacPorts are *obscene*.

kerberos5? (my audio library or transcoder needs to authenticate? da fuk?!)

Rust? (ffmpeg is at least a decade older than Rust, such a fuggin plague among techbros chasing another thneed language)

Srsly?

I don't think that is true.

I think that perhaps (almost, certainly), some dependencies, have too many other dependencies, but #macports hasn't done a dependency audit.

This is exasperating.