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I still don't get it. What's an Opus codec glitch? I know roughly how things like jpg, flac, and mp3 work, and worked with Opus via ffmpeg/opusenc, but what mak

by Aachen 3y ago

I still don't get it. What's an Opus codec glitch? I know roughly how things like jpg, flac, and mp3 work, and worked with Opus via ffmpeg/opusenc, but what makes some sounds a glitch? Can you only hear this when playing the data with certain decoders or so? The page and the posts don't say

justsomehnguy 3y ago
My guess would be it's when you chose the codec parameters such the output gets some weird artefacts not present in the original source.
TazeTSchnitzel 3y ago
This might be glitching in the sense of “glitch art”, where you deliberately corrupt a compressed file in small ways (flip a few bits here and there, for example) that propagate in interesting ways when decompressed.
MaPi_ 3y ago
On the projects page (https://suricrasia.online/projects/ https://suricrasia.online/projects/) it says "Make glitchy beats with randomly generated Opus protocol packets." So I guess it's random data fed into the opus decoder.
- blackle 3y ago
  author here: this is correct. the opus protocol is so efficient, you can fill a packet with random data and it will still decompress into a sensible sound. this is where all the sounds come from
  - postalrat 3y ago
    I've thought about doing something similar for google's voice compression lyra https://github.com/google/lyra https://github.com/google/lyra
  - Aachen 3y ago
    That... how is that a glitch? That's it functioning as designed