Earlier quoted context omitted.
The original question was whether or not audio could be fingerprinted from white noise, or if compression would obscure that fingerprint. The original context was YouTube videos specifically. Sufficient to support the latter assertion was that lossy compression is frequently used. YouTube's webm does in fact use lossy compression as noted. MP3 is, I assert, still significantly used in multiple contexts, including man…
Re: opus 'Opus (audio format) - Wikipedia https://en.wikipedia.org › wiki › Opus_(audio_format) CELT includes both spectral replication and noise generation, similar to AAC's SBR and PNS'
Does opus have a notion of bitrates similar to mp3 or ogg vorbis? If so, the white noise would vary among bitrates.