Earlier quoted context omitted.
> Is it though? In my experience it's the buggiest browser out of the big three, and is often missing basic features like e.g.: https://caniuse.com/?search=opus Supported in Firefox for *12 years* now, in Chrome for 10, still no support in Safari. They only "support" Opus audio in their special snowflake '.caf' container, which is super buggy and the last time I checked no open source program could even generate Opus…
> You shouldn't have to do this to have cross-browser high quality audio! You don't, because HE-AACv2 is as universal as MP3 and better than Opus at low bitrates. That said, Safari for macOS and iOS plays all the examples at https://opus-codec.org/examples/ except the last.
That's because none of those samples are Opus files, except the last one. It even says so on the page.
> You don't, because HE-AACv2 is as universal as MP3 and better than Opus at low bitrates.
No. I did evaluate it before picking Opus. It only beats Opus at very low bitrates, and open source encoders for AAC suck.