Comment 4 for bug 1064030

Rated as P5 at the moment (about half a dozen requests noted so far). There is
only limited player support on Windows (Firefox - output level cannot be
controlled except for mute - and Foobar2000). If we're going to add support we
should do it for all three platforms, I think.

Export support already exists using the Audacity command-line exporter with
opus-tools or opus sources (http://opus-codec.org/downloads/) or with FFmpeg
1.0 (if compiled with libopus).

I encoded some Opus music tracks without options, which is claimed to "produce
a very high quality encode". In my subjective opinion it sounds notably more
muddy and artifacted compared to MP3 at both vbr quality 4 and vbr 8 (where it
produces about the same file size). I assume though the point of Opus is
somewhat better quality at low delay, for streaming application?