[opus] opus-codec.org/comparison: Mono or Stereo?

[Paul Marks]

Looking at the Opus comparison page[1], I can't figure out whether the
Opus/AAC/Vorbis/MP3 lines are meant to imply a mono or stereo
encoding.  Could someone please update the caption to clarify this?

The single dot for G.711 is clearly mono, but for stereo music, are
the codecs at the top meant to converge near 128 kbps, or 256 kbps?

[1] http://opus-codec.org/comparison/