[vorbis] RC3 vs. 1.0

[John Morton]

On Thu, 05 Sep 2002 21:01, Giuliano Pochini wrote:
> > Would people who seem to be sensitive to this artifact like to do a bit
> > more testing across the ranges of quality settings to see where it's a
> > problem? I'd like to know if it goes away at 4, 5, 6 or 7. Given the
> > current theory is that it's a lossy stereo coupling artifact, I'm
> > guessing it disappears at 5-6, but I'm not certain I'm hearing it,
> > myself.
>
> You need a good test sound. I'll try to put it somewhere.

Thanks. Though I've just encoded a lot of music at 4.99...

> I can hear the artifact up to 5.99. There is a strong quality
> improvement from 4.99 to 5.00. 6.00 and above is perfect.

Sounds like what you'd expect a  lossy channel coupling artifact to do.
Maybe it's time to work on that vorbis re-encoder I've been thinking about.

John
--- >8 ----
List archives:  http://www.xiph.org/archives/
Ogg project homepage: http://www.xiph.org/ogg/
To unsubscribe from this list, send a message to 'vorbis-request at xiph.org'
containing only the word 'unsubscribe' in the body.  No subject is needed.
Unsubscribe messages sent to the list will be ignored/filtered.