[vorbis-dev] Audo quality problem

[Simeon Maxein]

> I listened to your samples, and couldn't ABX them even with my $150
> headphones on.  By subtracting the WAVs from each other, I can hear what
> you're probably talking about, but I'd say "very audible artifacts" is
> perhaps a little overstated.

I was referring to the tests I did some while ago, with an earlier version
of oggenc. I was probably not making that clear enough in my last mail.
There were very audible artifacts in there; of course, the samples I encoded
now are not as bad (and would not be a big problem when listening to
normally).

> It might be helpful if you could determin the lowest quality setting where
> the problem (for you) goes away.  Say, within .5 or so.

I will try that out and send you my results.

> You also might be interested in the Garf-tuned version, which gives higher
> quality at some of the higher bitrates than stock oggenc does.  Search the
> archives for a link.

I tried that now, as well as a "post-1.0.1"-version of oggenc, with no great
differences at -q5. Only that the Garf version encoded the
"theproduct"-sample with an average of 300kb/s instead of 200 as normal
oggenc does.

> Also, thank you for going to the trouble to put up FLACs containing just
the
> short sample where the artifacts occur

That was the only sensible thing for me to do, as my webspace allows only
files with 1.6MB max and I only have an ISDN connection ;-)

Simeon Maxein

<p>--- >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-dev-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.