[speex-dev] --dtx alone does nothing?
David Willmore
davidwillmore at iamanidiot.com
Wed Jan 15 00:22:24 PST 2003
> > Is there some time window over which it tries to meet this average?
>
> Right now, it looks at what's the average bit-rate so far and does some
> adjustments to meet the target. There might be ways to improve, it's
> very rough right now. Also, note that you'll likely get better results
> by trying several --quality until you get the right bit-rate than with
> --abr.
Okay, good for files, but not probably what the telephony guys want, but
it makes sense, it's a fairly straightforward way to do it.
> > Okay, so are CBR+quality equivalent to CBR+bit-rate or is there some psyc=
> ho-
> > acustics that make them different?
>
> --quality 8 and --bitrate 15000 are exactly equivalent. That's not the
> case with --abr.
I was thinking there was going to be a 1:1 like that. Cool.
> > What is the range of quality <float>? 0-10 like the int or 0.0-1.0?
>
> 0-10
Hmm, sort of like vorbis. :)
One last thing. ;) Is there much meaning to complexity values >3? From
a quick scan of the code, it looks like there are >1 and >2 comparisons,
but not much more than that. I want to run my test over all meaningful
values of complexity and it takes a long time to do a run...
Thanks for all the info. I imagine we're going to need a FAQ before long.
I'm predicting a large increase in out user base. ;)
Cheers,
David
--- >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 'speex-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.
More information about the Speex-dev
mailing list