[vorbis] RC3: I'm impressed

[Gian-Carlo Pascutto]

----- Original Message -----
From: "Peter Schuller" <peter.schuller at infidyne.com>
To: <vorbis at xiph.org>
Sent: Wednesday, January 16, 2002 5:50 PM
Subject: Re: [vorbis] RC3: I'm impressed

<p>> > Yes, basically.  At -q5 and above, vorbis uses lossless channel
coupling.
> > Below that, it uses lossy channel coupling (similarities between the
> > channels allow the encoder to save bits).
>
> Correct me if I'm wrong, but doesn't it save bits with the lossless
> channel coupling aswell? I was under the impression it used a lossless
> algoritm while still not encoding each channel completely separately.

You are correct.

Lossless coupling also takes advantage of similarities between
channels.

The difference between lossy and lossless coupling is that lossy
coupling will remove stereo information that is inaudible.

For more details, see http://xiph.org/ogg/vorbis/doc/stereo.html


--
GCP

<p>--- >8 ----
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