[vorbis] what quality ?

gabor gabor at realtime.sk
Wed Apr 17 18:11:58 PDT 2002



On Wed, 2002-04-17 at 14:54, Moritz Grimm wrote:
> gabor wrote:
> > why 4.99?
> > 
> > i mean what is so interesting in using 4.99 and not 5... is vorbis using
> > a different algo beginning with 5.0?
> 
> 4.99 is the highest quality level that still uses lossy channel
> coupling. Because of Vorbis switching to lossless stereo at -q 5,
> bitrates jump up quite a bit there. -q 4.99 proved to offer best quality
> per size for most users.

could you explain a bit more lossy channel coupling?

as i know that channel coupling means that the encoder uses the
similarities between the stereo channels too.....

bye,
gabor
> 
> 
> Moritz
> 
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