[vorbis] Spectrum duplication (2)

Sune Foldager cryo at diku.dk
Tue Jun 17 08:23:52 PDT 2003

Headless wrote:

> Ogg would have to break backward compatibility with the V1 format, or
> they would have to implement it in a MP3Pro like kludge fashion.
> That's a very high price to pay.

You mean Vorbis v1 when you say ogg v1 I assume. But I never said that 
we should do this or try to do this with v1. I am just saying it might 
be worth while to look into techniques of this kind, in the future.

> I nearly fell over laughing when I tried AAC (using Liquifier Pro) at
> low bitrates, WMA, MP3Pro and Ogg V1 all sound much, much better at low
> bitrates.

I don't know, I can only slightly hear the difference between aac at 
64kbit and vorbis at 64kbit. I don't know what coder the aac file was 
encoded with though. But have you tried AACplus then?


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