[vorbis] AC-3 Decoding

John Morton jwm at plain.co.nz
Wed Aug 8 05:00:28 PDT 2001



On Wednesday 08 August 2001 23:43, you wrote:

>  > I _believe_ ogg/vorbis can support multichannel sound.
>  > It also supports real spatial (3D, AC3 is only 2D) sound.
>  >
>  > None of this is actually available right now , AFAIK.
>
>  	I'm not quite sure what you mean by real spatial? I was always
>  under the impression that AC3 was spatial due to its 5 channel nature,
>  which allows for positioning of a signal almost anywhere inside the sound
>  field.

I gather you still loose a sense of height with regular 5 channel 
configurations, and certainly with the standard 5.1 encoding found on DVDs. 
I've heard the word 'ambisonic' mentioned in terms of post 1.0 Vorbis 
features, so check out the website:

http://www.ambisonic.net/

John

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