[vorbis-dev] Optimisations

Michael Smith msmith at labyrinth.net.au
Thu Nov 16 00:43:01 PST 2000



At 09:03 AM 11/16/00 +0100, you wrote:
>> The spec doesn't say anything about this. Basically, the spec says that
>> vorbis encodes amplitudes at each sample (well, I think it would if there
>> were a formal spec. There isn't, yet). It's up to an (en|de)coder to
>> actually do so with some specific precision. Libvorbis is the only one of
>> these at the moment.
>
>The codebooks are limited in precision, no? But that's just in the res0 (?)
>stuff of course, and we can drop another one in :-)

Yes, but as far as the spec goes (as I understand things) there is no limit
on the resolution of the codebooks - specific codebooks limit things, but
vorbis can cope with arbitrarily high precision here, if you have
sufficiently silly-sized codebooks :-)

Michael

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