[vorbis-dev] comparison of beta2 and beta3 encoder quality

David Balazic david.balazic at uni-mb.si
Thu Nov 30 01:48:32 PST 2000



Segher Boessenkool (segher at wanadoo.nl) wrote :

>    Attila Padar wrote:

[ snip ]

>    > Please - if you can - don't use pre-calculated floating point numbers 
>    > (i.e.: 0.34563), calculate every numbers in the program (with sin/cos/exp 
>    > function and with integer values). Somehow and somewhere the pre-calculated 
> 
>    .034563 is 17 (and a half) bit of precision; on more digit and it's the best
>    you'll ever need. Input and output is only 16 bit pcm; that's 15 bits of
>    precision. Having 20 bits for intermediate calculations is all you need,
>    provided your algorithms are numerically stable. If not, you lose anyway.

Will vorbis never support 24 bit ( or more ) input and/or output ?
      
>    > numbers were also calculated... 


-- 
David Balazic
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