[vorbis-dev] vorbis on playstation 2

Segher Boessenkool segher at koffie.nl
Thu Feb 6 23:44:52 PST 2003

David Etherton wrote:

> I guess I need to take a closer look at the vorbis spec, but I'm not clear
> when the window is applied.  Is there a way I could change the data used by
> vorbis_apply_window to 16-bits to save on D$ misses and make it able to use
> the eight-wide MMI?  The MMI also has saturating arithmetic, which might
> help out the final PCM conversion as well.

The window is the very last thing done to the data (well, there's
mixing after that, and all else you want to do _to_ the decompressed
sound, of course).  So yes, 16bit should work here, if you take
the necessary precautions against overflow.


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