[vorbis-dev] Multichannel Encoding

[Marco Al]

From: "Borgerding, Mark A." <MarkAB at xetron.com>

> The filter bank implementation would be pretty fast, but could be a space
> hog.  It would probably end up needing hundreds of reference filters.  You
> could space them in various manners, but that would trade space for
> computational speed.

PCA works pretty well for HRTF's. I think <10 components half the size of the
filter (you dont need phase, minimum phase reconstruction works fine if you add
interaural delay seperately) and a set of coefficients per direction could well
be sufficient.

Marco

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