Hi -
I've never used Ambisonics before, but I'm wondering about how
possible it would be to implement the following setup using SC's
Ambisonics stuff:
I have 20 or 30 point sources, each of which has a location in the x-y
plane (and may move about in this plane). I'd like to encode them into
an Ambisonic representation, then decode this to a ring-of-8-speakers.
Then for convenience I'd also like to be able to project this
ring-of-8 down to stereo headphones using a HRTF.
Looking back over the mailing list archives it looks like this is
probably possible - looks like I could use BFEncode2 to encode the
sources, then BFDecode1 to decode onto the speaker ring. But I have
some questions:
* How do I turn many point sources into one single B-format feed? Do I
encode each one separately and then just add the feeds together? (Or
multiply the feeds together? Or...)
* In terms of the audio outcome, is the only difference between the
different "orders" of Ambisonics the sound quality?
* For projecting the ring down to headphones, what is needed? In the
archive there's discussion of downloading the Kemar HRTFs from MIT -
fine. But is there a specific UGen that would take my 8 channels and
apply the HRTFs? Or otherwise how would it work?
I'd be grateful for any tips
Dan
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