[PD] multichannel (8) surround matrix
Phillip Stearns
mindphone_divided at yahoo.com
Sat Feb 18 07:26:53 CET 2006
Similar to the ambisonics questions, I'm wondering if
anyone has done any work on an 8 channel surround
patch. I'm looking for something that works in a
polar coordinate system. The idea is that a sound is
distributed amongst speakers based on it's angle, and
distance from the center of the speaker arrangement.
This is not simply a pan 360 degrees around 8
channels. That's easy. This is more like
spatializing an object inside a space by giving an
angle (0 for front of the room) and radius (0 for
center an 1 for edge of speaker perimeter). The
ability to specify the amount of speakers for use with
other listening environments is also a requirement.
Any ides on where to start? Right now I assume that
all speakers are distributed evenly around a circular
perimeter. I'm using a cosine panning law for panning
around a perimeter but am lost on how to best go about
spatializing inside the perimeter. If anyone is
willing to offer up a patch I could tinker with, I'd
really appreciate it.
Thanks,
Phil
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