Hey forum,

Does anybody know of good ambisonics extensions for Pure Data?

I'm trying to setup some ambisonics examples for students in a small studio (8 speaker cube), so a simple 1st order panner and decoder object should be fine.

It seems like there are ambisonics libraries available in pd-extended, but I can't see how they actually work - i.e. where is the b-format encoder and decoder objects?

PS, I've also asked this question on SO:
http://stackoverflow.com/questions/22705140/finding-good-ambisonics-objects-for-pure-data

--C.

hi,
did hear about HOA library? You can find it here:
https://github.com/CICM/HoaLibrary/blob/master/Faust/hoa.lib

There are also some special externals for pd, but currently only availabe for Win and Mac.

Project Site: http://www.mshparisnord.fr/hoalibrary/en/

cheers,

`hoalibrary` is awesome but only for 2D speaker arrays - checking out Ambilib now: http://www.york.ac.uk/music/mrc/software/objects/

Not getting anywhere with Ambilib, wrote my own bad and possibly broken objects: https://github.com/cpmpercussion/SimpleAmbisonics maybe will be sufficient!

Here is a messy demo I put together using the iem_ambi objects.
One thing to understand is that these objects only give you the coefficients, you need to build your own signal weighting matrices, as I have done here.

http://www.pdpatchrepo.info/hurleur/ambipan_iem_demo.pd

Thanks Emacpher! That's very helpful.