iemmatrix has plenty of help-patches (though i don't know where they are on Pd-extended)
just have a look at http://pure-data.svn.sourceforge.net/viewvc/pure-data/trunk/externals/iem/ie...
great ... thankyou.
I can do this outside of matrices but its gonna be shitloads of objects.
yes that is the main reason why i started writing iemmatrix.
the object you want is [mtx_*~ 16 9]
so easy! (when you know how).
For posterity's sake ... if anyone is googling how to get speaker feeds from iem_ambi3, the answer is just to route the output of iem_ambi3 into a mtx_*~ object ... where the input signals are the ambisonic components and the outputs are the speaker feeds.
Etienne