>> the one and only proper way to do signal matrix multiplication with >> "iemmatrix" is to use [mtx_*~] (rather than [mtx_mul~], >> [mtx_mul_line~] or [matrix~]). > mtx_mul~ and mtx_*~ are equivalent, aren't they? I thought they were. In Pc there is no [mtx_*~] file, so I use [mtx_mul~], because it gets initialized with no problems.