hello running echo_diagnostic with raw files converted from wav causing following error message. conversion was made by sox application (which took all default settings from WAV header, so no conversion parameters were needed to provide). could you hint please, why regular RAW file is not OK? octave:1> echo_diagnostic('mic_in_215.raw', 'spk_out_215.raw', 'aec_diagnostic.sw', 256) reding recording file reding playback file zeroing recording matrix zeroing playback matrix estimating correlation error: product: nonconformant arguments (op1 is 1045792x1, op2 is 1000336x1) error: evaluating binary operator `.*' near line 26, column 26 error: evaluating argument list element number 1 error: evaluating argument list element number 1 error: evaluating assignment expression near line 26, column 6 error: called from `echo_diagnostic' in file `/home/ole2/echo/echo_wave/echo_diagnostic.m' thanks