i am trying to do beat detection and the algorithm i'm following says i need to sum every 1024 samples. right now i am sampling to a table every 43ms (44100/1024) and then trying to use until to loop through and square then sum all values. i think i am missing something in understanding between audio rate and control rate to get this to work.

i've been trying to loop through the tabread~ with until and do my computation. i know how to sum if it were a float but as an audio signal there is no [f~] so i coming up short using [snapshot~] or [env~]. i am sure this has been done before, it is certainly easy in C but pd is stumping me, any ideas?

why dont u use [tabread] instead of the audio version [tabread~], since [until] is not an audio object and works much faster than sample rate.
you could build a counter, using [until] that increments by 1024 until [arraysize] is reached.

okay changed that, and it seems to be working now. i had that before the tabread~ and i was just getting 0's, so i guess i must of had another bug. beat detection still is not working but that problem seems to be solved. thx

do you feel the need to buil your own beat detection algo? i'm not sure, how experienced you are in pd, but maybe you don't know [bonk~]? this could make things easier for you. another approach would be using the output of env~ to feed in one or two moses object, where you can set the threshhold for the peaks. it's not much work and for different applications it works quite well.