Yet. Another. poly~. Quention.


    May 04 2011 | 1:59 pm
    Yes, it is Yet Another poly~ Question.
    I think I've done it right, but only one instance within poly~ is playing.
    Each "note" (really, pulls a sample out of part of a buffer) has a bunch of per-note parameters, so [in1] takes a list with "gate" (will be amplitude), buffer starting ms, grain duration (ms), grain rate, pan and (eventually) reverb send amount. The abstraction in poly~ unpacks the list and directs the parameters where they ought to go. OK...
    I'm using a list with random number bounds and a clever [zl iter] --> [zl group] loop to generate the parameter values, then [prepend note] before passing to poly~'s left input.
    print: note 1. 230. 2350. 0.819 -1.4 print: note 1. 342.5 1064. 1.1015 20.1 print: note 1. 852.5 1396. 0.975 15.6 print: note 1. 1072.5 2382. 0.798 7.9
    When the time between grains is long, the sound seems about right so I think all of this is work.
    In poly~'s abstraction, I've connected the leftmost output of [unpack ...] to [thispoly~] -- this should always be nonzero -- so the instance should be marked as busy at note onset. A [line~]'s right output bangs a message (0), which ought to mark the instance non-busy when the grain is over.
    But somehow, all of the (note ...) lists going into poly~ end up talking to the same instance, as if none of them were ever marked busy.
    I'm not new to audio programming, but relatively new to Max, so probably I just missed some fine print somewhere. I did use poly~ successfully once before, but that was with "midinote" lists, not sure if there's something different I ought to do for "note..."
    Thanks! James
    subpatch (named "abstraction7")
    poly~ patch

    • May 04 2011 | 5:35 pm
      Here's an edited version of your subpatch:
    • May 05 2011 | 3:16 am
      Ah. Fine print indeed. (1) --> [thispoly~] is correct, (1.) --> [thispoly~] is not.
      Thanks also for the "mute" tip. I'd seen it in the documentation but hadn't quite parsed through how to do it on my own.
      Great help -- thank you! James