(mathematical) help for a 4 channel mixer


    Feb 28 2013 | 7:53 pm
    Hi ! i am working on a patch to move a sound source on 4 speakers using a lcd. The basic concept works, but i'm not happy with the result : being in a corner makes only 1 speaker play (that's what i want), but in the center, the volume is pretty low. I think some maths (log, exp, or something like this ?) would easily solve the problem. If anyone has the chance to have a look... Thanks ! louis

    • Feb 28 2013 | 7:56 pm
      as a side question, is there a way to ignore the mouse position when it goes outside the lcd ?
    • Feb 28 2013 | 8:38 pm
      Have a look at the lcd help file, specifically the tab marked "mousing." You may find some useful hints there.
    • Feb 28 2013 | 8:43 pm
      first question: square root
      second question: control a gate by clipping the coords. i would use if:
      [if $i1>=0 && $i1=0 && $i2 | [gate]
    • Mar 01 2013 | 9:43 am
      A good way to do equal-power panning in MSP is to use a [buffer~] containing a square root or a cosine curve as a look up table.
      Take a look at the MSP spatialisation examples in the Extras/ Examples Overview menu option. I think pan4s and the quad-spatialiser would be useful to you.
      Richard
    • Mar 01 2013 | 10:51 am
      Damn, the quad-spatialiser seems to be just ready-made. Just need to get used to it. Thank you !