Loudness (not amplitude) control


    Sep 11 2012 | 2:41 pm
    Are there any patches/objects out there that attempt to do (psychoacoustic) loudness control, as opposed to [*~] amplitude control?
    Thanks, Eric

    • Sep 11 2012 | 2:58 pm
      [average~] :) u can calculate the differences between rms and normal peak to provide dedicated level control i guess . ive never done that but i saw the compressors logic where "you are" controlling it automatically with reversed ratio - because you want to affect quiet signals not peaks
      ps:if there are some objects.patches.externals i would also like to know
    • Sep 11 2012 | 5:21 pm
      What Eric's asking for is far more complex than average~. can serve as an intro/primer into the topic.
      I suppose one way to patch a loudness control would be with a pfft~ and lookup tables for each bin. Tedious but could be effective. Should I sketch out the idea in any more detail?
      Sorry, I don't know of anything off-the-rack that will do it.
    • Sep 11 2012 | 5:24 pm
      could you sketch it Peter ????? would be fantastic , i love math :D
    • Sep 11 2012 | 9:58 pm
      There's a loudness output in analyzer~, downloadable at the CNMAT site. (There's also a standalone loudness object.) You'd have to compensate for the delay inherent in the analysis, but that should get you started.
    • Sep 11 2012 | 10:12 pm
      Something like: