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[maxmsp] keyboard tracking / ampscale

Stefan Tiedje Stefan-Tiedje at addcom.de
Tue Sep 4 01:32:01 MDT 2007


Andreas Wetterberg schrieb:
> if you're looking to build something advanced, have a look into Equal 
> Loudness Contours, which would be the psycho-acoustic treatment of this. 
> You should be able to suss the workings from this page, complete with 
> loudness<->hz conversion graph:
> 
> http://www.sfu.ca/sonic-studio/handbook/Equal_Loudness_Contours.html

But this would change with the absolute volume and would need to be 
calibrated to the sound pressur in the room... probably overkill...

There is no offical formula but taste, either have a linear/exponatial 
or whatever curve, or create a coll/table of your personal taste...

It also depends so much on the sound you play...

I guess simple is more effective in this case, but I would incorporate a 
dbtoa object to get it closer to what you hear...

Stefan

#P window setfont "Sans Serif" 9.;
#P window linecount 1;
#P newex 106 260 40 196617 *~;
#P flonum 136 231 35 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
#P newex 136 206 50 196617 dbtoa;
#P number 136 142 35 9 0 0 0 3 0 0 0 221 221 221 222 222 222 0 0 0;
#P newex 136 180 100 196617 scale 36 84 6 -6;
#P user kslider 136 81 54 0 36 48 31 12 0 128 128 128 128 128 128 255 
255 255 0 0 0 0 0 0;
#P connect 4 0 5 1;
#P connect 3 0 4 0;
#P connect 1 0 3 0;
#P connect 2 0 1 0;
#P connect 0 0 2 0;
#P window clipboard copycount 6;


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Stefan Tiedje------------x-------
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