Limits with fft node

vvvv beta general
1

hi there,
when i use the fft node to get some sound analysis and i scale my quads for some nice fx i have trouble with setting up good limits.
this is especially the case when having live sound input from an instrument. in my case i tried a violin.
the difference between hushed low tones and loud high tones is always very dramatic.
using the min node doesn’t get me where i want to be and also the map node doesn’t do it for me yet…
any suggestions?
dank gustav

soundtest.v4p (8.1 kB)

2

this is by design of the FFT algorithm. you have linear frequency distribution, whereas music is in logarithmic frequency distribution. to change the dynamics of the FFT you can try the Power (Value) node and a linear spread at the second input.