Hi, thanks for help everyone. Now it's much more clear. I downloaded the "Beginner's Guide to the FFT-objects in Pd" from Frank (http://footils.org/pkg/fft-tut.tgz). And have some more questions:
-> working on patch fft-up-close.pd: I have a blocksize=8 and a samplerate=44100 and all analysis have been printed here:
orig:
0.13004 0.26951 0.40352 0.52934 0.64446 0.74649
0.83341 0.90344
img:
0 1.0317 0.41678 0.17191 0 0
0 0
re:
4.4602 -0.58717 -0.46243 -0.44167 -0.43735 0
0 0
amp:
4.4602 1.1871 0.62253 0.47395 0.43735 0
0 0
amp-normal:
0.27876 0.074192 0.038908 0.029622 0.027334 0
0 0
after-fft:
0.13004 0.26951 0.40352 0.52934 0.64446 0.74649
0.83341 0.90344
=> Ok, with a block of 8 i have data control over 4 partials from the incoming signal rigth? The frequencies are given by multiples of Samplerate/blocksize, starting on F0= 0hz , that's rigth? So, my question is about the normalized amplitudes(amp-normal):
- Why the first is so loud? This is not the F0 (0
hz)?
- With the normalized amplitudes i can estimate wich
partials are more relevants to the resynthesis (wich partials are more louder in a particular spectrum/audio)? Is this rigth?
-> working on "specgate~.pd"
- My Pd (vanilla 0-40.2, on debian) don't recognize
the [>~] object, isn't a native object? Case not where i download this object?
thanks for all.
cristiano
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