[PD] fft beginner question
cristiano figueirÿfffff3
figocris at yahoo.com.br
Tue Nov 20 05:13:36 CET 2007
Hi list, i'm trying to study fft in Pd and still don't
understand the numbers produced by the analysis.
I'm on Pd "vanilla" 0-40.2 in debian. I just patch
this:
[float]
| \
| \
[osc~] \
| \
| [bang]
| /
[rfft~] / |
\ \ |
\ / \ |
\ / [print~ imaginary]
[print~ real]
and then type "0" and "1" in float box and this
analysis came to terminal:
real:
-39.604 0 0 0 0 0
0 0
0 0 0 0 0 0
0 0
0 0 0 0 0 0
0 0
0 0 0 0 0 0
0 0
0 0 0 0 0 0
0 0
0 0 0 0 0 0
0 0
0 0 0 0 0 0
0 0
0 0 0 0 0 0
0 0
imaginary:
0 -0 -0 -0 -0 -0
-0 -0
-0 -0 -0 -0 -0 -0
-0 -0
-0 -0 -0 -0 -0 -0
-0 -0
-0 -0 -0 -0 -0 -0
-0 -0
0 0 0 0 0 0
0 0
0 0 0 0 0 0
0 0
0 0 0 0 0 0
0 0
0 0 0 0 0 0
0 0
real:
-39.378 -0.003371 -0.0035941 -0.0035693 -0.0035941
-0.0035851 -0.0035941 -0.0035895
-0.003594 -0.0035913 -0.0035941 -0.0035921 -0.0035932
-0.0035928 -0.003594 -0.0035931
-0.0035944 -0.0035932 -0.0035941 -0.0035934 -0.0035943
-0.0035935 -0.0035942 -0.0035938
-0.0035943 -0.0035935 -0.003594 -0.0035933 -0.0035941
-0.0035936 -0.0035942 -0.0035935
-0.0035934 0 0 0 0 0
0 0
0 0 0 0 0 0
0 0
0 0 0 0 0 0
0 0
0 0 0 0 0 0
0 0
imaginary:
0 0.07316 0.036492 0.02423 0.018069 0.014348
0.011848 0.010045
0.0086772 0.007599 0.0067242 0.0059963 0.0053794
0.0048461 0.0043795 0.0039655
0.0035944 0.0032576 0.0029496 0.0026656 0.0024016
0.0021543 0.0019211 0.0016999
0.0014889 0.0012859 0.00109 0.00090034 0.00071485
0.00053315 0.00035397 0.00017647
0 0 0 0 0 0
0 0
0 0 0 0 0 0
0 0
0 0 0 0 0 0
0 0
0 0 0 0 0 0
0 0
What this numbers represents ? Where i can study more?
thanks
cristiano
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