30 Apr
2002
30 Apr
'02
9:50 p.m.
hi,
the channel 0 will give the d.c. one would be samplerate/blocksize (with 44.1k this would be 43Hz) 2 would be 86Hz and so on. 512 should be 22050Hz, the nyquist-frequency, but the highest frequency the fft-object of pd gives you is 511 (22007Hz).
very interesting, indeed. i didn't know that. i don't think it's said in any documentation.
is there also a way of changing frequencies range, eventually by modifying some code ???
i'd love that because, in fft as it is, only the first 1/4 of frequencies are really of interest to modify a sound with a tool like the sonogram~.
let me know. [ maybe we'll talk about that ]
cheers,
yves