Csound Csound-dev Csound-tekno Search About

noctdft

Date1997-09-27 17:29
FromJosep M* Comajuncosas
Subjectnoctdft
I´d be very grateful I somebody could explain me this obscure example
taken from the manual...
how do you get that 72-point value? ... 33*2 + 12/2 maybe ? ;-)

asig in     ; get external audio
dsamp   octdown   asig, 6, 180, 0  ; downsample in 6 octaves
wsig1    noctdft   dsamp, .02, 12, 33, 0, 1, 1 ; and calc 72-point dft
(dB)

If I use wsig1 to get the overall strength using specsum, is it someway
equivalent to the original signal amplitude? in db?

^~^^~^^^~^^~^~^^~^^^~^^~^~^^~^^^~^^~^~^^~^^^~^^~
Josep Mª Comajuncosas
e-mail:
            gelida@lix.intercom.es
^~^^~^^^~^^~^~^^~^^^~^^~^~^^~^^^~^^~^~^^~^^^~^^~