Hi, I need to generate a sound that starts at about 100Hz then goes up in pitch exponentially to about 2kHz. Can pd do this and if so, how do I do it? Any help's greatly appreciated
I would have thought it was straightforward.
use phasor~ to generate an index for 0 to 1, then evaluate this in an expression that defines the rise in frequency, such as:-
((n*43.6)^2)+100
(This is a 'kind' of exponential rise, though I don't really know what kind of pitch function you really want).
Then pump the resulting number into [osc~]. send the output to [dac~] et voila
----- Original Message ----- From: "Craig A Churchman" cac646@mail.usask.ca To: pd-list@iem.kug.ac.at Sent: Thursday, March 13, 2003 3:15 PM Subject: [PD] Sound Modelling
Hi, I need to generate a sound that starts at about 100Hz then goes up in pitch exponentially to about 2kHz. Can pd do this and if so, how do I do it? Any help's greatly appreciated
--
Craig A Churchman (cac646@mail.usask.ca) College of Engineering, University of Saskatchewan
PD-list mailing list PD-list@iem.kug.ac.at http://iem.kug.ac.at/cgi-bin/mailman/listinfo/pd-list
I read:
Hi, I need to generate a sound that starts at about 100Hz then goes up in pitch exponentially to about 2kHz. Can pd do this and if so, how do I do it? Any help's greatly appreciated
try |expr| or |expr~| there is a helpfile in extra/
HTH
x
Deconstruct the included patch.
Marc
Le jeu 13/03/2003 à 10:15, Craig A Churchman a écrit :
Hi, I need to generate a sound that starts at about 100Hz then goes up in pitch exponentially to about 2kHz. Can pd do this and if so, how do I do it? Any help's greatly appreciated
--
Craig A Churchman (cac646@mail.usask.ca) College of Engineering, University of Saskatchewan
PD-list mailing list PD-list@iem.kug.ac.at http://iem.kug.ac.at/cgi-bin/mailman/listinfo/pd-list
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matthew jones