Hi Jose,
Isn't a Cepstrum (real or complex) just the fft of the log of an fft (real or complex)? Can't you do this with just (r)fft~ and log~, or am I misunderstanding what you are trying to do?
Jamie
On Mon, 2005-08-15 at 16:00 -0300, José Henrique Padovani wrote:
Hi, I'm working on a real-time cepstrum patch... was using Max/MSP on my University but now I've decided to use PD. So there are small diferences that I'm trying to understand. Max/MSP's fftin~ object has a sync signal that is very usefull to do crossover patches, for example... It makes a signal ramp that goes from 0 to 1 when it computes 0 to N-1 from the fft frame... Now I'm trying to use the same system with a phasor~ in the pd sub- patch where is the block-size but it didn't worked.... If anyone has a simple fft-based corossover patch it would help. Thanks, Z.