What I have been wanting to see is a nice time vs. frequency/amplitude spectrogram... like something that is very easy to do in matlab with the specgram function. The  [sonogram~] object  in the unauthorized library comes close, but it is difficult to know what is happening according to the picture.

On 11/13/06, Frank Barknecht <fbar@footils.org> wrote:
Hallo,
andrea valle hat gesagt: // andrea valle wrote:

> I was trying to understand if there's a(n easy) way to plot a spectrum.
> I guess it should be easily feasible, as I saw both pd capabilties in
> time domain, both Miller Puckette's figures in the book.
>
> But looking in docs and on the web I got confused and I'm not able to
> find answers to my question.

There are several examples using a spectrum display inside the Pd
docs. For a quick start I would recommend
3.audio.examples/E09.FM.spectrum.pd

Inside of [pd fft] you will see the basic approach which is squaring
the output of [rfft~], adding it and taking the square root.

Ciao
--
Frank Barknecht                 _ ______footils.org_ __goto10.org__

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