Hi there!

I'm an amateur user of Pd and I have some questions for you guys. I'm actually pretty interested on having access to spectrographs in Pure Data but I didn't find an standard object that actually makes that.

I follow the magnificent Andy Farnell's "Sound Design" but unfortunately spectrographs in PD are firstly shown in chapter 13.4 without no real explanation. I downloaded this file (http://aspress.co.uk/sd/ch13/shaping-differentiation.pd) and tried to understand the patches inside, but not really quite got the routines associated with fft~ objects.

Is there any standard spectrograph object which I'm not aware of? How do you usually work with this? Any important reference I'm missing?

Thanks for your time

Did you link the right file? I'm not seeing [fft~] in there anywhere.

Anyway, I don't know of a standard one other than the [pd FFT] patches you find in the audio.examples in the Help Browser, but I personally don't really like that one. I made one that I think is prettier, but it does currently require Pd-extended. It's called [spectrum.mmb~]:

https://github.com/dotmmb/mmb