oh, and else has [pol2car~] and [car2pol~], which are simple vanilla abstractions

Em seg., 29 de mai. de 2023 às 02:34, Alexandre Torres Porres < porres@gmail.com> escreveu:

My Live Electronics tutorial deals with that see https://github.com/porres/Live-Electronics-Tutorial/tree/master/Examples/Par...

as for including rhis in the help file, not really sure...

cheers

Em sex., 26 de mai. de 2023 às 09:12, Peter P. peterparker@fastmail.com escreveu:

...

Hi list,

trying to work on phase angles of spectra I am looking for an easy example with actual Pd objects how to convert a [rfft~] output from real and imaginary to magnitudes and phases, eventually unwrap phases if required, and then convert magnitudes and phases back to a cartesian for [rifft~].

I know about the Dudas/Lippe pvoc tutorials for MaxMSP but can not find much in Pd's documentation. Perhaps I am missing something?

Thanks for any pointers! best, Peter

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hello,

expr~ is in vanilla!

so [expr atan2($f1, $f2)] should work.

cheers

Le 01/06/2023 à 09:55, Peter P. a écrit :

Dear list,

I am still trying to calculate (unwrapped) phases from cartesian complex numbers output by [rfft~] and got pointed to cyclone's [atan~] and [phasewrap~]. I am wondering Is there a way to achieve the same with vanilla pd objects?

Thanks! Peter

• Peter P. peterparker@fastmail.com [2023-05-26 14:10]:

...

Hi list,

trying to work on phase angles of spectra I am looking for an easy example with actual Pd objects how to convert a [rfft~] output from real and imaginary to magnitudes and phases, eventually unwrap phases if required, and then convert magnitudes and phases back to a cartesian for [rifft~].

I know about the Dudas/Lippe pvoc tutorials for MaxMSP but can not find much in Pd's documentation. Perhaps I am missing something?

Thanks for any pointers! best, Peter

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Em qui., 1 de jun. de 2023 às 06:49, Peter P. peterparker@fastmail.com escreveu:

Thanks Cyrille, that's a good hint! I think it should in fact be [expr~ atan2($v2, $v1)] to work with signal vectors blockwise.

yup, and that's what [else/car2pol~] does, which I had referred to before as a vanilla solution.

Now I am wondering if I should/need to unwrap the phases still...

depends on what you're doing and how you are converting things back to cartesian form (else/pol2car~ is vanilla and doesn't need wrapping). you could use wrap~ and just convert to the range from 0-1 in the input and then resize back on the output.

cheers

cheersz, P

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