[PD] Pd Vanilla on Raspberry Pi

Pierre Massat pimassat at gmail.com
Fri Aug 10 09:10:38 CEST 2012


@ Miller : I think it's Pd 43 something (I use 42 on my latptop and it look
slightly different). Unfortunately the phase vocoder example doesn't work,
I do get some sound out of it but only in small distant chunks. Even the
pitchshifter example doesn't work. The reverb example does work though.
Please note that I tried all of these with the ethernet cable plugged in, I
think it was using a substantial share of the CPU.

@ Richie : I haven't tried the GPIO yet. I find it a bit frustrating when
they say that audio input can be added easily through the GPIO. I don't
think it's true. It would take a lot of hardware around a good ADC, plus I
guess a custom driver. There aren't any DIY audio ADCs on the web that I
know of, except a project by a German guy who builds ADCs and DACs frm

One thing I would like to know is how difficult it would be to run Pd on
this machine at a very low level, with a very minimal OS (I know nothing
about this kind of things). 700MHz is a lot I believe, considering that a
lot of digital audio gear was available before this chips were affordable.
I'm pretty sure that a standard digital multi-effects for instance doesn't
need 700MHz at all. I've been dreaming of building this "Pd box" people
have been talking about for many months now, and I can imagine what a
revolution it would be if it was open source.



2012/8/10 Richie Cyngler <glitchpop at gmail.com>

> This is really excellent news! I haven't tried Raspbian yet. I will as
> soon as I have some time. Has anyone tried accessing the GPIO with Pd yet?
> cheers
> On Fri, Aug 10, 2012 at 7:40 AM, Miller Puckette <msp at ucsd.edu> wrote:
>> Thanks to whoever made this happen -- I think some of the credit goes to
>> Guenter Geiger who packaged Pd for Debian.  I'm curious - what version
>> of Pd cane up?  And can you run the phase vocoder (audio example
>> (doc/3.audio.examples/I07.phase.vocoder.pd) ?  That took $30,000 worth
>> of hardware when I first got the equivalent patch running around 1994.
>> cheers
>> Miller
>> On Thu, Aug 09, 2012 at 09:25:38PM +0000, Pierre Massat wrote:
>> > Dear List,
>> >
>> > I'm happy to inform you (some of you may already know this) that PD
>> vanilla
>> > works out of the box on my new raspberry pi running the standard
>> Raspbian
>> > OS. A simple apt=get install worked like a charm, no need to tweek
>> > anything, I got the sound working right away. The method proposed by
>> TedbOt
>> > recently doesn't seem to be necessary anymore. I'll try pd=extended
>> > sometime soon.
>> >
>> > Cheers,
>> >
>> > Pierre.
>> > Sent from my Raspberry Pi, hahaha !
>> > _______________________________________________
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> --
> Richie
> www.glitchpop.com
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