[PD] Running the phase vocoder example on the Raspberry Pi

[Ed Kelly]

Hey Cyrille,

How big is the external USB soundcard? I'm really interested in the Pi as a very small device for running Pd, and my USB soundcard is good but really big compared to the form factor of the Pi. I'd be interested if anyone has found a soundcard that works well and has the same compact style - the cheap ebay dongle-sized ones may not be so good, but they are small. Does anyone have a good experience with one of these on a Pi or a regular PC machine?


I'd like to build installations with many Pi's emitting sound all at once, and so a small soundcard is a good thing :)
Ed

 
Gemnotes-0.2: Live music notation for Pure Data, now with dynamics!
http://sharktracks.co.uk/



________________________________
 From: Cyrille Henry <ch at chnry.net>
To: Miller Puckette <msp at ucsd.edu> 
Cc: pd-list <pd-list at iem.at> 
Sent: Thursday, 13 September 2012, 23:36
Subject: Re: [PD] Running the phase vocoder example on the Raspberry Pi
 
using 0.44, we manage to have it running with 25ms audio buffer using an external usb soundcard.
85% cpu about. no clicks.

cheers
c


Le 11/09/2012 19:42, Miller Puckette a écrit :
> One slight tweak: if you type "sudo chmod 4755 /usr/bin/pd" you will
> probably be able to use the mouse clicklessly (at some expense to security!)
>
> This will be unnecessary in release 0.44...
>
> cheers
> Miller
> On Tue, Sep 11, 2012 at 07:32:16PM +0200, Pierre Massat wrote:
>> Dear List,
>>
>> I managed to get the phase vocoder working on my Raspberry Pi, with the
>> standard Raspbian wheezy distro.
>> It works ok under the following conditions :
>> - no GUI activity (even moving the mouse results in awful scratches)
>> - the "delay" in Pd is set to at least 50ms
>> - 224 Mb of RAM is allocated to the CPU.
>>
>> All this using the internal audio output.
>>
>> This is quite encouraging...
>>
>> Cheers,
>>
>> Pierre.
>
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