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

[m.e.grimm]

hey ed,

this is what im using:

http://www.amazon.com/gp/product/B0069L9PZA/ref=oh_details_o05_s01_i01

its small and i got it because the usb plug is attached to a small
cord so the in/out can be tucked somewhere (under the board?)

anyway... sound out is decent...

still no usable sound input though. as soon as i dont do -noadc the
output gets all crackly. although even though it was crackly i did
plug a guitar into the input and it sounded fine... other than it
being all crackly that is...

oh and this was just using pd test patch.

m

On Fri, Sep 14, 2012 at 6:54 PM, Ed Kelly <morph_2016 at yahoo.co.uk> wrote:
> 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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-- 
____________________
m.e.grimm | m.f.a | ed.m.
megrimm at gmail.com
_________________________________