[PD] Granular Synthesis for Pd Eurorack Module

Chris Chronopoulos chronopoulos.chris at gmail.com
Mon May 18 20:25:46 CEST 2015


How are you invoking the PD command? If you're using an external sound
card, you need to specify which one with the -audiodev flag. If it's a USB
interface, then it's probably -audiodev 3 you want, in my experience.

_chris
On May 18, 2015 1:51 PM, "Pagano, Patrick" <pat at digitalworlds.ufl.edu>
wrote:

>  I am having one annoying issue.
>
> when i run the code i have with a gui the sound works but when i try to
> run pd -nogui i do not get any sound
>
> with the GUI it polls from the arduino and it makes sound i can adjustthe
> potentiometers and it sounds okay because the CPU is pegging at 97-100%
>
> when i run it with no gui it is listing at about 27%
>
> i cannot figure it out
>
>
>  has anyone had this problem before? surely there has got to be someone
> who has run into this?
>
> pd-043.2 on rpi 512 with ardunio Uno
>
> creative sound blaster Xfi GO! Pro USB sound card
>
>
>  HELP!!!
>
>
>
>
>   *Patrick Pagano B.S, M.F.A*
> Audio and Projection Design Faculty
> Digital Worlds Institute
> University of Florida, USA
> (352)294-2020
>   ------------------------------
> *From:* Chris Clepper <cgclepper at gmail.com>
> *Sent:* Monday, May 18, 2015 11:57 AM
> *To:* Pagano, Patrick
> *Cc:* IOhannes m zmoelnig; pd-list at mail.iem.at
> *Subject:* Re: [PD] Granular Synthesis for Pd Eurorack Module
>
>  For messing around the UDOO is fine, but totally unsuitable for
> incorporating in a manufactured audio product.  The Pd part is easy, the
> hardware is incredibly difficult.
>
> I actually design Eurorack modules with Tiptop Audio as my day job, and
> can tell you that making a module using an advanced ARM chip is no easy
> task.  The Nebulae is a quick, dirty hack and it has many issues.  Design
> from the ground up around an A9 or similar chip requires very advanced
> tools (we pay a huge annual sum for high end layout software) and about 10
> years of mixed signal PCB design experience.  Keeping the audio clean would
> take multiple revisions of a 10-12 layer board and you would need to make a
> Eurorack power supply that can handle the current of the digital parts.
>
>  It would take well into 6 figures to get a fully functional production
> ready prototype.
>
> On Mon, May 18, 2015 at 11:42 AM, Pagano, Patrick <
> pat at digitalworlds.ufl.edu> wrote:
>
>>  Looks great Chris, only thing that is weird is that it's a mic input
>> not a line in that i get with the creative card currently. Everything else
>> looks fancy. Would you like my address to send it? :-)
>>
>>
>>  I am going to take the idea to our Innovation Hub at University of
>> Florida and pitch the idea for the module, if it goes they might give me
>> some seed funding --then i can explore some different cards/boards. A
>> friend is lending his BeagleBone Black. Seriously if you want to throw in
>> with  us i'll give you p0ints later :-)
>>
>>
>>  conspiring for a pd Module,
>>
>>
>>   *Patrick Pagano B.S, M.F.A*
>> Audio and Projection Design Faculty
>> Digital Worlds Institute
>> University of Florida, USA
>> (352)294-2020
>>   ------------------------------
>> *From:* Chris Clepper <cgclepper at gmail.com>
>> *Sent:* Monday, May 18, 2015 11:15 AM
>> *To:* Pagano, Patrick
>> *Cc:* IOhannes m zmoelnig; pd-list at mail.iem.at
>> *Subject:* Re: [PD] Granular Synthesis for Pd Eurorack Module
>>
>>    Have you seen the UDOO board that have multi-core A9 CPUs, analog
>> audio I/O and an arduino compatible microcontroller already?
>>
>> http://shop.udoo.org/usa/product/udoo-dual.html
>>
>>
>>
>> On Mon, May 18, 2015 at 11:00 AM, Pagano, Patrick <
>> pat at digitalworlds.ufl.edu> wrote:
>>
>>> Thank You all for your help so far
>>> I have looked at Granola~, granita, my-grainer, dsis_munger and granny a
>>> port of Sakonda's famous Grain2.0 patch by bill orcutt, all of which failed
>>> because of the problem with compilation that Iohannes who is always so
>>> helpful mentions.
>>>
>>> I have chosen to go with Martin's fabulous grainsamplerfx patch and
>>> modify it.
>>> I have also found that ProcesoV8 and Johann's Monolog-x are wonderful
>>> candidates for a true pure data module.
>>>
>>> I contacted Qu-bit Electronix with hopes of a complimentary board for my
>>> research but they are not in a position to help me. They make a wonderful
>>> product called Nebulae for Eurorack but it's just too expensive for my
>>> professor salary right now. I even asked if they had scratch and dent
>>> versions that they might let go of to no avail. It apparently takes pure
>>> data AND Csound code but it seems a little more bent towards Csound, but
>>> again this is just a quick observation.
>>>
>>> I have successfully connected an arduino uno to 6 potentiometers and
>>> poll them with Hans' Arduino2pd patch
>>> I am using a 1in/1out Creative Blaster go USB soundcard and Rpi see it
>>> and loads ALSA for it
>>>
>>> I am experimenting now with getting the tty to be the same when i run
>>> RPI without Xwindows, i have created a few lines in the inittab to
>>> hopefully select that port each time but it's not working correctly. when i
>>> boot into X it polls and updates the Pots but when i only use commandline
>>> they are not talking to each other. The arduino is polling for sure but pd
>>> is not reacting.
>>>
>>> Martin's patch with 6 very simple parameters sounds awesome
>>>
>>> I would like to have  a RT Granular Patch working and then work backwrds
>>> from there because it will probably be the most processor intensive, I
>>> would like to create and awesome "Curtis Filter" like Dave Smith has
>>> released
>>> http://www.davesmithinstruments.com/product/dsm01-curtis-filter-module/
>>>
>>> Is there an example in OD that replicates such a Filter --2/4 pole
>>> resonant low-pass filter module?
>>>
>>> The Nebulae uses samples and a microSD card for loading samples which i
>>> want to try to avoid, i would like to keep everything RT.
>>>
>>> what do you all think?
>>> Please make suggestions of patches you think might be worth testing.
>>> I would like to manufacture the boards and design the prototype this
>>> summer since i cannot afford to direct my research to the Nebulae. This
>>> Fall i will have 30 graduate students coding with me so we will have ALOT
>>> to offer.
>>>
>>> Patrick
>>>
>>>
>>>
>>> Patrick Pagano B.S, M.F.A
>>> Audio and Projection Design Faculty
>>> Digital Worlds Institute
>>> University of Florida, USA
>>> (352)294-2020
>>>
>>> ________________________________________
>>> From: Pd-list <pd-list-bounces at mail.iem.at> on behalf of IOhannes m
>>> zmoelnig <zmoelnig at iem.at>
>>> Sent: Monday, May 18, 2015 4:52 AM
>>> To: pd-list at mail.iem.at
>>> Subject: Re: [PD] Granular Synthesis on liv input?
>>>
>>> On 2015-05-17 19:11, Pagano, Patrick wrote:
>>> > It says that it's the wrong ELF class ELF CLASS64
>>> >
>>>
>>> you cannot use a binary for i386 or amd64 on a Raspberry Pi, which has
>>> an arm processor.
>>> you need to have a binary compiled esp. for this achitecture (read:
>>> compile it yourself).
>>>
>>> fgadmf
>>> IOhannes
>>>
>>>
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>>>
>>
>>
>
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