[PD] pd on pi zero ?

Sat Sep 2 21:11:28 CEST 2017

"below 4ms round-trip latency?"

I have not tested round trip. I've been using the (very clean) ADC to
record into a buffer. That buffer is played back and modulated in real-time
by a variety of sensors. Output has been less than 4ms latency (straight
output through ALSA). I think with more tuning of the Pi, kernel, & Pd I
could perhaps go lower, but it's not necessary for my current project.

"the audioinjector octo card is actually 6 in / 8 out"

my mistake!

On Sat, Sep 2, 2017 at 2:29 PM, Thomas Grill <gr at grrrr.org> wrote:

> Hi,
> the audioinjector octo card is actually 6 in / 8 out. It works nicely with
> new kernels (4.9+).
> It should work with the rpi 0 since the GPIO pinout is identical to rpi
> 2/3.
> Its width is like rpi 2/3, but it can still sit on the smaller rpi 0 board.
> best, Thomas
>
> --
> Thomas Grill
> http://grrrr.org
>
>
>
> > Am 02.09.2017 um 20:15 schrieb Christof Ressi <christof.ressi at gmx.at>:
> >
> > wow, this sounds great! must try it out somehow.
> >
> >
> > Gesendet: Samstag, 02. September 2017 um 20:10 Uhr
> > Von: "Peter van Haaften" <petervh at gmail.com>
> > An: "Christof Ressi" <christof.ressi at gmx.at>
> > Cc: Pd-List <pd-list at lists.iem.at>
> > Betreff: Re: [PD] pd on pi zero ?
> >
> > There is a GPIO pi zero soundcard to be released soon by an Australian
> company called Audio Injector:
> >
> > http://www.audioinjector.net/rpi-shop
> >
> > I have used their stereo card on my PI2 & 3 with great results. . . very
> low latency (below 4ms!).
> >
> > Also they have a 16 channel card (8in/8out) which is very tempting.
> >
> > Peter
> >
> > On Fri, Sep 1, 2017 at 2:37 PM, Christof Ressi <christof.ressi at gmx.at
> [mailto:christof.ressi at gmx.at]> wrote:I can also recommend this very
> cheap thing here (around 8€):
> >
> > http://www.manhattan-products.com/hi-speed-usb-3-d-sound-
> adapter[http://www.manhattan-products.com/hi-speed-usb-3-d-sound-adapter]
> > https://www.neuhold-elektronik.at/catshop/product_
> info.php?products_id=4925
> >
> > (I think both are more or less the same).
> >
> > the latency is quite bad but basically the same as the Behringer UCA202.
> I used it several interactive installations with the Raspberry Pi 3 where I
> didn't need ultra low latencies and it worked well.
> >
> > Christof
> >
> >
> >
> >
> >
> >
> >
> >
> > Gesendet: Freitag, 01. September 2017 um 19:38 Uhr
> > Von: "Daniel Iglesia" <daniel.iglesia at gmail.com[mailto:
> daniel.iglesia at gmail.com]>
> > An: "Theron Trowbridge" <theron.trowbridge at gmail.com[mailto:
> theron.trowbridge at gmail.com]>
> > Cc: "pd-list at lists.iem.at[mailto:pd-list at lists.iem.at]" <
> pd-list at lists.iem.at[mailto:pd-list at lists.iem.at]>, "Thomas Grill" <
> gr at grrrr.org[mailto:gr at grrrr.org]>
> > Betreff: Re: [PD] pd on pi zero ?
> >
> > I got smooth audio stereo output (didn't test input) with a Behringer
> U-Control UCA202 and a pi-zero.
> > I just tried a simple sine wave, I didn't push it to see what happens
> under load...but now I'm curious to revisit it and see...
> >
> > On Fri, Sep 1, 2017 at 10:16 AM, Theron Trowbridge <
> theron.trowbridge at gmail.com[mailto:theron.trowbridge at gmail.com][mailto:
> theron.trowbridge at gmail.com[mailto:theron.trowbridge at gmail.com]]> wrote:
> > I would think Pd should work on a zero, though I haven't tried it myself.
> >
> > Miller has some sound card recommendations on the Pd documentation
> http://msp.ucsd.edu/Pd_documentation/x3.htm#s1.0[http://msp.ucsd.edu/Pd_
> documentation/x3.htm#s1.0][http://msp.ucsd.edu/Pd_
> documentation/x3.htm#s1.0[http://msp.ucsd.edu/Pd_
> documentation/x3.htm#s1.0]] in the section "Audio hardware in Linux".
> >
> > I have had good luck with the Griffin Technology iMic with the non-zero
> Raspberry Pi models - amazon.com/gp/product/B003Y5D776[http://amazon.com/
> gp/product/B003Y5D776][http://amazon.com/gp/product/
> B003Y5D776[http://amazon.com/gp/product/B003Y5D776]], and I think it's
> based on one of the chipsets that Miller found worked well.
> >
> >
> > -Theron
> > ^
> >
> >
> >
> > On Fri, Sep 1, 2017 at 3:51 AM, Thomas Grill <gr at grrrr.org[mailto:
> gr at grrrr.org][mailto:gr at grrrr.org[mailto:gr at grrrr.org]]> wrote:Hi Jaime,
> > i have successfully used the PhatDAC and other I2S based dacs.
> Output-only though!
> > Will report later on trying the audioinjector octo card which is
> input/output.
> > best, Thomas
> >
> >> Am 31.08.2017 um 04:37 schrieb Jaime Oliver <jaime.oliver2 at gmail.com[
> mailto:jaime.oliver2 at gmail.com][mailto:jaime.oliver2 at gmail.com[mailto:
> jaime.oliver2 at gmail.com]]>:
> >>
> >> Hello everyone!
> >>
> >> Has anyone tried to use pd on a pi zero and if so, which audio
> interface did you use?
> >>
> >> J> _______________________________________________
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