"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@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@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@gmail.com An: "Christof Ressi" christof.ressi@gmx.at Cc: Pd-List pd-list@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@gmx.at
[mailto:christof.ressi@gmx.at]> wrote:I can also recommend this very cheap thing here (around 8€):
adapter[http://www.manhattan-products.com/hi-speed-usb-3-d-sound-adapter]
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@gmail.com[mailto:
daniel.iglesia@gmail.com]>
An: "Theron Trowbridge" <theron.trowbridge@gmail.com[mailto:
theron.trowbridge@gmail.com]>
Cc: "pd-list@lists.iem.at[mailto:pd-list@lists.iem.at]" <
pd-list@lists.iem.at[mailto:pd-list@lists.iem.at]>, "Thomas Grill" < gr@grrrr.org[mailto:gr@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@gmail.com[mailto:theron.trowbridge@gmail.com][mailto: theron.trowbridge@gmail.com[mailto:theron.trowbridge@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%5Bhttp://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@grrrr.org[mailto:
gr@grrrr.org][mailto:gr@grrrr.org[mailto:gr@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@gmail.com[
mailto:jaime.oliver2@gmail.com][mailto:jaime.oliver2@gmail.com[mailto: jaime.oliver2@gmail.com]]>:
Hello everyone!
Has anyone tried to use pd on a pi zero and if so, which audio
interface did you use?
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