<div dir="ltr"><span style="font-size:12.8px">"</span><span style="font-size:12.8px">below 4ms round-trip latency?"</span><div style="font-size:12.8px"><span style="font-size:12.8px"><br></span></div><div style="font-size:12.8px"><span style="font-size:12.8px">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.</span></div><span class="gmail-im" style="font-size:12.8px"><div><span style="font-size:12.8px"><br></span></div><div><span style="font-size:12.8px">"</span><span style="font-size:12.8px">the audioinjector octo card is actually 6 in / 8 out"</span></div><div><span style="font-size:12.8px"><br></span></div></span><div style="font-size:12.8px"><span style="font-size:12.8px">my mistake!</span></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Sep 2, 2017 at 2:29 PM, Thomas Grill <span dir="ltr"><<a href="mailto:gr@grrrr.org" target="_blank">gr@grrrr.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
the audioinjector octo card is actually 6 in / 8 out. It works nicely with new kernels (4.9+).<br>
It should work with the rpi 0 since the GPIO pinout is identical to rpi 2/3.<br>
Its width is like rpi 2/3, but it can still sit on the smaller rpi 0 board.<br>
best, Thomas<br>
<br>
--<br>
Thomas Grill<br>
<a href="http://grrrr.org" rel="noreferrer" target="_blank">http://grrrr.org</a><br>
<div><div class="h5"><br>
<br>
<br>
> Am 02.09.2017 um 20:15 schrieb Christof Ressi <<a href="mailto:christof.ressi@gmx.at">christof.ressi@gmx.at</a>>:<br>
><br>
> wow, this sounds great! must try it out somehow.<br>
><br>
><br>
> Gesendet: Samstag, 02. September 2017 um 20:10 Uhr<br>
> Von: "Peter van Haaften" <<a href="mailto:petervh@gmail.com">petervh@gmail.com</a>><br>
> An: "Christof Ressi" <<a href="mailto:christof.ressi@gmx.at">christof.ressi@gmx.at</a>><br>
> Cc: Pd-List <<a href="mailto:pd-list@lists.iem.at">pd-list@lists.iem.at</a>><br>
> Betreff: Re: [PD] pd on pi zero ?<br>
><br>
> There is a GPIO pi zero soundcard to be released soon by an Australian company called Audio Injector:<br>
><br>
> <a href="http://www.audioinjector.net/rpi-shop" rel="noreferrer" target="_blank">http://www.audioinjector.net/<wbr>rpi-shop</a><br>
><br>
> I have used their stereo card on my PI2 & 3 with great results. . . very low latency (below 4ms!).<br>
><br>
> Also they have a 16 channel card (8in/8out) which is very tempting.<br>
><br>
> Peter<br>
><br>
> On Fri, Sep 1, 2017 at 2:37 PM, Christof Ressi <<a href="mailto:christof.ressi@gmx.at">christof.ressi@gmx.at</a>[mailto:<a href="mailto:christof.ressi@gmx.at"><wbr>christof.ressi@gmx.at</a>]> wrote:I can also recommend this very cheap thing here (around 8€):<br>
><br>
> <a href="http://www.manhattan-products.com/hi-speed-usb-3-d-sound-adapter[http://www.manhattan-products.com/hi-speed-usb-3-d-sound-adapter]" rel="noreferrer" target="_blank">http://www.manhattan-products.<wbr>com/hi-speed-usb-3-d-sound-<wbr>adapter[http://www.manhattan-<wbr>products.com/hi-speed-usb-3-d-<wbr>sound-adapter]</a><br>
> <a href="https://www.neuhold-elektronik.at/catshop/product_info.php?products_id=4925" rel="noreferrer" target="_blank">https://www.neuhold-<wbr>elektronik.at/catshop/product_<wbr>info.php?products_id=4925</a><br>
><br>
> (I think both are more or less the same).<br>
><br>
> 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.<br>
><br>
> Christof<br>
><br>
><br>
><br>
><br>
><br>
><br>
><br>
><br>
> Gesendet: Freitag, 01. September 2017 um 19:38 Uhr<br>
> Von: "Daniel Iglesia" <<a href="mailto:daniel.iglesia@gmail.com">daniel.iglesia@gmail.com</a>[<wbr>mailto:<a href="mailto:daniel.iglesia@gmail.com">daniel.iglesia@gmail.<wbr>com</a>]><br>
> An: "Theron Trowbridge" <<a href="mailto:theron.trowbridge@gmail.com">theron.trowbridge@gmail.com</a>[<wbr>mailto:<a href="mailto:theron.trowbridge@gmail.com">theron.trowbridge@<wbr>gmail.com</a>]><br>
> Cc: "<a href="mailto:pd-list@lists.iem.at">pd-list@lists.iem.at</a>[mailto:<a href="mailto:pd-list@lists.iem.at">p<wbr>d-list@lists.iem.at</a>]" <<a href="mailto:pd-list@lists.iem.at">pd-list@lists.iem.at</a>[mailto:<a href="mailto:pd-list@lists.iem.at">p<wbr>d-list@lists.iem.at</a>]>, "Thomas Grill" <<a href="mailto:gr@grrrr.org">gr@grrrr.org</a>[mailto:<a href="mailto:gr@grrrr.org">gr@grrrr.<wbr>org</a>]><br>
> Betreff: Re: [PD] pd on pi zero ?<br>
><br>
> I got smooth audio stereo output (didn't test input) with a Behringer U-Control UCA202 and a pi-zero.<br>
> 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...<br>
><br>
> On Fri, Sep 1, 2017 at 10:16 AM, Theron Trowbridge <<a href="mailto:theron.trowbridge@gmail.com">theron.trowbridge@gmail.com</a>[<wbr>mailto:<a href="mailto:theron.trowbridge@gmail.com">theron.trowbridge@<wbr>gmail.com</a>][mailto:<a href="mailto:theron.trowbridge@gmail.com">theron.<wbr>trowbridge@gmail.com</a>[mailto:<a href="mailto:theron.trowbridge@gmail.com">th<wbr>eron.trowbridge@gmail.com</a>]]> wrote:<br>
> I would think Pd should work on a zero, though I haven't tried it myself.<br>
><br>
> Miller has some sound card recommendations on the Pd documentation <a href="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]]" rel="noreferrer" target="_blank">http://msp.ucsd.edu/Pd_<wbr>documentation/x3.htm#s1.0[<wbr>http://msp.ucsd.edu/Pd_<wbr>documentation/x3.htm#s1.0][<wbr>http://msp.ucsd.edu/Pd_<wbr>documentation/x3.htm#s1.0[<wbr>http://msp.ucsd.edu/Pd_<wbr>documentation/x3.htm#s1.0]]</a> in the section "Audio hardware in Linux".<br>
><br>
> I have had good luck with the Griffin Technology iMic with the non-zero Raspberry Pi models - <a href="http://amazon.com/gp/product/B003Y5D776[http://amazon.com/gp/product/B003Y5D776][http://amazon.com/gp/product/B003Y5D776[http://amazon.com/gp/product/B003Y5D776]]" rel="noreferrer" target="_blank">amazon.com/gp/product/<wbr>B003Y5D776[http://amazon.com/<wbr>gp/product/B003Y5D776][http://<wbr>amazon.com/gp/product/<wbr>B003Y5D776[http://amazon.com/<wbr>gp/product/B003Y5D776]]</a>, and I think it's based on one of the chipsets that Miller found worked well.<br>
><br>
><br>
> -Theron<br>
> ^<br>
><br>
><br>
><br>
> On Fri, Sep 1, 2017 at 3:51 AM, Thomas Grill <<a href="mailto:gr@grrrr.org">gr@grrrr.org</a>[mailto:<a href="mailto:gr@grrrr.org">gr@grrrr.<wbr>org</a>][mailto:<a href="mailto:gr@grrrr.org">gr@grrrr.org</a>[<wbr>mailto:<a href="mailto:gr@grrrr.org">gr@grrrr.org</a>]]> wrote:Hi Jaime,<br>
> i have successfully used the PhatDAC and other I2S based dacs. Output-only though!<br>
> Will report later on trying the audioinjector octo card which is input/output.<br>
> best, Thomas<br>
><br>
>> Am 31.08.2017 um 04:37 schrieb Jaime Oliver <<a href="mailto:jaime.oliver2@gmail.com">jaime.oliver2@gmail.com</a>[<wbr>mailto:<a href="mailto:jaime.oliver2@gmail.com">jaime.oliver2@gmail.com</a><wbr>][mailto:<a href="mailto:jaime.oliver2@gmail.com">jaime.oliver2@gmail.<wbr>com</a>[mailto:<a href="mailto:jaime.oliver2@gmail.com">jaime.oliver2@<wbr>gmail.com</a>]]>:<br>
>><br>
>> Hello everyone!<br>
>><br>
>> Has anyone tried to use pd on a pi zero and if so, which audio interface did you use?<br>
>><br>
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