Yeah, I know a lot of these small mini-jack boards work, but I require XML and jack inputs and stereo jack outputs.
On Oct 7, 2020, at 4:58 PM, Antoine Rousseau antoine@metalu.net wrote:
I've never had much trouble (rpi2/3/3b/3b+/4...) with this kind of thing: https://www.gotronic.fr/art-adaptateur-audio-usb-21834.htm https://www.gotronic.fr/art-adaptateur-audio-usb-21834.htm (warning: unfortunately mono input only) I could run full-duplex Pd at less than 10ms latency (of course it depends on your actual patch).
However older (while more expensive) boards (like Alesis io4) have sometimes been a lot trickier!
So it seems to me that it depends more on the audio device than on the computer model.
Le mer. 7 oct. 2020 à 15:58, Dan Wilcox <danomatika@gmail.com mailto:danomatika@gmail.com> a écrit : Thanks Josh, good to know. Now that the RPI 4 has a controller chip, I should probably try one again.
I had some success for a project using a quad-core Udoo board circa 2013 but it was also more expensive than the Pis at that time and a bit overkill. It *did* however have a USB controller chip.
On Oct 7, 2020, at 3:42 PM, Josh Moore <kh405.7h30ry@gmail.com mailto:kh405.7h30ry@gmail.com> wrote:
The Pi 2 and 3's usb were very much hacks due to the limitations of the Broadcom chip. It's fixed in the Pi4. See here for info: https://www.raspberrypi.org/documentation/hardware/raspberrypi/usb/README.md https://www.raspberrypi.org/documentation/hardware/raspberrypi/usb/README.md
On Wed, Oct 7, 2020 at 5:18 AM Dan Wilcox <danomatika@gmail.com mailto:danomatika@gmail.com> wrote: To add on to Chris's question with a tangent, have any of you had good experience with bog-standard stereo USB Audio interfaces and RPI 3 or 4?
Some years ago now, I tried to use an RPI 2 with my trusty USB 1.1 standard audio interface (Roland Edirol UA-25) which is full-duplex stereo, 2 in / 2 out. I could never get it to work well in full-duplex mode without dropouts, even with a low-latency kernel and other real-time tweaks. In the end, it seemed the USB driver on the RPI was simply not designed for the "isynchronous audio" this requires.
The same device worked well on my original wearable, a Pentium 3 500 MHz machine but with a dedicated USB controller chip.
In the end, I decided to move toward iOS for embedded/wearable (hence PdParty) and the same device works very well at low-latencies on iPads and my (now old) iPhone 5S.
I'd like to still be able to run the setup with alternate systems, so does anyone have experience that the USB drivers have been improved? Thanks in advance
On Oct 6, 2020, at 12:00 PM, pd-list-request@lists.iem.at mailto:pd-list-request@lists.iem.at wrote:
Date: Tue, 6 Oct 2020 10:48:48 +0800 From: Chris McCormick <chris@mccormick.cx mailto:chris@mccormick.cx> To: PD List <pd-list@iem.at mailto:pd-list@iem.at> Subject: [PD] audio interface with multiple ins on raspberry pi Message-ID: <5f3198d4-6210-4b41-d3a6-2cccbd3aae0a@mccormick.cx mailto:5f3198d4-6210-4b41-d3a6-2cccbd3aae0a@mccormick.cx> Content-Type: text/plain; charset=utf-8; format=flowed
Hey all,
Same question as the previous poster but I was wondering about inputs rather than outputs. Ideal solution:
- USB.
- Low cost.
- More than 2 channels in.
- Headphone sized jacks.
- Works with Raspberry Pi.
I've searched but could not find such a beast. Any hints?
Cheers,
Chris.
Dan Wilcox @danomatika http://twitter.com/danomatika danomatika.com http://danomatika.com/ robotcowboy.com http://robotcowboy.com/
Pd-list@lists.iem.at mailto:Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/listinfo/pd-list https://lists.puredata.info/listinfo/pd-list
Dan Wilcox @danomatika http://twitter.com/danomatika danomatika.com http://danomatika.com/ robotcowboy.com http://robotcowboy.com/
Pd-list@lists.iem.at mailto:Pd-list@lists.iem.at mailing list UNSUBSCRIBE and account-management -> https://lists.puredata.info/listinfo/pd-list https://lists.puredata.info/listinfo/pd-list
Dan Wilcox @danomatika http://twitter.com/danomatika danomatika.com http://danomatika.com/ robotcowboy.com http://robotcowboy.com/