[PD] else/click in conflict with method 'click' for class 'canvas' when compiling for camomile

[Alexandre Torres Porres]

Hi, we're compiling camomile with externals from ELSE, the only issue I
have is that else/click gets in conflict with an internal "click" class in
Pd (which doesn't happen if it's an external), this happens because of this
line of code
https://github.com/porres/pd-else/blob/master/Classes/Source/click.c#L156

and the warning given by camomile is "*warning: old method 'click' for
class 'canvas' renamed 'click_aliased*"

My plan is to simply disable this external when compiling for camomile,
because it's just not really pertinent to camomile at all, at least I
believe so (this is used to react to clicks on non GOP
abstractions/subpatches). I also believe the conflict won't make a
difference to the functionality of Pd. What do you say?

One way or another, I wanna get rid of the warning and I wonder if there's
a way to not interfere with Pd itself instead of disabling the external. I
guess there's no way, but I hope it doesn't hurt to ask :)

thanks
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Re: [PD] RPI stereo USB audio was: audio interface with multiple ins on raspberry pi

[hans w. koch]

…and i thought, i had learned a new trick here :-)

> Am 07.10.2020 um 17:53 schrieb Dan Wilcox :
> 
> Ja ja, autocorrect... XLR inputs.
> 
>> On Oct 7, 2020, at 5:22 PM, pd-list-requ...@lists.iem.at wrote:
>> 
>> From: Christof Ressi 
>> To: Pd-List 
>> Subject: Re: [PD] RPI stereo USB audio was: audio interface with
>>  multiple ins on raspberry pi
>> Message-ID: <8bee4a0b-e882-bf01-c31c-7856294a6...@christofressi.com>
>> Content-Type: text/plain; charset="utf-8"; Format="flowed"
>> 
>>> but I require XML
>> In my experience, XML works just fine on all Raspberry Pi models :-p
>> 
>> On 07.10.2020 17:06, Dan Wilcox wrote:
>>> Yeah, I know a lot of these small mini-jack boards work, but I require 
>>> XML and jack inputs and stereo jack outputs.
> 
> 
> Dan Wilcox
> @danomatika
> danomatika.com
> robotcowboy.com
> 
> 
> 
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Re: [PD] RPI stereo USB audio was: audio interface with multiple ins on raspberry pi

[Dan Wilcox]

Well, I'll take your experience with a grain of salt. My particular device has 
worked well with everything *but* the RPI 2. I must have bought it around 2006 
and have only needed to re-solder the USB port pads once. As it is usb-audio 
compliant, I imagine it will continue to do so as long as USB 1.1. is 
supported. :)

> On Oct 7, 2020, at 9:26 PM, Kylee Kennedy  wrote:
> 
> I’m going to 100% say it’s the Edirol device not the Rpi. I used another very 
> similar device for Ms Pinky DJ system before Serato. And I literally spent 
> months trying to get that Edirol piece of crap to work consistently on 
> Windows/Linux/osX Is just never worked smoothly. I switched from USB to 
> Firewire for audio interface and 99% of issues went away. Now USB speeds have 
> caught up with Firewire and USB interfaces are actually truly class 
> compliant. But Edirol was only really good for video mixers.
> 
> Good luck with your setup, I’d recommend a newer audio device. 
> 
> Kylee


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Re: [PD] RPI stereo USB audio was: audio interface with multiple ins on raspberry pi

[wolfgang spahn]

stereo input, but super sound, my Raspi-Sound-Hat
https://paperpcb.dernulleffekt.de/doku.php?id=raspberry_boards:raspi-sound-hat
Wolfgang

Am 07.10.20 um 17:21 schrieb Christof Ressi:



but I require XML

In my experience, XML works just fine on all Raspberry Pi models :-p
On 07.10.2020 17:06, Dan Wilcox wrote:
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 > 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 (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 > 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 mailto:kh405.7h3...@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





On Wed, Oct 7, 2020 at 5:18 AM Dan Wilcox mailto:danomat...@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-requ...@lists.iem.at
 wrote:

Date: Tue, 6 Oct 2020 10:48:48 +0800
From: Chris McCormick mailto:ch...@mccormick.cx>>
To: PD List mailto:pd-l...@iem.at>>
Subject: [PD] audio interface with multiple ins on
raspberry pi
Message-ID:
<5f3198d4-6210-4b41-d3a6-2cccbd3aa...@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 
danomatika.com 
robotcowboy.com 



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Re: [PD] RPI stereo USB audio was: audio interface with multiple ins on raspberry pi

[Dan Wilcox]

Ja ja, autocorrect... XLR inputs.

> On Oct 7, 2020, at 5:22 PM, pd-list-requ...@lists.iem.at wrote:
> 
> From: Christof Ressi mailto:i...@christofressi.com>>
> To: Pd-List mailto:pd-list@lists.iem.at>>
> Subject: Re: [PD] RPI stereo USB audio was: audio interface with
>   multiple ins on raspberry pi
> Message-ID: <8bee4a0b-e882-bf01-c31c-7856294a6...@christofressi.com 
> >
> Content-Type: text/plain; charset="utf-8"; Format="flowed"
> 
>> but I require XML
> In my experience, XML works just fine on all Raspberry Pi models :-p
> 
> On 07.10.2020 17:06, Dan Wilcox wrote:
>> Yeah, I know a lot of these small mini-jack boards work, but I require 
>> XML and jack inputs and stereo jack outputs.


Dan Wilcox
@danomatika 
danomatika.com 
robotcowboy.com 



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Re: [PD] RPI stereo USB audio was: audio interface with multiple ins on raspberry pi

[Christof Ressi]

but I require XML

In my experience, XML works just fine on all Raspberry Pi models :-p

On 07.10.2020 17:06, Dan Wilcox wrote:
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 > 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 (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 > 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 mailto:kh405.7h3...@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





On Wed, Oct 7, 2020 at 5:18 AM Dan Wilcox mailto:danomat...@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-requ...@lists.iem.at
 wrote:

Date: Tue, 6 Oct 2020 10:48:48 +0800
From: Chris McCormick mailto:ch...@mccormick.cx>>
To: PD List mailto:pd-l...@iem.at>>
Subject: [PD] audio interface with multiple ins on raspberry pi
Message-ID:
<5f3198d4-6210-4b41-d3a6-2cccbd3aa...@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 
danomatika.com 
robotcowboy.com 



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Re: [PD] RPI stereo USB audio was: audio interface with multiple ins on raspberry pi

[Dan Wilcox]

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  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 
>  (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  > 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 > > 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 
>> 
>>  
>> 
>> 
>> 
>> 
>> On Wed, Oct 7, 2020 at 5:18 AM Dan Wilcox > > 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-requ...@lists.iem.at 
>>>  wrote:
>>> 
>>> Date: Tue, 6 Oct 2020 10:48:48 +0800
>>> From: Chris McCormick mailto:ch...@mccormick.cx>>
>>> To: PD List mailto:pd-l...@iem.at>>
>>> Subject: [PD] audio interface with multiple ins on raspberry pi
>>> Message-ID: <5f3198d4-6210-4b41-d3a6-2cccbd3aa...@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 
>> danomatika.com 
>> robotcowboy.com 
>> 
>> 
>> 
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> 
> 
> Dan Wilcox
> @danomatika 
> danomatika.com 
> robotcowboy.com 
> 
> 
> 
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Re: [PD] RPI stereo USB audio was: audio interface with multiple ins on raspberry pi

[Antoine Rousseau]

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 (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  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  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
>
>
>
>
>
> On Wed, Oct 7, 2020 at 5:18 AM Dan Wilcox  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-requ...@lists.iem.at wrote:
>>
>> Date: Tue, 6 Oct 2020 10:48:48 +0800
>> From: Chris McCormick 
>> To: PD List 
>> Subject: [PD] audio interface with multiple ins on raspberry pi
>> Message-ID: <5f3198d4-6210-4b41-d3a6-2cccbd3aa...@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 
>> danomatika.com
>> robotcowboy.com
>>
>>
>>
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>> https://lists.puredata.info/listinfo/pd-list
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>
> 
> Dan Wilcox
> @danomatika 
> danomatika.com
> robotcowboy.com
>
>
>
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Re: [PD] RPI stereo USB audio was: audio interface with multiple ins on raspberry pi

[Dan Wilcox]

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  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 
> 
>  
> 
> 
> 
> 
> On Wed, Oct 7, 2020 at 5:18 AM Dan Wilcox  > 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-requ...@lists.iem.at 
>>  wrote:
>> 
>> Date: Tue, 6 Oct 2020 10:48:48 +0800
>> From: Chris McCormick mailto:ch...@mccormick.cx>>
>> To: PD List mailto:pd-l...@iem.at>>
>> Subject: [PD] audio interface with multiple ins on raspberry pi
>> Message-ID: <5f3198d4-6210-4b41-d3a6-2cccbd3aa...@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 
> danomatika.com 
> robotcowboy.com 
> 
> 
> 
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Re: [PD] RPI stereo USB audio was: audio interface with multiple ins on raspberry pi

[Josh Moore]

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





On Wed, Oct 7, 2020 at 5:18 AM Dan Wilcox  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-requ...@lists.iem.at wrote:
>
> Date: Tue, 6 Oct 2020 10:48:48 +0800
> From: Chris McCormick 
> To: PD List 
> Subject: [PD] audio interface with multiple ins on raspberry pi
> Message-ID: <5f3198d4-6210-4b41-d3a6-2cccbd3aa...@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 
> danomatika.com
> robotcowboy.com
>
>
>
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Re: [PD] RPI stereo USB audio was: audio interface with multiple ins on raspberry pi

[Dan Wilcox]

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-requ...@lists.iem.at wrote:
> 
> Date: Tue, 6 Oct 2020 10:48:48 +0800
> From: Chris McCormick mailto:ch...@mccormick.cx>>
> To: PD List mailto:pd-l...@iem.at>>
> Subject: [PD] audio interface with multiple ins on raspberry pi
> Message-ID: <5f3198d4-6210-4b41-d3a6-2cccbd3aa...@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 
danomatika.com 
robotcowboy.com 



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Re: [PD] audio interface with multiple outs on raspberry pi

[Josh Moore]

I'm getting a brand new rockpro64 but it will be some time before it gets
here as it's coming from China. It's a little bit more than the rpi but not
by much (twice the price is still peanuts compared to the rest of the
single board space compared to features) and it actually has four i2s
connectors (four stereo pairs, making direct connected ADAT possible) plus
a true onboard codec carrying both spdif and analog, pci-e, and
hexacore (a72/53) with quad core mali 860 for 80 bucks for the 4 gig
model... and no weird Broadcom hardware gotchas.

If i can get reliable multi-channel audio with it, i'll ping this thread
again as it might be useful for someone else.

On Fri, Oct 2, 2020 at 2:24 AM Jakob Laue  wrote:

> Dear 0xFFriends,
> I am looking for an usb audio interface that has at least 8 outputs so
> that I can have at least 4 stereo outputs from within pd. The challenge: I
> am on a raspberry pi (2 and 3). Does someone of you know about an audio
> interface that supplies this number of outputs AND works with a raspi?
>
> Or is it possible to buy 4 cheap audio interfaces with 2 outputs each and
> use the simultaneously?
>
> Best, Jakob
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