Howdy everyone,
Anyone had luck with a Roland/Edirol UA-25 with PD on a RaspberryPi? I've gotten it working fine with output, but enabling input gives me crackles and bad cpu usage. Ideally, I want 2 in / 2 out and this audio interface has worked wonderfully with Linux on older/slower machines in the past. The RPI should have no problem spec-wise to run this with PD using only alsa ...
Dan Wilcox @danomatika danomatika.com robotcowboy.com
HI Dan -
I tried and got even less far than you apparently did, and gave up. It's too bad - the UA 25 is the best USB-powered interface I've found so far. For the Pi I now use small, cheap, recent-vintage ones like the Griffin iMic. (but there are even cheaper ones :) If you have low-impedance mics, my best guess would be to use an impedance matching transformer (lo to hi) and then a "PC mic" (high impedance) interface.
cheers M
On Sat, May 04, 2013 at 10:57:35AM -0400, Dan Wilcox wrote:
Howdy everyone,
Anyone had luck with a Roland/Edirol UA-25 with PD on a RaspberryPi? I've gotten it working fine with output, but enabling input gives me crackles and bad cpu usage. Ideally, I want 2 in / 2 out and this audio interface has worked wonderfully with Linux on older/slower machines in the past. The RPI should have no problem spec-wise to run this with PD using only alsa ...
Dan Wilcox @danomatika danomatika.com robotcowboy.com
Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
For what it's worth, output did work using:
pd-extended -nogui -noadc -audiooutdev 3 test.pd
with 3 being the direct alsa interface as opposed to the alsa plug interface.
It's when I enable the audioindev that I get crackles. I know there are people out there using the UA-25 + jack, but I never needed jack before with an embedded setup.
Part of the issue might be the RPI's real-time kernel. My old wearable setup was far more unstable with a realtime kernel and using a regular kernel with realtime permissions for PD worked far better.
On May 4, 2013, at 11:52 AM, Miller Puckette msp@ucsd.edu wrote:
HI Dan -
I tried and got even less far than you apparently did, and gave up. It's too bad - the UA 25 is the best USB-powered interface I've found so far. For the Pi I now use small, cheap, recent-vintage ones like the Griffin iMic. (but there are even cheaper ones :) If you have low-impedance mics, my best guess would be to use an impedance matching transformer (lo to hi) and then a "PC mic" (high impedance) interface.
cheers M
On Sat, May 04, 2013 at 10:57:35AM -0400, Dan Wilcox wrote:
Howdy everyone,
Anyone had luck with a Roland/Edirol UA-25 with PD on a RaspberryPi? I've gotten it working fine with output, but enabling input gives me crackles and bad cpu usage. Ideally, I want 2 in / 2 out and this audio interface has worked wonderfully with Linux on older/slower machines in the past. The RPI should have no problem spec-wise to run this with PD using only alsa ...
Dan Wilcox @danomatika danomatika.com robotcowboy.com
Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Dan Wilcox @danomatika danomatika.com robotcowboy.com
Hi dan,
Did you try to disable Ethernet turbo or to disable Ethernet at all as describe on linuxaudio.org [1] ? it gives me good result with ESI sound card (UGM-6, see my post on the list from Thursday).
Cheers
a [1] http://wiki.linuxaudio.org/wiki/raspberrypi
-- do it yourself http://antoine.villeret.free.fr
2013/5/4 Dan Wilcox danomatika@gmail.com
For what it's worth, output did work using:
pd-extended -nogui -noadc -audiooutdev 3 test.pd
with 3 being the direct alsa interface as opposed to the alsa plug interface.
It's when I enable the audioindev that I get crackles. I know there are people out there using the UA-25 + jack, but I never needed jack before with an embedded setup.
Part of the issue might be the RPI's real-time kernel. My old wearable setup was far more unstable with a realtime kernel and using a regular kernel with realtime permissions for PD worked far better.
On May 4, 2013, at 11:52 AM, Miller Puckette msp@ucsd.edu wrote:
HI Dan -
I tried and got even less far than you apparently did, and gave up. It's too bad - the UA 25 is the best USB-powered interface I've found so far. For the Pi I now use small, cheap, recent-vintage ones like the Griffin iMic. (but there are even cheaper ones :) If you have low-impedance mics, my best guess would be to use an impedance matching transformer (lo to hi) and then a "PC mic" (high impedance) interface.
cheers M
On Sat, May 04, 2013 at 10:57:35AM -0400, Dan Wilcox wrote:
Howdy everyone,
Anyone had luck with a Roland/Edirol UA-25 with PD on a RaspberryPi? I've gotten it working fine with output, but enabling input gives me crackles and bad cpu usage. Ideally, I want 2 in / 2 out and this audio interface has worked wonderfully with Linux on older/slower machines in the past. The RPI should have no problem spec-wise to run this with PD using only alsa ...
Dan Wilcox @danomatika danomatika.com robotcowboy.com
Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Dan Wilcox @danomatika danomatika.com robotcowboy.com
Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Yes. Ethernet turbo disabled and Ethernet disabled. Disabled cpu freq scaling. Pd set with realtime permissions:
sudo chmod 4755 /usr/bin/pd-extended sudo chmod 4755 /usr/bin/pd
Setting dwc_otg.speed=1 dosen't work for this card and yields an unstable system.
This is pretty disappointing as my old setup was on an embedded 500Mhz Celeron with half the RAM and almost no video memory, yet (so far) was running Pd + alsa better than the superiorly specced PI. The main reason I'm not using the wearable anymore is it's just worn out and trying to fix flexxed pcbs and the resultant random glitches was getting old years ago.
On May 4, 2013, at 12:31 PM, Antoine Villeret antoine.villeret@gmail.com wrote:
Hi dan,
Did you try to disable Ethernet turbo or to disable Ethernet at all as describe on linuxaudio.org [1] ? it gives me good result with ESI sound card (UGM-6, see my post on the list from Thursday).
Cheers
a [1] http://wiki.linuxaudio.org/wiki/raspberrypi
-- do it yourself
http://antoine.villeret.free.fr2013/5/4 Dan Wilcox danomatika@gmail.com For what it's worth, output did work using:
pd-extended -nogui -noadc -audiooutdev 3 test.pd
with 3 being the direct alsa interface as opposed to the alsa plug interface.
It's when I enable the audioindev that I get crackles. I know there are people out there using the UA-25 + jack, but I never needed jack before with an embedded setup.
Part of the issue might be the RPI's real-time kernel. My old wearable setup was far more unstable with a realtime kernel and using a regular kernel with realtime permissions for PD worked far better.
On May 4, 2013, at 11:52 AM, Miller Puckette msp@ucsd.edu wrote:
HI Dan -
I tried and got even less far than you apparently did, and gave up. It's too bad - the UA 25 is the best USB-powered interface I've found so far. For the Pi I now use small, cheap, recent-vintage ones like the Griffin iMic. (but there are even cheaper ones :) If you have low-impedance mics, my best guess would be to use an impedance matching transformer (lo to hi) and then a "PC mic" (high impedance) interface.
cheers M
On Sat, May 04, 2013 at 10:57:35AM -0400, Dan Wilcox wrote:
Howdy everyone,
Anyone had luck with a Roland/Edirol UA-25 with PD on a RaspberryPi? I've gotten it working fine with output, but enabling input gives me crackles and bad cpu usage. Ideally, I want 2 in / 2 out and this audio interface has worked wonderfully with Linux on older/slower machines in the past. The RPI should have no problem spec-wise to run this with PD using only alsa ...
Dan Wilcox @danomatika danomatika.com robotcowboy.com
Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Dan Wilcox @danomatika danomatika.com robotcowboy.com
Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Dan Wilcox @danomatika danomatika.com robotcowboy.com
ok bad news...
what about using another sound card ? UGM6 has 2 hi-Z input (but without no phantom) and 2 outputs it may fit your needs
a
-- do it yourself http://antoine.villeret.free.fr
2013/5/4 Dan Wilcox danomatika@gmail.com
Yes. Ethernet turbo disabled and Ethernet disabled. Disabled cpu freq scaling. Pd set with realtime permissions:
sudo chmod 4755 /usr/bin/pd-extended sudo chmod 4755 /usr/bin/pd
Setting dwc_otg.speed=1 dosen't work for this card and yields an unstable system.
This is pretty disappointing as my old setup was on an embedded 500Mhz Celeron with half the RAM and almost no video memory, yet (so far) was running Pd + alsa better than the superiorly specced PI. The main reason I'm not using the wearable anymore is it's just worn out and trying to fix flexxed pcbs and the resultant random glitches was getting old years ago.
On May 4, 2013, at 12:31 PM, Antoine Villeret antoine.villeret@gmail.com wrote:
Hi dan,
Did you try to disable Ethernet turbo or to disable Ethernet at all as describe on linuxaudio.org [1] ? it gives me good result with ESI sound card (UGM-6, see my post on the list from Thursday).
Cheers
a [1] http://wiki.linuxaudio.org/wiki/raspberrypi
-- do it yourself http://antoine.villeret.free.fr
2013/5/4 Dan Wilcox danomatika@gmail.com
For what it's worth, output did work using:
pd-extended -nogui -noadc -audiooutdev 3 test.pd
with 3 being the direct alsa interface as opposed to the alsa plug interface.
It's when I enable the audioindev that I get crackles. I know there are people out there using the UA-25 + jack, but I never needed jack before with an embedded setup.
Part of the issue might be the RPI's real-time kernel. My old wearable setup was far more unstable with a realtime kernel and using a regular kernel with realtime permissions for PD worked far better.
On May 4, 2013, at 11:52 AM, Miller Puckette msp@ucsd.edu wrote:
HI Dan -
I tried and got even less far than you apparently did, and gave up. It's too bad - the UA 25 is the best USB-powered interface I've found so far. For the Pi I now use small, cheap, recent-vintage ones like the Griffin iMic. (but there are even cheaper ones :) If you have low-impedance mics, my best guess would be to use an impedance matching transformer (lo to hi) and then a "PC mic" (high impedance) interface.
cheers M
On Sat, May 04, 2013 at 10:57:35AM -0400, Dan Wilcox wrote:
Howdy everyone,
Anyone had luck with a Roland/Edirol UA-25 with PD on a RaspberryPi? I've gotten it working fine with output, but enabling input gives me crackles and bad cpu usage. Ideally, I want 2 in / 2 out and this audio interface has worked wonderfully with Linux on older/slower machines in the past. The RPI should have no problem spec-wise to run this with PD using only alsa ...
Dan Wilcox @danomatika danomatika.com robotcowboy.com
Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Dan Wilcox @danomatika danomatika.com robotcowboy.com
Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Dan Wilcox @danomatika danomatika.com robotcowboy.com
No thanks. The UA-25 is bus powered, has two XLR+jack inputs, phantom power, rca/jack outputs, direct monitor, individual channel gain control, master gain control, and in a road tuff metal case. I have two of them, so it makes sense to dump the PI if I can't get it to work with proven linux friendly hardware especially when the pi costs less.
Too bad. Back to iPad now ... :D
On May 4, 2013, at 12:42 PM, Antoine Villeret antoine.villeret@gmail.com wrote:
ok bad news...
what about using another sound card ? UGM6 has 2 hi-Z input (but without no phantom) and 2 outputs it may fit your needs
a
-- do it yourself
http://antoine.villeret.free.fr2013/5/4 Dan Wilcox danomatika@gmail.com Yes. Ethernet turbo disabled and Ethernet disabled. Disabled cpu freq scaling. Pd set with realtime permissions:
sudo chmod 4755 /usr/bin/pd-extended sudo chmod 4755 /usr/bin/pd
Setting dwc_otg.speed=1 dosen't work for this card and yields an unstable system.
This is pretty disappointing as my old setup was on an embedded 500Mhz Celeron with half the RAM and almost no video memory, yet (so far) was running Pd + alsa better than the superiorly specced PI. The main reason I'm not using the wearable anymore is it's just worn out and trying to fix flexxed pcbs and the resultant random glitches was getting old years ago.
On May 4, 2013, at 12:31 PM, Antoine Villeret antoine.villeret@gmail.com wrote:
Hi dan,
Did you try to disable Ethernet turbo or to disable Ethernet at all as describe on linuxaudio.org [1] ? it gives me good result with ESI sound card (UGM-6, see my post on the list from Thursday).
Cheers
a [1] http://wiki.linuxaudio.org/wiki/raspberrypi
-- do it yourself
http://antoine.villeret.free.fr2013/5/4 Dan Wilcox danomatika@gmail.com For what it's worth, output did work using:
pd-extended -nogui -noadc -audiooutdev 3 test.pd
with 3 being the direct alsa interface as opposed to the alsa plug interface.
It's when I enable the audioindev that I get crackles. I know there are people out there using the UA-25 + jack, but I never needed jack before with an embedded setup.
Part of the issue might be the RPI's real-time kernel. My old wearable setup was far more unstable with a realtime kernel and using a regular kernel with realtime permissions for PD worked far better.
On May 4, 2013, at 11:52 AM, Miller Puckette msp@ucsd.edu wrote:
HI Dan -
I tried and got even less far than you apparently did, and gave up. It's too bad - the UA 25 is the best USB-powered interface I've found so far. For the Pi I now use small, cheap, recent-vintage ones like the Griffin iMic. (but there are even cheaper ones :) If you have low-impedance mics, my best guess would be to use an impedance matching transformer (lo to hi) and then a "PC mic" (high impedance) interface.
cheers M
On Sat, May 04, 2013 at 10:57:35AM -0400, Dan Wilcox wrote:
Howdy everyone,
Anyone had luck with a Roland/Edirol UA-25 with PD on a RaspberryPi? I've gotten it working fine with output, but enabling input gives me crackles and bad cpu usage. Ideally, I want 2 in / 2 out and this audio interface has worked wonderfully with Linux on older/slower machines in the past. The RPI should have no problem spec-wise to run this with PD using only alsa ...
Dan Wilcox @danomatika danomatika.com robotcowboy.com
Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Dan Wilcox @danomatika danomatika.com robotcowboy.com
Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Dan Wilcox @danomatika danomatika.com robotcowboy.com
Dan Wilcox @danomatika danomatika.com robotcowboy.com
On 2013-05-04 12:50, Dan Wilcox wrote:
No thanks. The UA-25 is bus powered, has two XLR+jack inputs, phantom power, rca/jack outputs, direct monitor, individual channel gain control, master gain control, and in a road tuff metal case. I have two of them, so it makes sense to dump the PI if I can't get it to work with proven linux friendly hardware especially when the pi costs less.
Too bad. Back to iPad now ... :D
Maybe a beaglebone black: http://beagleboard.org/Products/BeagleBone%20Black
I have a Behringer UCA202 running on a beaglebone with no problems.
Martin
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Antoine Villeret -
Dan Wilcox -
Martin Peach -
Miller Puckette