Re: [PD] raspberry pi user experience

2013-01-29 Thread Peter P. 
* Robert Grah  [2013-01-29 13:30]:
> Hallo,
> 
> does someone has experiences with M-Audio Fast Track Ultra 8R or RME 
> multiface or other devices with 8 or more channels?
> Can the PI handle so much channels?
The HDSP/Multiface solutions require a pci pcie pcmcia or express card
slot.
best, P
> 
> /Robert
> 

> ___
> Pd-list@iem.at mailing list
> UNSUBSCRIBE and account-management -> 
> http://lists.puredata.info/listinfo/pd-list


___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management -> 
http://lists.puredata.info/listinfo/pd-list

Re: [PD] raspberry pi user experience

2013-01-29 Thread Robert Grah 
Hallo,

does someone has experiences with M-Audio Fast Track Ultra 8R or RME multiface 
or other devices with 8 or more channels?
Can the PI handle so much channels?

/Robert

___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management -> 
http://lists.puredata.info/listinfo/pd-list

Re: [PD] raspberry pi user experience

2013-01-29 Thread Cyrille Henry 

hello,

both 44.1K and 48K works.
cheers
c


Le 29/01/2013 10:32, Peter P. a écrit :

* Cyrille Henry  [2013-01-28 10:41]:

hello,
i use the beringer UCA222 and got it to work with 5ms audio bufer with the pi 
in full duplex.

great news! which sampling rate do you run by the way? I suppose the hardware
AD/DAcs are fixed to 48k. I never completely understood this, and
should actually ask the LAU list, but wonder where the resampling in
Linux is done when you run Pd at 44k1.


cheers

Santé!

P

c


Le 27/01/2013 20:40, katja a écrit :

Both are already mentioned but I'd like to confirm that these do work
on RPi (provided the USB speed is lowered as described in this
thread): iMic and Behringer UCA202.

Katja


On Sun, Jan 27, 2013 at 5:51 PM, Miller Puckette  wrote:

I heard suggestions on the Pi sites (I forget exactly where) that the USB
2.0 implementation isn't compatible with a large variety of USB 2.0 devices
(including for instance the Griffin iMic).  So I don't think the issue is
the load that USB 2.0 puts on the Pi, it's simply bugs.  But I gather nobody
is in a hurry to get them fixed - the attitude in Cambridge is that it's the
devices' fault, not the Pi's.

I have beem suspecting that my keyboard is also incompatible with the Pi at
USB 1.1 speed.  I haven't tried other keyboards yet since I'm usually happy
to ssh in without any other USB devices (besides audio and ethernet)
talking to the Pi.  But this is not always true so soon enough I'll have to
try other keyboards so I can get the thing working as a standalone computer.

cheers
Miller

On Sun, Jan 27, 2013 at 04:50:16PM +0100, katja wrote:

Thanks Pierre and Cyrille.

It turned out that various keyboards and mouse just kill USB (when at
1.1) on the Pi. 'Keysonic Wireless Trackball Keyboard' happens to work
well. The lower USB speed brings substantial improvement of the audio
indeed. Now a real realtime kernel, that would probably improve things
further.

Katja



On Sun, Jan 27, 2013 at 2:33 PM, Cyrille Henry  wrote:

i put it in front of everything :

dwc_otg.speed=1 dwc_otg.lpm_enable=0 console=ttyAMA0,115200
kgdboc=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4
elevator=deadline rootwait

cheers
c

Le 27/01/2013 11:42, katja a écrit :


Hello,

Some people seem to have result with setting lower USB speed on the
Pi, but when I try this, the Pi doesn't even respond to keyboard
anymore. Checking /boot/cmdline.txt with another computer, I'm sure it
is not due to a typo. But the order of settings may be important?
Could anyone copy the full text of /boot/cmdline.txt for me, if you
have keyboard working with lowered USB speed? (I'm not talking about
good audio yet).

Thanks,
Katja


On Sat, Jan 26, 2013 at 8:54 PM, Thomas Grill  wrote:


Message to self: it seems that one has to wait for updated RPi USB
firmware/drivers to get USB 2.0 audio going.
Obviously the "isochronous transfer mode" as used by audio interfaces is
currently broken.
gr~~~


2013/1/26 Thomas Grill 



Hi all,
for my USB audio class 2.0 device "Native Instruments Komplete Audio 6"
i
can't report such good news.
There is constant irregular crackling, not only with Pd but also with
aplay etc. It seems related to USB bandwidth, since turning on and off
the
inputs in Pd changes crackling frequency. The dwc_otg.speed setting is
not
usable for me, since the device is dependent on USB 2.0 operation.
Any experiences with USB 2.0 audio devices under ALSA/rpi?
thanks,
gr~~~


2013/1/26 Cyrille Henry 



hello,

I just install raspbian release and update it. then install pd 0.44.1
(without any specific optimisation flag)

I made the standard optimisation :
* - rtprio 99
* - memlock 10
in /etc/security/limits.conf

and
dwc_otg.speed=1
in /boot/cmdline.txt
as suggested by miller

I use a uca222 beringher (that cost about 20 or 25€) sound card.
trying the test audio and midi, there is no click with 10ms audio
buffer
(with adc~ enable).

this is with usb keyboard / mouse combo plugged and graphical interface
(for the system and for pd).

without X, audiobuf can be as low as 5ms

having a usb keyboard did not change anything for me.

i'm very happy

cheers
c

___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management ->
http://lists.puredata.info/listinfo/pd-list






--
Thomas Grill
http://g.org






--
Thomas Grill
http://g.org

___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management ->
http://lists.puredata.info/listinfo/pd-list



___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management ->
http://lists.puredata.info/listinfo/pd-list





___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management -> 
http://lists.puredata.info/listinfo/pd-list


___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-

Re: [PD] raspberry pi user experience

2013-01-29 Thread Peter P. 
* Cyrille Henry  [2013-01-28 10:41]:
> hello,
> i use the beringer UCA222 and got it to work with 5ms audio bufer with the pi 
> in full duplex.
great news! which sampling rate do you run by the way? I suppose the hardware
AD/DAcs are fixed to 48k. I never completely understood this, and
should actually ask the LAU list, but wonder where the resampling in
Linux is done when you run Pd at 44k1.

> cheers
Santé!

P
> c
> 
> 
> Le 27/01/2013 20:40, katja a écrit :
> >Both are already mentioned but I'd like to confirm that these do work
> >on RPi (provided the USB speed is lowered as described in this
> >thread): iMic and Behringer UCA202.
> >
> >Katja
> >
> >
> >On Sun, Jan 27, 2013 at 5:51 PM, Miller Puckette  wrote:
> >>I heard suggestions on the Pi sites (I forget exactly where) that the USB
> >>2.0 implementation isn't compatible with a large variety of USB 2.0 devices
> >>(including for instance the Griffin iMic).  So I don't think the issue is
> >>the load that USB 2.0 puts on the Pi, it's simply bugs.  But I gather nobody
> >>is in a hurry to get them fixed - the attitude in Cambridge is that it's the
> >>devices' fault, not the Pi's.
> >>
> >>I have beem suspecting that my keyboard is also incompatible with the Pi at
> >>USB 1.1 speed.  I haven't tried other keyboards yet since I'm usually happy
> >>to ssh in without any other USB devices (besides audio and ethernet)
> >>talking to the Pi.  But this is not always true so soon enough I'll have to
> >>try other keyboards so I can get the thing working as a standalone computer.
> >>
> >>cheers
> >>Miller
> >>
> >>On Sun, Jan 27, 2013 at 04:50:16PM +0100, katja wrote:
> >>>Thanks Pierre and Cyrille.
> >>>
> >>>It turned out that various keyboards and mouse just kill USB (when at
> >>>1.1) on the Pi. 'Keysonic Wireless Trackball Keyboard' happens to work
> >>>well. The lower USB speed brings substantial improvement of the audio
> >>>indeed. Now a real realtime kernel, that would probably improve things
> >>>further.
> >>>
> >>>Katja
> >>>
> >>>
> >>>
> >>>On Sun, Jan 27, 2013 at 2:33 PM, Cyrille Henry  wrote:
> i put it in front of everything :
> 
> dwc_otg.speed=1 dwc_otg.lpm_enable=0 console=ttyAMA0,115200
> kgdboc=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4
> elevator=deadline rootwait
> 
> cheers
> c
> 
> Le 27/01/2013 11:42, katja a écrit :
> 
> >Hello,
> >
> >Some people seem to have result with setting lower USB speed on the
> >Pi, but when I try this, the Pi doesn't even respond to keyboard
> >anymore. Checking /boot/cmdline.txt with another computer, I'm sure it
> >is not due to a typo. But the order of settings may be important?
> >Could anyone copy the full text of /boot/cmdline.txt for me, if you
> >have keyboard working with lowered USB speed? (I'm not talking about
> >good audio yet).
> >
> >Thanks,
> >Katja
> >
> >
> >On Sat, Jan 26, 2013 at 8:54 PM, Thomas Grill  wrote:
> >>
> >>Message to self: it seems that one has to wait for updated RPi USB
> >>firmware/drivers to get USB 2.0 audio going.
> >>Obviously the "isochronous transfer mode" as used by audio interfaces is
> >>currently broken.
> >>gr~~~
> >>
> >>
> >>2013/1/26 Thomas Grill 
> >>>
> >>>
> >>>Hi all,
> >>>for my USB audio class 2.0 device "Native Instruments Komplete Audio 6"
> >>>i
> >>>can't report such good news.
> >>>There is constant irregular crackling, not only with Pd but also with
> >>>aplay etc. It seems related to USB bandwidth, since turning on and off
> >>>the
> >>>inputs in Pd changes crackling frequency. The dwc_otg.speed setting is
> >>>not
> >>>usable for me, since the device is dependent on USB 2.0 operation.
> >>>Any experiences with USB 2.0 audio devices under ALSA/rpi?
> >>>thanks,
> >>>gr~~~
> >>>
> >>>
> >>>2013/1/26 Cyrille Henry 
> 
> 
> hello,
> 
> I just install raspbian release and update it. then install pd 0.44.1
> (without any specific optimisation flag)
> 
> I made the standard optimisation :
> * - rtprio 99
> * - memlock 10
> in /etc/security/limits.conf
> 
> and
> dwc_otg.speed=1
> in /boot/cmdline.txt
> as suggested by miller
> 
> I use a uca222 beringher (that cost about 20 or 25€) sound card.
> trying the test audio and midi, there is no click with 10ms audio
> buffer
> (with adc~ enable).
> 
> this is with usb keyboard / mouse combo plugged and graphical 
> interface
> (for the system and for pd).
> 
> without X, audiobuf can be as low as 5ms
> 
> having a usb keyboard did not change anything for me.
> 
> i'm very happy
> 
> cheers
> c
> >>

Re: [PD] raspberry pi user experience

2013-01-28 Thread Cyrille Henry 

I also have a keyboard that did not work, and a usb flash that force a reboot...
cheers
c


Le 27/01/2013 17:51, Miller Puckette a écrit :

I heard suggestions on the Pi sites (I forget exactly where) that the USB
2.0 implementation isn't compatible with a large variety of USB 2.0 devices
(including for instance the Griffin iMic).  So I don't think the issue is
the load that USB 2.0 puts on the Pi, it's simply bugs.  But I gather nobody
is in a hurry to get them fixed - the attitude in Cambridge is that it's the
devices' fault, not the Pi's.

I have beem suspecting that my keyboard is also incompatible with the Pi at
USB 1.1 speed.  I haven't tried other keyboards yet since I'm usually happy
to ssh in without any other USB devices (besides audio and ethernet)
talking to the Pi.  But this is not always true so soon enough I'll have to
try other keyboards so I can get the thing working as a standalone computer.

cheers
Miller

On Sun, Jan 27, 2013 at 04:50:16PM +0100, katja wrote:

Thanks Pierre and Cyrille.

It turned out that various keyboards and mouse just kill USB (when at
1.1) on the Pi. 'Keysonic Wireless Trackball Keyboard' happens to work
well. The lower USB speed brings substantial improvement of the audio
indeed. Now a real realtime kernel, that would probably improve things
further.

Katja



On Sun, Jan 27, 2013 at 2:33 PM, Cyrille Henry  wrote:

i put it in front of everything :

dwc_otg.speed=1 dwc_otg.lpm_enable=0 console=ttyAMA0,115200
kgdboc=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4
elevator=deadline rootwait

cheers
c

Le 27/01/2013 11:42, katja a écrit :


Hello,

Some people seem to have result with setting lower USB speed on the
Pi, but when I try this, the Pi doesn't even respond to keyboard
anymore. Checking /boot/cmdline.txt with another computer, I'm sure it
is not due to a typo. But the order of settings may be important?
Could anyone copy the full text of /boot/cmdline.txt for me, if you
have keyboard working with lowered USB speed? (I'm not talking about
good audio yet).

Thanks,
Katja


On Sat, Jan 26, 2013 at 8:54 PM, Thomas Grill  wrote:


Message to self: it seems that one has to wait for updated RPi USB
firmware/drivers to get USB 2.0 audio going.
Obviously the "isochronous transfer mode" as used by audio interfaces is
currently broken.
gr~~~


2013/1/26 Thomas Grill 



Hi all,
for my USB audio class 2.0 device "Native Instruments Komplete Audio 6"
i
can't report such good news.
There is constant irregular crackling, not only with Pd but also with
aplay etc. It seems related to USB bandwidth, since turning on and off
the
inputs in Pd changes crackling frequency. The dwc_otg.speed setting is
not
usable for me, since the device is dependent on USB 2.0 operation.
Any experiences with USB 2.0 audio devices under ALSA/rpi?
thanks,
gr~~~


2013/1/26 Cyrille Henry 



hello,

I just install raspbian release and update it. then install pd 0.44.1
(without any specific optimisation flag)

I made the standard optimisation :
* - rtprio 99
* - memlock 10
in /etc/security/limits.conf

and
dwc_otg.speed=1
in /boot/cmdline.txt
as suggested by miller

I use a uca222 beringher (that cost about 20 or 25€) sound card.
trying the test audio and midi, there is no click with 10ms audio
buffer
(with adc~ enable).

this is with usb keyboard / mouse combo plugged and graphical interface
(for the system and for pd).

without X, audiobuf can be as low as 5ms

having a usb keyboard did not change anything for me.

i'm very happy

cheers
c

___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management ->
http://lists.puredata.info/listinfo/pd-list






--
Thomas Grill
http://g.org






--
Thomas Grill
http://g.org

___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management ->
http://lists.puredata.info/listinfo/pd-list



___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management ->
http://lists.puredata.info/listinfo/pd-list





___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management -> 
http://lists.puredata.info/listinfo/pd-list


___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management -> 
http://lists.puredata.info/listinfo/pd-list



___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management -> 
http://lists.puredata.info/listinfo/pd-list

Re: [PD] raspberry pi user experience

2013-01-28 Thread Cyrille Henry 

hello,
i use the beringer UCA222 and got it to work with 5ms audio bufer with the pi 
in full duplex.
cheers
c


Le 27/01/2013 20:40, katja a écrit :

Both are already mentioned but I'd like to confirm that these do work
on RPi (provided the USB speed is lowered as described in this
thread): iMic and Behringer UCA202.

Katja


On Sun, Jan 27, 2013 at 5:51 PM, Miller Puckette  wrote:

I heard suggestions on the Pi sites (I forget exactly where) that the USB
2.0 implementation isn't compatible with a large variety of USB 2.0 devices
(including for instance the Griffin iMic).  So I don't think the issue is
the load that USB 2.0 puts on the Pi, it's simply bugs.  But I gather nobody
is in a hurry to get them fixed - the attitude in Cambridge is that it's the
devices' fault, not the Pi's.

I have beem suspecting that my keyboard is also incompatible with the Pi at
USB 1.1 speed.  I haven't tried other keyboards yet since I'm usually happy
to ssh in without any other USB devices (besides audio and ethernet)
talking to the Pi.  But this is not always true so soon enough I'll have to
try other keyboards so I can get the thing working as a standalone computer.

cheers
Miller

On Sun, Jan 27, 2013 at 04:50:16PM +0100, katja wrote:

Thanks Pierre and Cyrille.

It turned out that various keyboards and mouse just kill USB (when at
1.1) on the Pi. 'Keysonic Wireless Trackball Keyboard' happens to work
well. The lower USB speed brings substantial improvement of the audio
indeed. Now a real realtime kernel, that would probably improve things
further.

Katja



On Sun, Jan 27, 2013 at 2:33 PM, Cyrille Henry  wrote:

i put it in front of everything :

dwc_otg.speed=1 dwc_otg.lpm_enable=0 console=ttyAMA0,115200
kgdboc=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4
elevator=deadline rootwait

cheers
c

Le 27/01/2013 11:42, katja a écrit :


Hello,

Some people seem to have result with setting lower USB speed on the
Pi, but when I try this, the Pi doesn't even respond to keyboard
anymore. Checking /boot/cmdline.txt with another computer, I'm sure it
is not due to a typo. But the order of settings may be important?
Could anyone copy the full text of /boot/cmdline.txt for me, if you
have keyboard working with lowered USB speed? (I'm not talking about
good audio yet).

Thanks,
Katja


On Sat, Jan 26, 2013 at 8:54 PM, Thomas Grill  wrote:


Message to self: it seems that one has to wait for updated RPi USB
firmware/drivers to get USB 2.0 audio going.
Obviously the "isochronous transfer mode" as used by audio interfaces is
currently broken.
gr~~~


2013/1/26 Thomas Grill 



Hi all,
for my USB audio class 2.0 device "Native Instruments Komplete Audio 6"
i
can't report such good news.
There is constant irregular crackling, not only with Pd but also with
aplay etc. It seems related to USB bandwidth, since turning on and off
the
inputs in Pd changes crackling frequency. The dwc_otg.speed setting is
not
usable for me, since the device is dependent on USB 2.0 operation.
Any experiences with USB 2.0 audio devices under ALSA/rpi?
thanks,
gr~~~


2013/1/26 Cyrille Henry 



hello,

I just install raspbian release and update it. then install pd 0.44.1
(without any specific optimisation flag)

I made the standard optimisation :
* - rtprio 99
* - memlock 10
in /etc/security/limits.conf

and
dwc_otg.speed=1
in /boot/cmdline.txt
as suggested by miller

I use a uca222 beringher (that cost about 20 or 25€) sound card.
trying the test audio and midi, there is no click with 10ms audio
buffer
(with adc~ enable).

this is with usb keyboard / mouse combo plugged and graphical interface
(for the system and for pd).

without X, audiobuf can be as low as 5ms

having a usb keyboard did not change anything for me.

i'm very happy

cheers
c

___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management ->
http://lists.puredata.info/listinfo/pd-list






--
Thomas Grill
http://g.org






--
Thomas Grill
http://g.org

___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management ->
http://lists.puredata.info/listinfo/pd-list



___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management ->
http://lists.puredata.info/listinfo/pd-list





___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management -> 
http://lists.puredata.info/listinfo/pd-list


___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management -> 
http://lists.puredata.info/listinfo/pd-list



___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management -> 
http://lists.puredata.info/listinfo/pd-list

Re: [PD] raspberry pi user experience

2013-01-27 Thread katja 
Both are already mentioned but I'd like to confirm that these do work
on RPi (provided the USB speed is lowered as described in this
thread): iMic and Behringer UCA202.

Katja


On Sun, Jan 27, 2013 at 5:51 PM, Miller Puckette  wrote:
> I heard suggestions on the Pi sites (I forget exactly where) that the USB
> 2.0 implementation isn't compatible with a large variety of USB 2.0 devices
> (including for instance the Griffin iMic).  So I don't think the issue is
> the load that USB 2.0 puts on the Pi, it's simply bugs.  But I gather nobody
> is in a hurry to get them fixed - the attitude in Cambridge is that it's the
> devices' fault, not the Pi's.
>
> I have beem suspecting that my keyboard is also incompatible with the Pi at
> USB 1.1 speed.  I haven't tried other keyboards yet since I'm usually happy
> to ssh in without any other USB devices (besides audio and ethernet)
> talking to the Pi.  But this is not always true so soon enough I'll have to
> try other keyboards so I can get the thing working as a standalone computer.
>
> cheers
> Miller
>
> On Sun, Jan 27, 2013 at 04:50:16PM +0100, katja wrote:
>> Thanks Pierre and Cyrille.
>>
>> It turned out that various keyboards and mouse just kill USB (when at
>> 1.1) on the Pi. 'Keysonic Wireless Trackball Keyboard' happens to work
>> well. The lower USB speed brings substantial improvement of the audio
>> indeed. Now a real realtime kernel, that would probably improve things
>> further.
>>
>> Katja
>>
>>
>>
>> On Sun, Jan 27, 2013 at 2:33 PM, Cyrille Henry  wrote:
>> > i put it in front of everything :
>> >
>> > dwc_otg.speed=1 dwc_otg.lpm_enable=0 console=ttyAMA0,115200
>> > kgdboc=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4
>> > elevator=deadline rootwait
>> >
>> > cheers
>> > c
>> >
>> > Le 27/01/2013 11:42, katja a écrit :
>> >
>> >> Hello,
>> >>
>> >> Some people seem to have result with setting lower USB speed on the
>> >> Pi, but when I try this, the Pi doesn't even respond to keyboard
>> >> anymore. Checking /boot/cmdline.txt with another computer, I'm sure it
>> >> is not due to a typo. But the order of settings may be important?
>> >> Could anyone copy the full text of /boot/cmdline.txt for me, if you
>> >> have keyboard working with lowered USB speed? (I'm not talking about
>> >> good audio yet).
>> >>
>> >> Thanks,
>> >> Katja
>> >>
>> >>
>> >> On Sat, Jan 26, 2013 at 8:54 PM, Thomas Grill  wrote:
>> >>>
>> >>> Message to self: it seems that one has to wait for updated RPi USB
>> >>> firmware/drivers to get USB 2.0 audio going.
>> >>> Obviously the "isochronous transfer mode" as used by audio interfaces is
>> >>> currently broken.
>> >>> gr~~~
>> >>>
>> >>>
>> >>> 2013/1/26 Thomas Grill 
>> 
>> 
>>  Hi all,
>>  for my USB audio class 2.0 device "Native Instruments Komplete Audio 6"
>>  i
>>  can't report such good news.
>>  There is constant irregular crackling, not only with Pd but also with
>>  aplay etc. It seems related to USB bandwidth, since turning on and off
>>  the
>>  inputs in Pd changes crackling frequency. The dwc_otg.speed setting is
>>  not
>>  usable for me, since the device is dependent on USB 2.0 operation.
>>  Any experiences with USB 2.0 audio devices under ALSA/rpi?
>>  thanks,
>>  gr~~~
>> 
>> 
>>  2013/1/26 Cyrille Henry 
>> >
>> >
>> > hello,
>> >
>> > I just install raspbian release and update it. then install pd 0.44.1
>> > (without any specific optimisation flag)
>> >
>> > I made the standard optimisation :
>> > * - rtprio 99
>> > * - memlock 10
>> > in /etc/security/limits.conf
>> >
>> > and
>> > dwc_otg.speed=1
>> > in /boot/cmdline.txt
>> > as suggested by miller
>> >
>> > I use a uca222 beringher (that cost about 20 or 25€) sound card.
>> > trying the test audio and midi, there is no click with 10ms audio
>> > buffer
>> > (with adc~ enable).
>> >
>> > this is with usb keyboard / mouse combo plugged and graphical interface
>> > (for the system and for pd).
>> >
>> > without X, audiobuf can be as low as 5ms
>> >
>> > having a usb keyboard did not change anything for me.
>> >
>> > i'm very happy
>> >
>> > cheers
>> > c
>> >
>> > ___
>> > Pd-list@iem.at mailing list
>> > UNSUBSCRIBE and account-management ->
>> > http://lists.puredata.info/listinfo/pd-list
>> 
>> 
>> 
>> 
>> 
>>  --
>>  Thomas Grill
>>  http://g.org
>> >>>
>> >>>
>> >>>
>> >>>
>> >>>
>> >>> --
>> >>> Thomas Grill
>> >>> http://g.org
>> >>>
>> >>> ___
>> >>> Pd-list@iem.at mailing list
>> >>> UNSUBSCRIBE and account-management ->
>> >>> http://lists.puredata.info/listinfo/pd-list
>> >>>
>> >>
>> >> ___
>> >> Pd-list@iem.at mailing list
>>

Re: [PD] raspberry pi user experience

2013-01-27 Thread Miller Puckette 
I heard suggestions on the Pi sites (I forget exactly where) that the USB
2.0 implementation isn't compatible with a large variety of USB 2.0 devices
(including for instance the Griffin iMic).  So I don't think the issue is
the load that USB 2.0 puts on the Pi, it's simply bugs.  But I gather nobody
is in a hurry to get them fixed - the attitude in Cambridge is that it's the
devices' fault, not the Pi's.

I have beem suspecting that my keyboard is also incompatible with the Pi at
USB 1.1 speed.  I haven't tried other keyboards yet since I'm usually happy
to ssh in without any other USB devices (besides audio and ethernet)
talking to the Pi.  But this is not always true so soon enough I'll have to
try other keyboards so I can get the thing working as a standalone computer.

cheers
Miller

On Sun, Jan 27, 2013 at 04:50:16PM +0100, katja wrote:
> Thanks Pierre and Cyrille.
> 
> It turned out that various keyboards and mouse just kill USB (when at
> 1.1) on the Pi. 'Keysonic Wireless Trackball Keyboard' happens to work
> well. The lower USB speed brings substantial improvement of the audio
> indeed. Now a real realtime kernel, that would probably improve things
> further.
> 
> Katja
> 
> 
> 
> On Sun, Jan 27, 2013 at 2:33 PM, Cyrille Henry  wrote:
> > i put it in front of everything :
> >
> > dwc_otg.speed=1 dwc_otg.lpm_enable=0 console=ttyAMA0,115200
> > kgdboc=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4
> > elevator=deadline rootwait
> >
> > cheers
> > c
> >
> > Le 27/01/2013 11:42, katja a écrit :
> >
> >> Hello,
> >>
> >> Some people seem to have result with setting lower USB speed on the
> >> Pi, but when I try this, the Pi doesn't even respond to keyboard
> >> anymore. Checking /boot/cmdline.txt with another computer, I'm sure it
> >> is not due to a typo. But the order of settings may be important?
> >> Could anyone copy the full text of /boot/cmdline.txt for me, if you
> >> have keyboard working with lowered USB speed? (I'm not talking about
> >> good audio yet).
> >>
> >> Thanks,
> >> Katja
> >>
> >>
> >> On Sat, Jan 26, 2013 at 8:54 PM, Thomas Grill  wrote:
> >>>
> >>> Message to self: it seems that one has to wait for updated RPi USB
> >>> firmware/drivers to get USB 2.0 audio going.
> >>> Obviously the "isochronous transfer mode" as used by audio interfaces is
> >>> currently broken.
> >>> gr~~~
> >>>
> >>>
> >>> 2013/1/26 Thomas Grill 
> 
> 
>  Hi all,
>  for my USB audio class 2.0 device "Native Instruments Komplete Audio 6"
>  i
>  can't report such good news.
>  There is constant irregular crackling, not only with Pd but also with
>  aplay etc. It seems related to USB bandwidth, since turning on and off
>  the
>  inputs in Pd changes crackling frequency. The dwc_otg.speed setting is
>  not
>  usable for me, since the device is dependent on USB 2.0 operation.
>  Any experiences with USB 2.0 audio devices under ALSA/rpi?
>  thanks,
>  gr~~~
> 
> 
>  2013/1/26 Cyrille Henry 
> >
> >
> > hello,
> >
> > I just install raspbian release and update it. then install pd 0.44.1
> > (without any specific optimisation flag)
> >
> > I made the standard optimisation :
> > * - rtprio 99
> > * - memlock 10
> > in /etc/security/limits.conf
> >
> > and
> > dwc_otg.speed=1
> > in /boot/cmdline.txt
> > as suggested by miller
> >
> > I use a uca222 beringher (that cost about 20 or 25€) sound card.
> > trying the test audio and midi, there is no click with 10ms audio
> > buffer
> > (with adc~ enable).
> >
> > this is with usb keyboard / mouse combo plugged and graphical interface
> > (for the system and for pd).
> >
> > without X, audiobuf can be as low as 5ms
> >
> > having a usb keyboard did not change anything for me.
> >
> > i'm very happy
> >
> > cheers
> > c
> >
> > ___
> > Pd-list@iem.at mailing list
> > UNSUBSCRIBE and account-management ->
> > http://lists.puredata.info/listinfo/pd-list
> 
> 
> 
> 
> 
>  --
>  Thomas Grill
>  http://g.org
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> --
> >>> Thomas Grill
> >>> http://g.org
> >>>
> >>> ___
> >>> Pd-list@iem.at mailing list
> >>> UNSUBSCRIBE and account-management ->
> >>> http://lists.puredata.info/listinfo/pd-list
> >>>
> >>
> >> ___
> >> Pd-list@iem.at mailing list
> >> UNSUBSCRIBE and account-management ->
> >> http://lists.puredata.info/listinfo/pd-list
> >>
> >
> 
> ___
> Pd-list@iem.at mailing list
> UNSUBSCRIBE and account-management -> 
> http://lists.puredata.info/listinfo/pd-list

___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management -> 
http:

Re: [PD] raspberry pi user experience

2013-01-27 Thread katja 
Thanks Pierre and Cyrille.

It turned out that various keyboards and mouse just kill USB (when at
1.1) on the Pi. 'Keysonic Wireless Trackball Keyboard' happens to work
well. The lower USB speed brings substantial improvement of the audio
indeed. Now a real realtime kernel, that would probably improve things
further.

Katja



On Sun, Jan 27, 2013 at 2:33 PM, Cyrille Henry  wrote:
> i put it in front of everything :
>
> dwc_otg.speed=1 dwc_otg.lpm_enable=0 console=ttyAMA0,115200
> kgdboc=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4
> elevator=deadline rootwait
>
> cheers
> c
>
> Le 27/01/2013 11:42, katja a écrit :
>
>> Hello,
>>
>> Some people seem to have result with setting lower USB speed on the
>> Pi, but when I try this, the Pi doesn't even respond to keyboard
>> anymore. Checking /boot/cmdline.txt with another computer, I'm sure it
>> is not due to a typo. But the order of settings may be important?
>> Could anyone copy the full text of /boot/cmdline.txt for me, if you
>> have keyboard working with lowered USB speed? (I'm not talking about
>> good audio yet).
>>
>> Thanks,
>> Katja
>>
>>
>> On Sat, Jan 26, 2013 at 8:54 PM, Thomas Grill  wrote:
>>>
>>> Message to self: it seems that one has to wait for updated RPi USB
>>> firmware/drivers to get USB 2.0 audio going.
>>> Obviously the "isochronous transfer mode" as used by audio interfaces is
>>> currently broken.
>>> gr~~~
>>>
>>>
>>> 2013/1/26 Thomas Grill 


 Hi all,
 for my USB audio class 2.0 device "Native Instruments Komplete Audio 6"
 i
 can't report such good news.
 There is constant irregular crackling, not only with Pd but also with
 aplay etc. It seems related to USB bandwidth, since turning on and off
 the
 inputs in Pd changes crackling frequency. The dwc_otg.speed setting is
 not
 usable for me, since the device is dependent on USB 2.0 operation.
 Any experiences with USB 2.0 audio devices under ALSA/rpi?
 thanks,
 gr~~~


 2013/1/26 Cyrille Henry 
>
>
> hello,
>
> I just install raspbian release and update it. then install pd 0.44.1
> (without any specific optimisation flag)
>
> I made the standard optimisation :
> * - rtprio 99
> * - memlock 10
> in /etc/security/limits.conf
>
> and
> dwc_otg.speed=1
> in /boot/cmdline.txt
> as suggested by miller
>
> I use a uca222 beringher (that cost about 20 or 25€) sound card.
> trying the test audio and midi, there is no click with 10ms audio
> buffer
> (with adc~ enable).
>
> this is with usb keyboard / mouse combo plugged and graphical interface
> (for the system and for pd).
>
> without X, audiobuf can be as low as 5ms
>
> having a usb keyboard did not change anything for me.
>
> i'm very happy
>
> cheers
> c
>
> ___
> Pd-list@iem.at mailing list
> UNSUBSCRIBE and account-management ->
> http://lists.puredata.info/listinfo/pd-list





 --
 Thomas Grill
 http://g.org
>>>
>>>
>>>
>>>
>>>
>>> --
>>> Thomas Grill
>>> http://g.org
>>>
>>> ___
>>> Pd-list@iem.at mailing list
>>> UNSUBSCRIBE and account-management ->
>>> http://lists.puredata.info/listinfo/pd-list
>>>
>>
>> ___
>> Pd-list@iem.at mailing list
>> UNSUBSCRIBE and account-management ->
>> http://lists.puredata.info/listinfo/pd-list
>>
>

___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management -> 
http://lists.puredata.info/listinfo/pd-list

Re: [PD] raspberry pi user experience

2013-01-27 Thread me.grimm 
i basically just ordered ever cheapo (<30$) usb stereo soundcard there
is on amazon. ill get the uni to pay.

i was having the same issue as katja. no keyboard, wifi, etc with usb speed 1

ill let the group know if any of the usb soundcards i ordered work
with speed 2 (hopefully) or speed 1 if i can find a usb 1.0
keyboard...

cheers
m


On Sun, Jan 27, 2013 at 8:33 AM, Cyrille Henry  wrote:
> i put it in front of everything :
>
> dwc_otg.speed=1 dwc_otg.lpm_enable=0 console=ttyAMA0,115200
> kgdboc=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4
> elevator=deadline rootwait
>
> cheers
> c
>
> Le 27/01/2013 11:42, katja a écrit :
>
>> Hello,
>>
>> Some people seem to have result with setting lower USB speed on the
>> Pi, but when I try this, the Pi doesn't even respond to keyboard
>> anymore. Checking /boot/cmdline.txt with another computer, I'm sure it
>> is not due to a typo. But the order of settings may be important?
>> Could anyone copy the full text of /boot/cmdline.txt for me, if you
>> have keyboard working with lowered USB speed? (I'm not talking about
>> good audio yet).
>>
>> Thanks,
>> Katja
>>
>>
>> On Sat, Jan 26, 2013 at 8:54 PM, Thomas Grill  wrote:
>>>
>>> Message to self: it seems that one has to wait for updated RPi USB
>>> firmware/drivers to get USB 2.0 audio going.
>>> Obviously the "isochronous transfer mode" as used by audio interfaces is
>>> currently broken.
>>> gr~~~
>>>
>>>
>>> 2013/1/26 Thomas Grill 


 Hi all,
 for my USB audio class 2.0 device "Native Instruments Komplete Audio 6"
 i
 can't report such good news.
 There is constant irregular crackling, not only with Pd but also with
 aplay etc. It seems related to USB bandwidth, since turning on and off
 the
 inputs in Pd changes crackling frequency. The dwc_otg.speed setting is
 not
 usable for me, since the device is dependent on USB 2.0 operation.
 Any experiences with USB 2.0 audio devices under ALSA/rpi?
 thanks,
 gr~~~


 2013/1/26 Cyrille Henry 
>
>
> hello,
>
> I just install raspbian release and update it. then install pd 0.44.1
> (without any specific optimisation flag)
>
> I made the standard optimisation :
> * - rtprio 99
> * - memlock 10
> in /etc/security/limits.conf
>
> and
> dwc_otg.speed=1
> in /boot/cmdline.txt
> as suggested by miller
>
> I use a uca222 beringher (that cost about 20 or 25€) sound card.
> trying the test audio and midi, there is no click with 10ms audio
> buffer
> (with adc~ enable).
>
> this is with usb keyboard / mouse combo plugged and graphical interface
> (for the system and for pd).
>
> without X, audiobuf can be as low as 5ms
>
> having a usb keyboard did not change anything for me.
>
> i'm very happy
>
> cheers
> c
>
> ___
> Pd-list@iem.at mailing list
> UNSUBSCRIBE and account-management ->
> http://lists.puredata.info/listinfo/pd-list





 --
 Thomas Grill
 http://g.org
>>>
>>>
>>>
>>>
>>>
>>> --
>>> Thomas Grill
>>> http://g.org
>>>
>>> ___
>>> Pd-list@iem.at mailing list
>>> UNSUBSCRIBE and account-management ->
>>> http://lists.puredata.info/listinfo/pd-list
>>>
>>
>> ___
>> Pd-list@iem.at mailing list
>> UNSUBSCRIBE and account-management ->
>> http://lists.puredata.info/listinfo/pd-list
>>
>
> ___
> Pd-list@iem.at mailing list
> UNSUBSCRIBE and account-management ->
> http://lists.puredata.info/listinfo/pd-list



-- 

m.e.grimm | m.f.a | ed.m.
megr...@gmail.com
_

___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management -> 
http://lists.puredata.info/listinfo/pd-list

Re: [PD] raspberry pi user experience

2013-01-27 Thread Cyrille Henry 

i put it in front of everything :

dwc_otg.speed=1 dwc_otg.lpm_enable=0 console=ttyAMA0,115200 
kgdboc=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 
elevator=deadline rootwait

cheers
c

Le 27/01/2013 11:42, katja a écrit :

Hello,

Some people seem to have result with setting lower USB speed on the
Pi, but when I try this, the Pi doesn't even respond to keyboard
anymore. Checking /boot/cmdline.txt with another computer, I'm sure it
is not due to a typo. But the order of settings may be important?
Could anyone copy the full text of /boot/cmdline.txt for me, if you
have keyboard working with lowered USB speed? (I'm not talking about
good audio yet).

Thanks,
Katja


On Sat, Jan 26, 2013 at 8:54 PM, Thomas Grill  wrote:

Message to self: it seems that one has to wait for updated RPi USB
firmware/drivers to get USB 2.0 audio going.
Obviously the "isochronous transfer mode" as used by audio interfaces is
currently broken.
gr~~~


2013/1/26 Thomas Grill 


Hi all,
for my USB audio class 2.0 device "Native Instruments Komplete Audio 6" i
can't report such good news.
There is constant irregular crackling, not only with Pd but also with
aplay etc. It seems related to USB bandwidth, since turning on and off the
inputs in Pd changes crackling frequency. The dwc_otg.speed setting is not
usable for me, since the device is dependent on USB 2.0 operation.
Any experiences with USB 2.0 audio devices under ALSA/rpi?
thanks,
gr~~~


2013/1/26 Cyrille Henry 


hello,

I just install raspbian release and update it. then install pd 0.44.1
(without any specific optimisation flag)

I made the standard optimisation :
* - rtprio 99
* - memlock 10
in /etc/security/limits.conf

and
dwc_otg.speed=1
in /boot/cmdline.txt
as suggested by miller

I use a uca222 beringher (that cost about 20 or 25€) sound card.
trying the test audio and midi, there is no click with 10ms audio buffer
(with adc~ enable).

this is with usb keyboard / mouse combo plugged and graphical interface
(for the system and for pd).

without X, audiobuf can be as low as 5ms

having a usb keyboard did not change anything for me.

i'm very happy

cheers
c

___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management ->
http://lists.puredata.info/listinfo/pd-list





--
Thomas Grill
http://g.org





--
Thomas Grill
http://g.org

___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management ->
http://lists.puredata.info/listinfo/pd-list



___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management -> 
http://lists.puredata.info/listinfo/pd-list



___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management -> 
http://lists.puredata.info/listinfo/pd-list

Re: [PD] raspberry pi user experience

2013-01-27 Thread Pierre Massat 
My USB 2.0 soundcard (E-MU 040) works fine in the lastest Raspbian without
any tweaks.
I'm thus not sure it has to be with USB itself.

Cheers,

Pierre.

2013/1/27 katja 

> Hello,
>
> Some people seem to have result with setting lower USB speed on the
> Pi, but when I try this, the Pi doesn't even respond to keyboard
> anymore. Checking /boot/cmdline.txt with another computer, I'm sure it
> is not due to a typo. But the order of settings may be important?
> Could anyone copy the full text of /boot/cmdline.txt for me, if you
> have keyboard working with lowered USB speed? (I'm not talking about
> good audio yet).
>
> Thanks,
> Katja
>
>
> On Sat, Jan 26, 2013 at 8:54 PM, Thomas Grill  wrote:
> > Message to self: it seems that one has to wait for updated RPi USB
> > firmware/drivers to get USB 2.0 audio going.
> > Obviously the "isochronous transfer mode" as used by audio interfaces is
> > currently broken.
> > gr~~~
> >
> >
> > 2013/1/26 Thomas Grill 
> >>
> >> Hi all,
> >> for my USB audio class 2.0 device "Native Instruments Komplete Audio 6"
> i
> >> can't report such good news.
> >> There is constant irregular crackling, not only with Pd but also with
> >> aplay etc. It seems related to USB bandwidth, since turning on and off
> the
> >> inputs in Pd changes crackling frequency. The dwc_otg.speed setting is
> not
> >> usable for me, since the device is dependent on USB 2.0 operation.
> >> Any experiences with USB 2.0 audio devices under ALSA/rpi?
> >> thanks,
> >> gr~~~
> >>
> >>
> >> 2013/1/26 Cyrille Henry 
> >>>
> >>> hello,
> >>>
> >>> I just install raspbian release and update it. then install pd 0.44.1
> >>> (without any specific optimisation flag)
> >>>
> >>> I made the standard optimisation :
> >>> * - rtprio 99
> >>> * - memlock 10
> >>> in /etc/security/limits.conf
> >>>
> >>> and
> >>> dwc_otg.speed=1
> >>> in /boot/cmdline.txt
> >>> as suggested by miller
> >>>
> >>> I use a uca222 beringher (that cost about 20 or 25€) sound card.
> >>> trying the test audio and midi, there is no click with 10ms audio
> buffer
> >>> (with adc~ enable).
> >>>
> >>> this is with usb keyboard / mouse combo plugged and graphical interface
> >>> (for the system and for pd).
> >>>
> >>> without X, audiobuf can be as low as 5ms
> >>>
> >>> having a usb keyboard did not change anything for me.
> >>>
> >>> i'm very happy
> >>>
> >>> cheers
> >>> c
> >>>
> >>> ___
> >>> Pd-list@iem.at mailing list
> >>> UNSUBSCRIBE and account-management ->
> >>> http://lists.puredata.info/listinfo/pd-list
> >>
> >>
> >>
> >>
> >> --
> >> Thomas Grill
> >> http://g.org
> >
> >
> >
> >
> > --
> > Thomas Grill
> > http://g.org
> >
> > ___
> > Pd-list@iem.at mailing list
> > UNSUBSCRIBE and account-management ->
> > http://lists.puredata.info/listinfo/pd-list
> >
>
> ___
> Pd-list@iem.at mailing list
> UNSUBSCRIBE and account-management ->
> http://lists.puredata.info/listinfo/pd-list
>
___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management -> 
http://lists.puredata.info/listinfo/pd-list

Re: [PD] raspberry pi user experience

2013-01-27 Thread katja 
Hello,

Some people seem to have result with setting lower USB speed on the
Pi, but when I try this, the Pi doesn't even respond to keyboard
anymore. Checking /boot/cmdline.txt with another computer, I'm sure it
is not due to a typo. But the order of settings may be important?
Could anyone copy the full text of /boot/cmdline.txt for me, if you
have keyboard working with lowered USB speed? (I'm not talking about
good audio yet).

Thanks,
Katja


On Sat, Jan 26, 2013 at 8:54 PM, Thomas Grill  wrote:
> Message to self: it seems that one has to wait for updated RPi USB
> firmware/drivers to get USB 2.0 audio going.
> Obviously the "isochronous transfer mode" as used by audio interfaces is
> currently broken.
> gr~~~
>
>
> 2013/1/26 Thomas Grill 
>>
>> Hi all,
>> for my USB audio class 2.0 device "Native Instruments Komplete Audio 6" i
>> can't report such good news.
>> There is constant irregular crackling, not only with Pd but also with
>> aplay etc. It seems related to USB bandwidth, since turning on and off the
>> inputs in Pd changes crackling frequency. The dwc_otg.speed setting is not
>> usable for me, since the device is dependent on USB 2.0 operation.
>> Any experiences with USB 2.0 audio devices under ALSA/rpi?
>> thanks,
>> gr~~~
>>
>>
>> 2013/1/26 Cyrille Henry 
>>>
>>> hello,
>>>
>>> I just install raspbian release and update it. then install pd 0.44.1
>>> (without any specific optimisation flag)
>>>
>>> I made the standard optimisation :
>>> * - rtprio 99
>>> * - memlock 10
>>> in /etc/security/limits.conf
>>>
>>> and
>>> dwc_otg.speed=1
>>> in /boot/cmdline.txt
>>> as suggested by miller
>>>
>>> I use a uca222 beringher (that cost about 20 or 25€) sound card.
>>> trying the test audio and midi, there is no click with 10ms audio buffer
>>> (with adc~ enable).
>>>
>>> this is with usb keyboard / mouse combo plugged and graphical interface
>>> (for the system and for pd).
>>>
>>> without X, audiobuf can be as low as 5ms
>>>
>>> having a usb keyboard did not change anything for me.
>>>
>>> i'm very happy
>>>
>>> cheers
>>> c
>>>
>>> ___
>>> Pd-list@iem.at mailing list
>>> UNSUBSCRIBE and account-management ->
>>> http://lists.puredata.info/listinfo/pd-list
>>
>>
>>
>>
>> --
>> Thomas Grill
>> http://g.org
>
>
>
>
> --
> Thomas Grill
> http://g.org
>
> ___
> Pd-list@iem.at mailing list
> UNSUBSCRIBE and account-management ->
> http://lists.puredata.info/listinfo/pd-list
>

___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management -> 
http://lists.puredata.info/listinfo/pd-list

Re: [PD] raspberry pi user experience

2013-01-26 Thread Thomas Grill 
Message to self: it seems that one has to wait for updated RPi USB
firmware/drivers to get USB 2.0 audio going.
Obviously the "isochronous transfer mode" as used by audio interfaces is
currently broken.
gr~~~


2013/1/26 Thomas Grill 

> Hi all,
> for my USB audio class 2.0 device "Native Instruments Komplete Audio 6" i
> can't report such good news.
> There is constant irregular crackling, not only with Pd but also with
> aplay etc. It seems related to USB bandwidth, since turning on and off the
> inputs in Pd changes crackling frequency. The dwc_otg.speed setting is not
> usable for me, since the device is dependent on USB 2.0 operation.
> Any experiences with USB 2.0 audio devices under ALSA/rpi?
> thanks,
> gr~~~
>
>
> 2013/1/26 Cyrille Henry 
>
>> hello,
>>
>> I just install raspbian release and update it. then install pd 0.44.1
>> (without any specific optimisation flag)
>>
>> I made the standard optimisation :
>> * - rtprio 99
>> * - memlock 10
>> in /etc/security/limits.conf
>>
>> and
>> dwc_otg.speed=1
>> in /boot/cmdline.txt
>> as suggested by miller
>>
>> I use a uca222 beringher (that cost about 20 or 25€) sound card.
>> trying the test audio and midi, there is no click with 10ms audio buffer
>> (with adc~ enable).
>>
>> this is with usb keyboard / mouse combo plugged and graphical interface
>> (for the system and for pd).
>>
>> without X, audiobuf can be as low as 5ms
>>
>> having a usb keyboard did not change anything for me.
>>
>> i'm very happy
>>
>> cheers
>> c
>>
>> __**_
>> Pd-list@iem.at mailing list
>> UNSUBSCRIBE and account-management -> http://lists.puredata.info/**
>> listinfo/pd-list 
>>
>
>
>
> --
> Thomas Grill
> http://g.org
>



-- 
Thomas Grill
http://g.org
___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management -> 
http://lists.puredata.info/listinfo/pd-list

Re: [PD] raspberry pi user experience

2013-01-26 Thread Thomas Grill 
Hi all,
for my USB audio class 2.0 device "Native Instruments Komplete Audio 6" i
can't report such good news.
There is constant irregular crackling, not only with Pd but also with aplay
etc. It seems related to USB bandwidth, since turning on and off the inputs
in Pd changes crackling frequency. The dwc_otg.speed setting is not usable
for me, since the device is dependent on USB 2.0 operation.
Any experiences with USB 2.0 audio devices under ALSA/rpi?
thanks,
gr~~~


2013/1/26 Cyrille Henry 

> hello,
>
> I just install raspbian release and update it. then install pd 0.44.1
> (without any specific optimisation flag)
>
> I made the standard optimisation :
> * - rtprio 99
> * - memlock 10
> in /etc/security/limits.conf
>
> and
> dwc_otg.speed=1
> in /boot/cmdline.txt
> as suggested by miller
>
> I use a uca222 beringher (that cost about 20 or 25€) sound card.
> trying the test audio and midi, there is no click with 10ms audio buffer
> (with adc~ enable).
>
> this is with usb keyboard / mouse combo plugged and graphical interface
> (for the system and for pd).
>
> without X, audiobuf can be as low as 5ms
>
> having a usb keyboard did not change anything for me.
>
> i'm very happy
>
> cheers
> c
>
> __**_
> Pd-list@iem.at mailing list
> UNSUBSCRIBE and account-management -> http://lists.puredata.info/**
> listinfo/pd-list 
>



-- 
Thomas Grill
http://g.org
___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management -> 
http://lists.puredata.info/listinfo/pd-list

[PD] raspberry pi user experience

2013-01-25 Thread Cyrille Henry 

hello,

I just install raspbian release and update it. then install pd 0.44.1 (without 
any specific optimisation flag)

I made the standard optimisation :
* - rtprio 99
* - memlock 10
in /etc/security/limits.conf

and
dwc_otg.speed=1
in /boot/cmdline.txt
as suggested by miller

I use a uca222 beringher (that cost about 20 or 25€) sound card.
trying the test audio and midi, there is no click with 10ms audio buffer (with 
adc~ enable).

this is with usb keyboard / mouse combo plugged and graphical interface (for 
the system and for pd).

without X, audiobuf can be as low as 5ms

having a usb keyboard did not change anything for me.

i'm very happy

cheers
c

___
Pd-list@iem.at mailing list
UNSUBSCRIBE and account-management -> 
http://lists.puredata.info/listinfo/pd-list