[SOLVED+PATCH] Beagleboard running Jack Audio Connection Kit

[Richard Andrews]

Normally jackd fails to run on the Beagleboard Angstrom distro when
audio capture is enabled. Jackd can be made to run if given the right
arguments.

# jackd -d alsa -p 256 -n 4 -P hw:0 -C hw:0 -S -r 48000

Important settings seem to be -p 256 -n 4.

Tested on Rev C4 with jack-server_0.118.0-r0.5_armv7a.ipk .

I have a patch which makes these working values the default for jackd
in angstrom. Who can review and commit it?

[Paul Menzel]

Am Mittwoch, den 28.07.2010, 22:22 +1000 schrieb Richard Andrews:
> Normally jackd fails to run on the Beagleboard Angstrom distro when
> audio capture is enabled. Jackd can be made to run if given the right
> arguments.
>
> # jackd -d alsa -p 256 -n 4 -P hw:0 -C hw:0 -S -r 48000
>
> Important settings seem to be -p 256 -n 4.
>
> Tested on Rev C4 with jack-server_0.118.0-r0.5_armv7a.ipk .

Great work.

> I have a patch which makes these working values the default for jackd
> in angstrom. Who can review and commit it?

I guess Koen is reading your message anyway. But normally you should
send patches for Ȧngström to developer list [1].

Thanks,

Paul

[1] http://www.angstrom-distribution.org/contact

[Richard Andrews]

On Wed, Jul 28, 2010 at 10:34 PM, Paul Menzel <pm.d...@googlemail.com> wrote:
> I guess Koen is reading your message anyway. But normally you should
> send patches for Ȧngström to developer list [1].

Thanks for the pointer.

[Ed]

BTW I was also able to get Jack started under Ubuntu 10.04 lucid using
these parameters.

Thanks!

Best,
Ed

On Jul 28, 5:22 am, Richard Andrews <bflatmaj...@gmail.com> wrote:
> Normally jackd fails to run on the Beagleboard Angstrom distro whenaudiocapture is enabled. Jackd can be made to run if given the right

> arguments.
>
> # jackd -d alsa -p 256 -n 4 -P hw:0 -C hw:0 -S -r 48000
>
> Important settings seem to be -p 256 -n 4.
>

> Tested on Rev C4 withjack-server_0.118.0-r0.5_armv7a.ipk .

[Sid Boyce]

I'm running jackmp, jack_lsp just hangs there - Ubuntu on a C3.
Slightly off-topic I can't get anything recorded from the Mic, neither
on Ubuntu nor on Angstrom narcissus. It seems to record a wav file OK,
but on playback I just get white noise.
root@beagleboard:~# jackd -d alsa -p 256 -n 4 -P hw:0 -C hw:1 -S -r 48000 &
[1] 1792
root@beagleboard:~# jackdmp 1.9.7
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2010 Grame.
jackdmp comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
JACK server starting in realtime mode with priority 10

root@beagleboard:~# jack_lsp

I am using jackmp as I especially need jack_connect, no problems on
openSUSE 11.3 or Kubuntu 10.04 LTS x86_64 boxes.
Regards
Sid.
--
Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot
Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support
Senior Staff Specialist, Cricket Coach
Microsoft Windows Free Zone - Linux used for all Computing Tasks