Problem with jack

Hi,
I'm trying to run my simple python script with using SpeechRecognition library, but i get a error when i try to listen on microphone:
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2239:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib pcm_route.c:947:(find_matching_chmap) Found no matching channel map
ALSA lib pulse.c:243:(pulse_connect) PulseAudio: Unable to connect: Connection refused
connect(2) call to /dev/shm/jack-0/default/jack_0 failed (err=No such file or directory)
ls /dev/shm/
pulse-shm-1786803448* pulse-shm-2918752564* pulse-shm-528682629*
pulse-shm-2134045932* pulse-shm-3577176364* pulse-shm-589288251*
pulse-shm-2735481799* pulse-shm-40907746* pulse-shm-899524684*
pulse-shm-2827064006* pulse-shm-4260734428* sem.lastpassffsemaphore*
arecord -L
null
Discard all samples (playback) or generate zero samples (capture)
pulse
PulseAudio Sound Server
default
Default ALSA Output (currently PulseAudio Sound Server)
sysdefault:CARD=PCH
HDA Intel PCH, ALC663 Analog
Default Audio Device
front:CARD=PCH,DEV=0
HDA Intel PCH, ALC663 Analog
Front speakers
surround21:CARD=PCH,DEV=0
HDA Intel PCH, ALC663 Analog
2.1 Surround output to Front and Subwoofer speakers
surround40:CARD=PCH,DEV=0
HDA Intel PCH, ALC663 Analog
4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
HDA Intel PCH, ALC663 Analog
4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
HDA Intel PCH, ALC663 Analog
5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
HDA Intel PCH, ALC663 Analog
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
HDA Intel PCH, ALC663 Analog
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
I read other threads about it, and that don't resolve my problems, maybe someone have the same problem...
I will be very gratefull for any help.
Last edited by neptyd (2014-09-11 09:56:00)

neptyd wrote:I read other threads about it, and that don't resolve my problems, maybe someone have the same problem...
I will be very gratefull for any help.
Which threads have you read? Link them here for reference. You apparently use pulseaudio, which you do not mention. What simple python script is that? Does is take any arguments? Do you have pulseaudio-alsa installed?
arecord -lL;
lspci -vvnn | grep -A1 '040[1-3]'; cat /proc/asound/modules; amixer;
lsusb #if there is a usb sound card;
# or use the alsa-info script

Similar Messages

Problems with Jack and my USB mic

My current settings on Jack are relatively standard, except for one thing - I have specified different input and output devices than default. Using such a setup stops Jack from starting up at all, and is very annoying - I would love to be able to use Jack for what it is supposed to be used for. Everything is the latest stable build out of the repositories via pacman, any help would be appreciated. Also, I have tried numerous different frames/periods, sample rates, and periods/buffers. I know this problem is common, but I cannot find a fix for it on google or 'round here. The microphone works fine when used without Jack (i.e. through Audacity or any other recording program). Any help is greatly appreciated.
Relevant Log file:
21:37:08.534 JACK is starting...
21:37:08.536 /usr/bin/jackd -v -r -dalsa -r48000 -p512 -n3 -s -D -Chw:0 -Phw:Microphone,0 -zs
jackd 0.120.1
Copyright 2001-2009 Paul Davis, Stephane Letz, Jack O'Quinn, Torben Hohn and others.
jackd 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
getting driver descriptor from /usr/lib/jack/jack_dummy.so
getting driver descriptor from /usr/lib/jack/jack_alsa.so
getting driver descriptor from /usr/lib/jack/jack_firewire.so
getting driver descriptor from /usr/lib/jack/jack_net.so
getting driver descriptor from /usr/lib/jack/jack_oss.so
JACK compiled with System V SHM support.
server `default' registered
loading driver ..
apparent rate = 48000
creating alsa driver ... hw:Microphone,0|hw:0|512|3|48000|0|0|nomon|swmeter|soft-mode|32bit
ALSA lib conf.c:4514:(parse_args) Unknown parameter 1
ALSA lib conf.c:4647:(snd_config_expand) Parse arguments error: No such file or directory
ALSA lib control.c:882:(snd_ctl_open_noupdate) Invalid CTL hw:Microphone,0
21:37:08.611 JACK was started with PID=13932.
control open "hw:Microphone,0" (No such file or directory)
ALSA: Cannot open PCM device alsa_pcm for playback. Falling back to capture-only mode
configuring for 48000Hz, period = 512 frames (10.7 ms), buffer = 3 periods
ALSA: final selected sample format for capture: 32bit integer little-endian
ALSA: use 3 periods for capture
impossible sample width (1) discovered!
no message buffer overruns
21:37:08.751 JACK was stopped with exit status=1.
21:37:10.631 Could not connect to JACK server as client. - Overall operation failed. - Unable to connect to server. Please check the messages window for more info.
Relevant aplay/arecord -l output:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: AD198x Digital [AD198x Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 1: Microphone [Logitech USB Microphone], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
Last edited by AVW (2011-04-24 01:55:29)

Ah, I forgot to mention I was using qjackctl. And I have tried that - with exact same result.
Last edited by AVW (2011-04-25 03:00:13)

Problems with Jack audio and realtime

Hi,
I'm trying to configure jack-audio-connection-kit to work in realtime as a normal user. I have followed the "Realtime for Users" entry in the wiki and edited /etc/security/limits.conf as:
@audio - rtprio 70
@audio - nice -10
@audio - memlock 250000
but the jack server doesn't work very well. I get a lot ot xruns (about 5 per minute) even when I'm not using any audio. This is the output of qjackctl:
02:13:25.922 Patchbay deactivated.
02:13:26.176 Statistics reset.
02:13:26.395 MIDI connection graph change.
02:13:29.184 Startup script...
02:13:29.184 artsshell -q terminate
can't create mcop directory
Creating link /home/johannes/.kde/socket-archer.
02:13:29.556 Startup script terminated with exit status=256.
02:13:29.556 JACK is starting...
02:13:29.557 /usr/bin/jackd -R -dalsa -dhw:0 -r48000 -p1024 -n2
02:13:29.562 JACK was started with PID=3886 (0xf2e).
jackd 0.100.7
Copyright 2001-2005 Paul Davis and others.
jackd 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 compiled with System V SHM support.
loading driver ..
apparent rate = 48000
creating alsa driver ... hw:0|hw:0|1024|2|48000|0|0|nomon|swmeter|-|32bit
control device hw:0
configuring for 48000Hz, period = 1024 frames, buffer = 2 periods
Note: audio device hw:0 doesn't support a 32bit sample format so JACK will try a 24bit format instead
Note: audio device hw:0 doesn't support a 24bit sample format so JACK will try a 16bit format instead
nperiods = 2 for capture
nperiods = 2 for playback
02:13:31.605 Server configuration saved to "/home/johannes/.jackdrc".
02:13:31.607 Statistics reset.
02:13:31.634 Client activated.
02:13:31.638 Audio connection change.
02:13:31.653 Audio connection graph change.
02:14:47.445 XRUN callback (1).
**** alsa_pcm: xrun of at least 395.915 msecs
02:14:58.447 XRUN callback (2).
**** alsa_pcm: xrun of at least 399.379 msecs
02:15:32.443 XRUN callback (3).
**** alsa_pcm: xrun of at least 395.860 msecs
Those things make the sound choppy.
I also have very bad latency, 42,7 msec...
I'm using the standard arch kernel:
Linux archer 2.6.15-ARCH #1 SMP PREEMPT Sun Feb 12 18:36:42 CET 2006 i686 Intel(R) Pentium(R) M processor 2.00GHz GenuineIntel GNU/Linux
I used Ubuntu before I switched to Arch, and there jack in realtime worked fine, so it's not because of the hardware. Back then I had to add a kernel module named "realtime-lsm", but according to the wiki that is not needed in Arch. Is there a solution for this problem?

lspci gives me:
00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)
I don't seem to have a "Surround Jack Mode" setting in alsamixer.
I have tried playing around with alsa, but I can't seem to get it right... And I have no idea if that is the problem. I will try using the alsactl from ubuntu.
It seems that if I change the Frames/Preiod and Sample Rate settings in qjackctl I can get more or less xruns, but they never go away fully. If I uncheck the realtime option in qjackctl I get lots of xruns.
I read somewhere that you need to have realtime-preemption in your kernel. The option name is CONFIG_PREEMPT_RT. I checked /boot/kconfig26 and it seems that option is not present in this kernel. Normal CONFIG_PREEMPT is set to "y" though. Might this be a problem?

There is a problem with the left headphone or stereo headphone jack connection in the ipod touch 2nd generation

I have had my ipod touch 2nd generation for 3 yrs. Now its been a year with this problem but i never seem to get it fixed because i lost my warranty and repair certificate a year ago. So the problem is whenever I put in a headphone jack for some reason only the right head phone or right speaker works not the left, but when i place the ipod on the docking port both speakers on my stereo work.
Now I have taken great care of this thing. Never lost it. I assume that a connection inside the jack port is pushed in from debrie (forgot how to spell that word) because, I always place my ipod into my pocket. The only way to get the left speaker or headphone to work is to push on the headphone jack so it tilts, then the left speaker works; but when i release it the left speaker or headphone turns off or stop making sound. So i know its not wiring problems its the connection for the headphone jack to the ipods jack's connection for the left speaker. Though microphones work.
My question is can this be a DIY or do i have to take it in to a local apple store. Problem i lost the warranty and protection repair form or license 2 years ago. I have had no problems with my ipod at all these years until this problem has consisted to happen since last year.
Anything?
Thanks,
Sigma119

- If you want to replace the headphone jack yourself see:
iPod Touch Repair - iFixit
- Apple will only exchange your iPod for a refurbished one for this price, You get a new battery. However, it may not be worth it for a 2G iPod.
Apple - Support - iPod - Repair pricing- A third-party place like this one is less expensive. Google from more places.
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I gathered that a lot of people have experienced headphone jack problems with their players, but I thought that was with the Micros only. I guess I'm glad I'm not the only one. Or maybe I'm not. I dunno.
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I got in touch with the place i brought it from and they said to go to Apple directly.
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My warranty expired a couple of months ago, so, naturally, all problems are showing up now.
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Any help out there?

I gathered that a lot of people have experienced headphone jack problems with their players, but I thought that was with the Micros only. I guess I'm glad I'm not the only one. Or maybe I'm not. I dunno.
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I just received my factory refurb Thinkstation C30. I'm having problems with the integrated audio. I'm using Windows 8.1 Pro, installed myself over the factory Windows 7. It seems to be detecting the headphones incorrectly. The internal speaker never does anything, in any case. When the headphones are plugged into the front headphone jack, the Realtek control panel thinks its the pink jack, and the microphone tab appears. Plugged into the microphone jack, it thinks its the green and pink jack, and flickers rapidly between plugged in and not plugged in on the pink jack, microphone tab appears on and off.
Now for the back jack:
Blue identifies as blue, line in tab appears.
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Silly question, but have you checked the orange connector that runs from the front panel to the motherboard to ensure it's plugged in correctly?
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Problem with my ipod touch jack

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The phono input is for a phonograph. The iPod does headphne output is not that same as a phongraph output. Does th stero have an AUX input? That should be compatible.

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I have a problem with my headphone jack and i just bought my macbook pro 10 days ago., I have a problem with my headphone jack and i just bought my macbook pro 10 days ago.

I am having a problem with the jack in for the headphones. I have bought it brand new from a local authorised apple store about 10 days ago. As soon as I plugged in my headphones and tried them, the sound was coming out of one side of the headphone and the plug inside my macbook pro was loose. When i tried moving it the sound was coming out of the device. What can I do?

Take it back to the store you bought it from. It will definitely be taken care of

Problems with headphone jack -- anyone else?

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I had the same problem with a 16Gig that I ordered the day they were announced: one channel very weak but if you pull the plug half way out it seemed to function. It didn't really function though. By pulling it out you hit a point where both earphones are playing off the same channel. I looked in the headphone jack with a microscope and could see either contamination or removed gold from the contact in the nano to the channel on the tip of the plug.
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http://m-audio.com/index.php?do=products.family&ID=FWinterfaces

Problem with hearphone jack

When il put the jack of headphone on the ipod, it doesn't stay at her place. It retreat of the hole. I have my iPod since one year and it's the first time I have this problem. Please help me I don't understand what is the problem.

- Have you troed another pair of earphones?
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Apple - Support - iPod - Repair pricing
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iPhone Repair, Service & Parts: iPod Touch, iPad, MacBook Pro Screens

Problem with jack

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