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AVW

Member

Registered: 2011-01-03

Posts: 15

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)

tacticalbread

Member

From: Bay Area, CA

Registered: 2011-04-09

Posts: 127

Website

Re: Problems with Jack and my USB mic

Why don't you leave input/output devices as default, and use qjackctl to setup your USB mic as an input?

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don't save us from the flames

AVW

Member

Registered: 2011-01-03

Posts: 15

Re: Problems with Jack and my USB mic

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)