Paul, "arecord" will stop if there is not any audio level on the
corresponding input. Open "alsamixer" and set the level of the correct
input.
After that level is correct, run "alsactl store 0" to fix.
José Luis
El dom, 11-11-2012 a las 12:30 +0000,
[email protected] escribió:
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> Today's Topics:
>
> 1. alsa arecord works then stops working (Paul Homlish)
> 2. alsa capture works then stops working (Paul Homlish)
> 3. Re: No audio with mencoder, usual alsa setting (Miroslav Rovis)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 10 Nov 2012 07:34:22 -0500
> From: Paul Homlish <[email protected]>
> Subject: [Alsa-user] alsa arecord works then stops working
> To: [email protected]
> Message-ID: <[email protected]>
> Content-Type: text/plain; charset="iso-8859-1"
>
> this works over and over and over perfectly:
> arecord -D plughw:1,0 -c 2 -r 48000 | aplay
>
> however, when I do either of:
>
> mplayer device=/dev/video0 ALSA_CARD=1 ALSA_PCM_CARD=0 tv://
> or
> vlc v4l2:// --v4l2-standard=NTSC --input-slave=alsa://hw:1,0
> --v4l2-width=640 --v4l2-height=480 --aspect-ratio=4:3
>
> then
> arecord -D plughw:1,0 -c 2 -r 48000 | aplay
> stops working.
> Additionally, I never heard any sound from the capture device.
> details can be seen here:
> https://docs.google.com/document/d/1X9pOl5-Yh9nCkPQdmhCOpyaoCBEvvdND5SDn3lFxMrQ/edit
> -------------- next part --------------
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> ------------------------------
>
> Message: 2
> Date: Sat, 10 Nov 2012 07:30:48 -0500
> From: Paul Homlish <[email protected]>
> Subject: [Alsa-user] alsa capture works then stops working
> To: [email protected]
> Message-ID: <[email protected]>
> Content-Type: text/plain; charset="iso-8859-1"
>
> this works over and over and over perfectly:
> arecord -D plughw:1,0 -c 2 -r 48000 | aplay
>
> however, when I do either of:
>
> mplayer device=/dev/video0 ALSA_CARD=1 ALSA_PCM_CARD=0 tv://
> or
> vlc v4l2:// --v4l2-standard=NTSC --input-slave=alsa://hw:1,0
> --v4l2-width=640 --v4l2-height=480 --aspect-ratio=4:3
>
> then
> arecord -D plughw:1,0 -c 2 -r 48000 | aplay
> stops working.
> Additionally, I never heard any sound from the capture device.
>
> here are details for the experience and my system.
>
> https://docs.google.com/document/d/1X9pOl5-Yh9nCkPQdmhCOpyaoCBEvvdND5SDn3lFxMrQ/edit
>
> -------------- next part --------------
> An HTML attachment was scrubbed...
>
> ------------------------------
>
> Message: 3
> Date: Sat, 10 Nov 2012 23:48:27 +0100
> From: Miroslav Rovis <[email protected]>
> Subject: Re: [Alsa-user] No audio with mencoder, usual alsa setting
> To: [email protected]
> Message-ID: <[email protected]>
> Content-Type: text/plain; charset=UTF-8
>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> The issue has been solved:
>
> http://lists.freedesktop.org/archives/pulseaudio-discuss/2012-November/015243.html
>
> Hope this helps other users!
>
> Miroslav Rovis
>
> > Date: Fri, 02 Nov 2012 03:49:47 +0100 From: Miroslav Rovis
> > <[email protected]> Subject: [Alsa-user] No audio with mencoder,
> > usual alsa setting To: [email protected] Message-ID:
> > <[email protected]> Content-Type: text/plain; charset=UTF-8
> >
> > Hi!
> >
> > I searched the list, but didn't find closely relevant topic. It
> > could be udev related, since my errors are similar to these:
> >
> > http://linuxtv.org/pipermail/linux-dvb/2009-January/031362.html
> >
> > OTOH, I get audio with ffmpeg, a path that I also follow:
> >
> > http://ffmpeg.org/pipermail/ffmpeg-user/2012-November/010896.html
> >
> > (pls. find in the latter link my mencoder lines and profile
> > entries that don't get the sound right, so I don't cross post!)
> >
> > It is obviously alsa issue, with mencoder. I could post the
> > console output here. But it doesn't show errors.
> >
> > It just doesn't capture the sound. So, I'll try and post the
> > relevant output of diverse command, to be able to pinpoint the
> > problem.
> >
> > Also, I made a screencast of my alsa problem. Here:
> >
> > "Screen 2012-11-02 23h, Alsa problem"
> >
> > http://www.youtube.com/watch?v=efvKex6LTMI
> >
> >
> > $ arecord -l **** List of CAPTURE Hardware Devices ****
> >
> > shm_open() failed: Permission denied
> >
> > card 0: SB [HDA ATI SB], device 0: ALC892 Analog [ALC892 Analog]
> > Subdevices: 0/1 Subdevice #0: subdevice #0 card 0: SB [HDA ATI SB],
> > device 2: ALC892 Analog [ALC892 Analog] Subdevices: 1/1 Subdevice
> > #0: subdevice #0 card 2: CX8811 [Conexant CX8811], device 0: CX88
> > Digital [CX88 Digital] Subdevices: 0/1 Subdevice #0: subdevice #0
> > $
> >
> > $ aplay -l **** List of PLAYBACK Hardware Devices **** shm_open()
> > failed: Permission denied card 0: SB [HDA ATI SB], device 0: ALC892
> > Analog [ALC892 Analog] Subdevices: 0/1 Subdevice #0: subdevice #0
> > card 0: SB [HDA ATI SB], device 1: ALC892 Digital [ALC892 Digital]
> > Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: Generic
> > [HD-Audio Generic], device 3: HDMI 0 [HDMI 0] Subdevices: 0/1
> > Subdevice #0: subdevice #0 $
> >
> > # excerpt from /var/log/dmesg start [ 8.839284] cx88/2: cx2388x
> > MPEG-TS Driver Manager version 0.0.9
> loaded
> > [ 8.840878] cx88[0]: subsystem: 0070:1402, board: Hauppauge
> > WinTV-HVR3000 TriMode Analog/DVB-S/DVB-T [card=53,autodetected],
> > frontend(s): 2 [ 8.840880] cx88[0]: TV tuner type 63, Radio
> > tuner type -1 [ 8.841420] snd_hda_intel 0000:01:00.1: irq 74 for
> > MSI/MSI-X [ 8.854439] cx88/0: cx2388x v4l2 driver version 0.0.9
> > loaded [ 8.878594] cx2388x alsa driver version 0.0.9 loaded [
> > 8.953843] cx88[0]: i2c init: enabling analog demod on
> > HVR1300/3000/4000 tuner # excerpt from /var/log/dmesg end
> >
> > # excerpt from /var/log/dmesg start [ 9.074506] cx88[0]:
> > hauppauge eeprom: model=14109 [ 9.093514] tuner-simple 0-0061:
> > creating new instance [ 9.093523] tuner-simple 0-0061: type set
> > to 78 (Philips FMD1216MEX MK3 Hybrid Tuner) [ 9.149392]
> > Registered IR keymap rc-hauppauge [ 9.149856] input: cx88 IR
> > (Hauppauge WinTV-HVR300 as
> > /devices/pci0000:00/0000:00:14.4/0000:04:05.2/rc/rc0/input4 [
> > 9.153553] [drm] PCIE GART of 512M enabled (table at
> > 0x0000000000040000). [ 9.153727] radeon 0000:01:00.0: WB
> > enabled [ 9.153738] radeon 0000:01:00.0: fence driver on ring 0
> > use gpu addr 0x0000000040000c00 and cpu addr 0xffff8802335c0c00 [
> > 9.170403] rc0: cx88 IR (Hauppauge WinTV-HVR300 as
> > /devices/pci0000:00/0000:00:14.4/0000:04:05.2/rc/rc0 [ 9.170438]
> > [drm] ring test on 0 succeeded in 2 usecs [ 9.170485] cx88[0]/2:
> > cx2388x 8802 Driver Manager [ 9.170531] cx88[0]/2: found at
> > 0000:04:05.2, rev: 5, irq: 20, latency: 32, mmio: 0xfb000000 #
> > excerpt from /var/log/dmesg end
> >
> > If I posted the output of ls -lR /proc/asound/ here, which is too
> > bulky and obtrusive for posting, there would be as many lines as
> > there are files of
> >
> > -r--r--r-- 1 root wheel 0 2012-11-02 03:33 clients
> >
> > "root wheel" owned files... Does that tell something? I don't see
> > myself as plain user in wheel...
> >
> > $ cat /etc/group | grep wheel wheel:x:10:root $
> >
> > What else do I need to post? I searched and read a lot, and I'm a
> > little lost right now.
> >
> > I'll try and ask for help on Gentoo forums, since Gentoo has had
> > issues with udev recently...
> >
> > Also maybe on pulse audio mailing list, because the fiddling with
> > pavucontrol window (line in, or setting cx88 as default or what
> > not) doesn't help mencoder in the least...
> >
> > And also on mencoder list.
> >
> > I'll try and remember to post the solution here once I reach it,
> > just as I will try and point to here from the other places, for
> > people to find the solution if they have issue like mine!
> >
> > Thanx!
> >
> > Miroslav Rovis
>
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>
>
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