imported>ThorstenStaerk |
imported>ThorstenStaerk |
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| | If you hear your voice, your microphone and drivers are okay. | | If you hear your voice, your microphone and drivers are okay. |
| | | | |
| − | See | + | = See also = |
| | * [[Sound troubleshooting]] | | * [[Sound troubleshooting]] |
| − | | + | * http://www.linuxjournal.com/article/6735 |
| − | http://www.linuxjournal.com/article/6735 | |
| − | | |
| − | Soundcard Intel 82801G on Ubuntu 8.10: recording problems
| |
| − | * recording via external microphone very quiet
| |
| − | * recording via internal microphone cannot be heard
| |
| − | | |
| − | alsamixer -c 0
| |
| − | | |
| − | tstaerk@dell-desktop:~/alsa$ modprobe -l | grep snd-hda
| |
| − | /lib/modules/2.6.27-14-generic/kernel/sound/pci/hda/snd-hda-intel.ko
| |
| − | tstaerk@dell-desktop:~/alsa$ md5sum /lib/modules/2.6.27-14-generic/kernel/sound/pci/hda/snd-hda-intel.ko
| |
| − | bec085930fe6b6e7c448c5ba7d3e50fa /lib/modules/2.6.27-14-generic/kernel/sound/pci/hda/snd-hda-intel.ko
| |
| − | tstaerk@dell-desktop:~/alsa$ ll /lib/modules/2.6.27-14-generic/kernel/sound/pci/hda/snd-hda-intel.ko
| |
| − | bash: ll: command not found
| |
| − | tstaerk@dell-desktop:~/alsa$ ls -l /lib/modules/2.6.27-14-generic/kernel/sound/pci/hda/snd-hda-intel.ko
| |
| − | -rw-r--r-- 1 root root 511592 2009-07-25 01:48 /lib/modules/2.6.27-14-generic/kernel/sound/pci/hda/snd-hda-intel.ko
| |
| − |
| |
| − | modinfo snd-hda-intel
| |
| − | filename: /lib/modules/2.6.27-14-generic/kernel/sound/pci/hda/snd-hda-intel.ko
| |
| − | description: Intel HDA driver
| |
| − | license: GPL
| |
| − | srcversion: C4633ED01D74A5D02607392
| |
| − | alias: pci:v00006549d00001200sv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd00000BD7sv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd00000BD6sv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd00000BD5sv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd00000BD4sv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd00000AC3sv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd00000AC2sv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd00000AC1sv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd00000AC0sv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd000007FDsv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd000007FCsv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd00000777sv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd00000776sv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd00000775sv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd00000774sv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd0000055Dsv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd0000055Csv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd0000044Bsv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd0000044Asv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd000003F0sv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd000003E4sv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd00000371sv*sd*bc*sc*i*
| |
| − | alias: pci:v000010DEd0000026Csv*sd*bc*sc*i*
| |
| − | alias: pci:v000010B9d00005461sv*sd*bc*sc*i*
| |
| − | alias: pci:v00001039d00007502sv*sd*bc*sc*i*
| |
| − | alias: pci:v00001106d00003288sv*sd*bc*sc*i*
| |
| − | alias: pci:v00001002d0000AA48sv*sd*bc*sc*i*
| |
| − | alias: pci:v00001002d0000AA40sv*sd*bc*sc*i*
| |
| − | alias: pci:v00001002d0000AA38sv*sd*bc*sc*i*
| |
| − | alias: pci:v00001002d0000AA30sv*sd*bc*sc*i*
| |
| − | alias: pci:v00001002d0000AA28sv*sd*bc*sc*i*
| |
| − | alias: pci:v00001002d0000AA20sv*sd*bc*sc*i*
| |
| − | alias: pci:v00001002d0000AA18sv*sd*bc*sc*i*
| |
| − | alias: pci:v00001002d0000AA10sv*sd*bc*sc*i*
| |
| − | alias: pci:v00001002d0000AA08sv*sd*bc*sc*i*
| |
| − | alias: pci:v00001002d0000AA00sv*sd*bc*sc*i*
| |
| − | alias: pci:v00001002d0000970Fsv*sd*bc*sc*i*
| |
| − | alias: pci:v00001002d0000960Fsv*sd*bc*sc*i*
| |
| − | alias: pci:v00001002d00007919sv*sd*bc*sc*i*
| |
| − | alias: pci:v00001002d0000793Bsv*sd*bc*sc*i*
| |
| − | alias: pci:v00001002d00004383sv*sd*bc*sc*i*
| |
| − | alias: pci:v00001002d0000437Bsv*sd*bc*sc*i*
| |
| − | alias: pci:v00008086d0000811Bsv*sd*bc*sc*i*
| |
| − | alias: pci:v00008086d00003B56sv*sd*bc*sc*i*
| |
| − | alias: pci:v00008086d00003A6Esv*sd*bc*sc*i*
| |
| − | alias: pci:v00008086d00003A3Esv*sd*bc*sc*i*
| |
| − | alias: pci:v00008086d0000293Fsv*sd*bc*sc*i*
| |
| − | alias: pci:v00008086d0000293Esv*sd*bc*sc*i*
| |
| − | alias: pci:v00008086d00002911sv*sd*bc*sc*i*
| |
| − | alias: pci:v00008086d0000284Bsv*sd*bc*sc*i*
| |
| − | alias: pci:v00008086d0000269Asv*sd*bc*sc*i*
| |
| − | alias: pci:v00008086d000027D8sv*sd*bc*sc*i*
| |
| − | alias: pci:v00008086d00002668sv*sd*bc*sc*i*
| |
| − | depends: snd-pcm,snd-page-alloc,snd
| |
| − | vermagic: 2.6.27-14-generic SMP mod_unload modversions 586
| |
| − | parm: power_save:Automatic power-saving timeout (in second, 0 = disable). (int)
| |
| − | parm: index:Index value for Intel HD audio interface. (array of int)
| |
| − | parm: id:ID string for Intel HD audio interface. (array of charp)
| |
| − | parm: enable:Enable Intel HD audio interface. (array of bool)
| |
| − | parm: model:Use the given board model. (array of charp)
| |
| − | parm: position_fix:Fix DMA pointer (0 = auto, 1 = none, 2 = POSBUF). (array of int)
| |
| − | parm: bdl_pos_adj:BDL position adjustment offset. (array of int)
| |
| − | parm: probe_mask:Bitmask to probe codecs (default = -1). (array of int)
| |
| − | parm: single_cmd:Use single command to communicate with codecs (for debugging only). (bool)
| |
| − | parm: enable_msi:Enable Message Signaled Interrupt (MSI) (int)
| |
| − | parm: power_save_controller:Reset controller in power save mode. (bool)
| |
Linux sound is one big mess. We have ALSA, OSS, PulseAudio, gstreamer, arts, phonon as subsystems. This article explains the concepts and helps people fixing their sound problems.
The "normal" Linux sound system is ALSA. It emulates the older OSS. ALSA allows several applications to play sound at the same time, OSS does not. This is because OSS provides a single sound device file, /dev/dsp that applications lock when outputting to it. To raise confusion, ALSA emulates OSS by also providing /dev/dsp.
The first step to find out if your sound is configured correctly is to output noise. Turn the volume low and try
dd if=/dev/urandom of=/dev/dsp
If you hear a sound, your drivers and the physical connections of your speakers are okay. To record sound, try this:
dd if=/dev/dsp of=audio.raw
Say something. Type CTRL_C to stop the recording. Playback by typing
dd if=audio.raw of=/dev/dsp
If you hear your voice, your microphone and drivers are okay.
See also
