Public bug reported:

When using the system testing tool I cannot hear anything recorded
through the built-in microphone.

When I turn up the sensitivity in the sound preferences to the max it
does seem to pick up sound, albeit with a lot of amplified static.

The speakers are turned up and other sounds play normally (e.g. the
logon sound). The microphone works OK in windows.

Same thing applies to external microphone when connecting a headset. On
top of this, the sound goes to headphones only when speakers (analog
output) is selected in sound preferences. When I select analog
headphones there is no sound. And I do use analog headset with normal
microphone and headphone jacks.

AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: NVidia [HDA NVidia], device 0: ALC660-VD Analog [ALC660-VD Analog]
   Subdevices: 1/1 

DistroRelease: Ubuntu 9.10
Package: alsa-base 1.0.20+dfsg-1ubuntu5
Uname: Linux 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:05:01 UTC 2009 
x86_64 GNU/Linux

ProblemType: Bug
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  onair24    2695 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'NVidia'/'HDA NVidia at 0xfd778000 irq 20'
   Mixer name   : 'Realtek ALC660-VD'
   Components   : 'HDA:10ec0660,10431339,00100001 
HDA:10573055,10431316,00100700'
   Controls      : 23
   Simple ctrls  : 15
CheckboxCommand: alsa_record_playback
CheckboxData: The sound is very low and can barely be heard against solid and 
loud noise.
CheckboxDescription:
 Open the volume control application by right-clicking on the speaker icon in 
the panel and selecting "Sound Preferences".  Select the "Input" tab and choose 
any alternate (non-default) device(s).  Select the "Output" tab and choose any 
alternate (non-default) device(s).  When you are done, click the Test button, 
then speak into the microphone. After a few seconds, your speech will be played 
back to you.
 
 Вы услышали вашу воспроизведенную речь?
CheckboxTest: alsa_record_playback_alternates
Date: Wed Nov  4 13:14:57 2009
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027.1)
NonfreeKernelModules: nvidia
Package: alsa-base 1.0.20+dfsg-1ubuntu5
PackageArchitecture: all
ProcEnviron:
 SHELL=/bin/bash
 LANG=ru_RU.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SourcePackage: alsa-driver
Tags: checkbox-bug
Uname: Linux 2.6.31-14-generic x86_64

** Affects: alsa-driver (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug checkbox-bug

-- 
Asus F5N built-in microphone too low to pick up any sound
https://bugs.launchpad.net/bugs/474016
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