Microphone does not work on Audigy 4

Please use "apport-collect -p alsa-base 482922"

Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: potworny 1966 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Audigy2'/'SB Audigy 4 [SB0610] (rev.0, serial:0x10211102) at 0x1000, irq 22'
   Mixer name : 'SigmaTel STAC9750,51'
   Components : 'AC97a:83847650'
   Controls : 202
   Simple ctrls : 37
CheckboxSubmission: cd2f25406392da1a8e2b14649fd32386
CheckboxSystem: daed2f3d6643b4a84b4520a2427f8c2b
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
NonfreeKernelModules: nvidia
Package: alsa-base 1.0.20+dfsg-1ubuntu5
PackageArchitecture: all
ProcEnviron:
 SHELL=/bin/bash
 LANG=pl_PL.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
Uname: Linux 2.6.31-14-generic x86_64
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

Check these mixer controls:

Simple mixer control 'Mic Select',0
  Capabilities: enum
  Items: 'Mic1' 'Mic2'
  Item0: 'Mic1'
^^^^^^^^^^^ Are you certain that you don't need to toggle this?

Simple mixer control 'AMic',0
  Capabilities: pvolume
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 100
  Mono:
  Front Left: Playback 0 [0%] [-99999.99dB]
  Front Right: Playback 0 [0%] [-99999.99dB]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ zeroed; raise

Simple mixer control 'Analog Capture Boost',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [off]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ muted; needs unmuting

Simple mixer control 'Analog Mix',0
  Capabilities: pvolume cvolume
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: Playback 0 - 100 Capture 0 - 100
  Front Left: Playback 0 [0%] [-99999.99dB] Capture 0 [0%] [-99999.99dB]
  Front Right: Playback 0 [0%] [-99999.99dB] Capture 0 [0%] [-99999.99dB]
^^^^^^^^^^^^^^^^^^^^^^^^^ raise both capture and playback levels

Simple mixer control 'Audigy Analog/Digital Output Jack',0
  Capabilities: pswitch pswitch-joined
  Playback channels: Mono
  Mono: Playback [on]
^^^^^^^^^^^ If playback is inaudible, too, then this needs to be muted

Sooo to help others... Run the following from the command line:

$ alsamixer

Change values according to Daniel's instructions. You can see the mic is working again (by looking at Sound Preferences).
Still I get a weird message from the Sound Recorded - that my settings are incorrect and I have to change them in System->Preferences->Sound.

Daniel, I think you managed to repair the problem. Thank you. :)

Suddenly the Sound Recorder application works too :)
I logged to another account - SR works.
I logged back to my account - SR works too. :)

THANK YOU!

It seems that Sound Recorder throws message about incorrect Sound Settings within a few seconds after changing Volume Settings using the system mixer. After a few seconds everything gets back to normal.