Hello All, I am a newbee to LinuxAudio and am trying to get a headset microphone working. Here is some results from testing that someone else did on another site for their system. cat /proc/asound/pcm 00-04: Intel ICH - IEC958 : Intel 82801DB-ICH4 - IEC958 : playback 1 00-03: Intel ICH - ADC2 : Intel 82801DB-ICH4 - ADC2 : capture 1 00-02: Intel ICH - MIC2 ADC : Intel 82801DB-ICH4 - MIC2 ADC : capture 1 00-01: Intel ICH - MIC ADC : Intel 82801DB-ICH4 - MIC ADC : capture 1 00-00: Intel ICH : Intel 82801DB-ICH4 : playback 1 : capture 1 arecord --list-devices **** List of CAPTURE Hardware Devices **** card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 0: Intel ICH [Intel 82801DB-ICH4] Subdevices: 0/1 Subdevice #0: subdevice #0 card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 1: Intel ICH - MIC ADC [Intel 82801DB-ICH4 - MIC ADC] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 2: Intel ICH - MIC2 ADC [Intel 82801DB-ICH4 - MIC2 ADC] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: I82801DBICH4 [Intel 82801DB-ICH4], device 3: Intel ICH - ADC2 [Intel 82801DB-ICH4 - ADC2] Subdevices: 1/1 Subdevice #0: subdevice #0 arecord -f dat -D hw:0,1 -d 20 test.wav Recording WAVE 'test.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo arecord: pcm_read:1473: read error: Input/output error arecord -f dat -D hw:0,2 -d 20 test.wav Recording WAVE 'test.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, Stereo arecord: pcm_read:1473: read error: Input/output error In each case above, the file test.wav is 44 bytes but, arecord -f dat -D hw:0,3 -d 20 test.wav the file test.wav is 3840044 bytes but has no sound when I play it back. I have no idea how to use alsamixer, so I do not know if there is a problem there or what. I downloaded a script called alsa-info.sh and ran it. It gave extensive information about my system, but I could not understand most of what it output and how to identify my problem from the information. ######### Snip of initial info from alsa-info.sh run ################ upload=true&script=true&cardinfo= !!################################ !!ALSA Information Script v 0.4.56 !!################################ !!Script ran on: Sun Jun 21 23:34:42 UTC 2009 !!Linux Distribution !!------------------ CentOS release 5 (Final) CentOS release 5 (Final) !!DMI Information !!--------------- Manufacturer: HP Pavilion 061 Product Name: DN008A-ABA a307x !!Kernel Information !!------------------ Kernel release: 2.6.18-128.1.14.el5 Operating System: GNU/Linux Architecture: i686 Processor: i686 SMP Enabled: Yes !!ALSA Version !!------------ Driver version: 1.0.14rc3 Library version: 1.0.17a Utilities version: 1.0.17 !!Loaded ALSA modules !!------------------- snd_intel8x0 !!Sound Servers on this system !!---------------------------- ESound Daemon: Installed - Yes (/usr/bin/esd) Running - No aRts: Installed - Yes (/usr/bin/artsd) Running - No !!Soundcards recognised by ALSA !!----------------------------- 0 [I82801DBICH4 ]: ICH4 - Intel 82801DB-ICH4 Intel 82801DB-ICH4 with ALC650E at irq 137 !!PCI Soundcards installed in the system !!-------------------------------------- 00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 02) ########## End Snip of initial info from alsa-info.sh run ############### Could someone please point me in the right direction(s) to getting my microphone working? The sound works fine! Regards, Murrah Boswell