Been many years since I had to use an audio microphone with my computer. All I have is an inexpensive microphone/earphone headset. I know the device worked at one time. A few years ago I connected an audio cassette deck to my system and copied the tapes through audacity. Therefore audio in has worked with this system. I think I was using 12.2 at that time.
I'm using Slackware 13.1.
The earphone on the headset still works, but thus far not the microphone. That the earphone works indicates the wire "probably" is okay for the microphone. The separate desktop speakers work fine too.
I found nothing in a forum search.
This is a 3.5 mm jack connector, not USB.
I have an ASUS M2NPV-VM motherboard. According to the user guide, the pink connector on the on-board sound card is the microphone port. I have a case front-side connector too, which I am reasonably sure I used when I copied the audio cassette tapes.
Using arecord and aplay result in silence. Hissing noise only.
Alsamixer has all settings set to maximum except for any named "boost." KMix has the same settings. Setting the "Mic boost" option to maximum does not help.
The output of arecord -l:
**** List of CAPTURE Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: AD198x Analog [AD198x Analog]
Subdevice #0: subdevice #0
00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev a2)
I'm using the proprietary Nvidia video drivers (195.36.31).
I don't notice anything obvious in the KDE Control Center sound settings or Nvidia settings, but I could be missing something.
I'm sure I'm missing something obvious.
I appreciate any help.