More explanation and what I tried allreaydy on : this post
The Jack (TRRS connector) is multifunctional:
Because I could use a iPhone headset I think the contacts are “L-R-GRND-AUX” (not: “L-R-AUX-GRND”)
Is it possible I killed the mic by connecting a iPod headphone by pushing a button?
Is there an other possibility to check the mic? There is no onboard mic.
- headset : oK : Conected to a iPhone – recording was possible
- another Mic : nOK: tried to record with Windows Soundrecorder : still problem
- USB Mic : OK : tried to record with Windows Soundrecorder : no problem
Are you sure your computer has a TRRS jack?
The sleeve should always be ground.
check the mic without recording
Recording to the iPhone, or from the iPhone?
another Mic : nOK
tried to record with Windows Soundrecorder
Was that a "computer mic"?
Yes, I merged posts #2 and 3 from your second thread into your first one (post #1) and only binned the duplicate of post #3. I would’t delete anything important! Hopefully some of the local hardware experts can pop in soon and help you out. They’re usually good like that!
You can check the mic without recording. Double-click the speaker icon to bring-up the mixer. Then enamle the mic and bring-up the volume. You should then hear the mic-sound through the computer speakers. (You may have to click on Options -> Properties if the mic controls don't show-up.
Try plugging-in a line-level (or headphone-level) source, but tell the configuration program that you've plugged-in a mic. You'll likely overload the input and get distortion, but if it's working, you'll record something.