Test of microphone on Open Suse 10.3

Hello,
I use a headphone and micro combined from Labtec. I am student and I use frequently the tool Adobe Connect to follow classes. I can hear the teacher but I cannot speak in the micro to tell something. I hope it comes from the micro configuration and I would like to test it.
I am on the x86-64 version. Could you help me ?

Regards
:slight_smile: