I have installed CentOS 6.5 on a Dell Insperion with an Intel chip. I first noticed that my microphone is not working on Skype on CentOS although it was working fine with Windows 7 on the same box. The speakers work fine on both operating systems. I did the following test.arecord -vv -d 10 test.wavaplay -vv test.wavand did not get any sound played back. I went to System:Preferences:Sound to get the Sound Preferences dialog. I went to the Input tab and Microphone was selected as the connector. I turned the input volume up to maximum and spoke into the microphone but the Input level boxes all remained a light grey like it was disabled. The only option for Choose a device for sound input is Internal Audio Analog Stereo.
Microphone not working on Centos 6.5
audio;hardware;centos