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I am a very new user of Ubuntu and am not very tech savy at all!

I have just installed Ubuntu 12.10 and am trying to set up skype on my Dell Inspiron 6400.
My Mikomi DC-7120 webcam works but audio input does not.
When I go to the sound manager on the system setting tool it shows the audio input device is present but if I make a noise it does not register this at all.
I thought perhaps the microphone on the webcam was not recognized so I tried plugging a set of headphones into the audio input jack: The system recognizes that another input device is present but will not register any sound being "heard" no matter how loud I am.

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marked as duplicate by Bruno Pereira Sep 17 '13 at 10:16

This question was marked as an exact duplicate of an existing question.

I also have a Dell Inspiron. My model is 1545. Previous versions of Ubuntu 12.04 (last year) had sound input from my internal microphone without any action on my part. The current update to version of 12.04 no longer accepts the internal microphone unless I use the methods described below. Thus, I used Skype, and sound recorder successfully on previous versions of 12.04 and can use the internal microphone on Windows 7 without intervention, but have to intervene on the latest version. (My laptop is dual-boot). My version of Ubuntu is KXStudio.

I found the solution for this problem on the current 12.04 version by looking at the first entry in the questions section:

Internal microphone not working

If you do not have Pulse Audio Volume control, go to software center and download/install it. Once you have installed it, check your volume control to be sure the volume is OK. Note: The small microphone symbol for each microphone input is effective when it is highlighted in a grey darker than the surrounding window. Otherwise it is mute.

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