When I am on Skype my microphone works then doesn't work. It is a logitech webcam/microphone.

Launch the Logitech QuickCam or Webcam software on your computer. Verify that you see yourself Logitech Webcam software window. Close the software window. Sign in to Skype. Click the "Tools" menu and select "Options." Click "Video Settings," check the "Enable Skype Video" and "Start my video automatically when I am in a call" boxes. Select your Logitech QuickCam from the drop-down list. Your webcam should display video in the window. Click "Audio Settings" if your QuickCam has a built-in microphone and select it from the microphone drop-down list. Check the "Let Skype adjust my audio settings" box in "Audio Settings" so Skype recognizes your microphone. Click "Save" to save the options for your audio and video settings. Skype will close the options menu.

SKYPE VIDEO PROBLEM
To test if the Logitech QuickCam is functioning, check the USB cable; make sure it is connected properly. Then click on Start - All Program - Logitech - Logitech QuickCam and see if you can get the camera to capture your image/video. If this works then the fault is with the Skype configuration. Sometimes the WEBcam settings drop off and the WEBcam need to be selected again. Open Skype - Tools - Options - Video Settings and select the Logitech QuickCam Also check the Audio Settings for the Microphone THEN click on Save. Avoid connecting the WEBcam to an USB hub. SKYPE MICROPHONE PROBLEM
If the person cannot hear you then, either your microphone driver not installed or not working OR the microphone is not configured in Skype.
To test your microphone then click on Start - All Programs - Accessories - Entertainment - Sound recorder. Then record your voice and then play it back. If this is OK then the microphone need to be configured in Skype.
To configure the microphone - Open Skype - Tools - Options - Audio Settings for the Microphone THEN click on Save.

HI there go in call option in skype and make default your microphone from there. After that it will start work again. Thanks.

Yes, I have a Logitech WEBcam (not the same model) and I use Skype.
After you installed Skype then :-
To test if the Logitech QuickCam is functioning, check the USB cable; make sure it is connected properly. Then click on Start - All Program - Logitech - Logitech QuickCam and see if you can get the camera to capture your image/video.
If this works then the fault is with the Skype configuration. Sometimes the WEBcam settings drop off and the WEBcam need to be selected again. Open Skype - Tools - Options - Video Settings and select the Logitech QuickCam
Also check the Audio Settings for the Microphone THEN click on Save.
Avoid connecting the WEBcam to an USB hub.

If the Logitech works then the fault is with the Skype configuration. Sometimes the WEBcam settings drop off and the WEBcam need to be selected again. Open Skype - Tools - Options - Video Settings and select the Logitech QuickCam
Also check the Audio Settings for the Microphone THEN click on Save.

To test if the Logitech QuickCam is functioning, check the USB cable, make sure it is connected properly. Then click on Start - All Program - Logitech - Logitech QuickCam and see if you can get the camera to capture your image/video.
If this works then the fault is with the Skype configuration. Sometimes the WEBcam settings drop off and the WEBcam need to be selected again. Open Skype - Tools - Options - Video Settings and select the Logitech QuickCam
Also check the Audio Settings for the Microphone THEN click on Save.

There maybe a patch available with a later driver
Go to Device Manager, Expand 'Imaging' folder and right click on your webcam text. 'Update driver' and use internet option.

Check your webcam is set to default in Skype

Start Skype.

On the Tools menu, click Options.

In the navigation pane of the Skype Options window, click Audio Settings.

Select your logitech device as the default microphone. For example, select Logitech + model#.( if it has mic )

In the navigation pane of the Skype Options window, click Video Settings.

Select your Logitech device as the default Webcam. For example, select Logitech + model #

Click Save.

Failing that check if you have the latest version of Skype

I tried it again with the camera plugged in (duh) -- and the driver reappeared, the microphone works fine -- I successfully completed a Skype test call. I don't understand why it works that way, but now I know.

Why isn't the microphone on my camera working?
Answer The microphone may not work because of a hardware or configuration problem. To determine if it's a hardware problem, test the microphone in Sound Recorder.

1. Click "Start," > "Programs" ("All Programs" for Windows XP) > "Accessories" > "Entertainment" > "Sound Recorder."
2. Click the Record button and speak into the microphone of the camera. You should see the green line move, indicating the application is picking up sound.
3. Click the Stop button.
4. Click the Play button. If there is no sound at playback, check to make sure the correct device is selected.
   1. Click "Edit," then "Audio Properties."
   2. Make sure Logitech is listed as the Preferred device for "Sound recording."

The microphone may also be defective. To test this, try the camera on another USB enabled system.
If you can record sound in Sound Recorder, but not in the QuickCam application, try setting the Logitech Microphone as the Preferred device in Audio Properties.

This article covers how to configure a Logitech camera's audio and video settings to work with Skype 3.6 or above. Answer This article applies to the following cameras:
QuickCam Orbit AF
QuickCam Pro for Notebooks
QuickCam Pro 9000
This article applies to the following platforms:
Windows Vista
Windows XP
This article applies to the following 3rd party application:
Skype™ 3.6 or above

To set up Skype for video please be sure that your Logitech webcam is connected and working. This can be verifed by launching your QuickCam software and checking for a video stream withinin the QuickCapture video window. Once the webcam functionality is verified, please close the QuickCam application and follow the steps below.

1. Launch Skype™ and click on "Tools" as shown in the figure below
   
   Fig 1
   
2. When you click on "Tools" you will see a drop down list
   
   Fig 2
   
3. Click on "Options" at the bottom of the drop-down list
   
   Fig 3
   
4. A new screen appears. Click on the left side of the pane under "Video Settings"
   
   Fig 4
   
5. Under the "Select webcam" drop down, please choose your Logitech camera, then click the "Save" button.
   
   Fig 5
   
6. Click on "Tools" as shown in Fig 6 to get your Logitech Audio setup.
   
   Fig 6
   
7. When you click on "Tools" you will see a drop down list
   
   Fig 7
   
8. At the very bottom of the drop down list, please click on "Options"
   
   Fig 8
   
9. When you click on "Options" you will see a new screen
   
   Fig 9
   
10. On this new screen click on the left side of the pane under "Audio Settings"
    
    Fig 10
    
11. You will now have the option to select your Logitech camera's Microphone as your main Audio source. Under the "Microphone" drop down, select the Logitech Microphone, and click "Save"
    
    Fig 11
    
12. You should now be ready to use your Logitech webcam and microphone in a Skype video call.

recored sound