I have installed my Matrix webcam but the

1st You download Webcam Driver.
Web Cam Drivers After this install the Webcam driver in the system.
Installation of Webcam Driver
Go to the control panel
Click on the System Icon
Click on the Hardware Tab
Click on the Device Manager s
Select the Unknown Device or printer device where yellow Question Marks sign on it.
Right click on it and uninstall it.
After this go to the top of the device manager and click on scan for hardware changes.
Driver installation Wizard start.
Brows Your Driver from the Hard Disk and click on next.
Driver will be install.
Other Companies Camera Drivers for Windows XP Vista Windows 7

Yes, it is because GearHead WC330I WebCam has built-in microphone and apparently you also installed it's microphone.

What you can do now is to select which microphone to use and disable the other one.

Got to "Control Panel" Select "Sound" icon. From the "Sound Window" select "Recording" tab and disable one of your microphone which you don not want to use.

Hope this helps you. Thank you for using Fixya.

pretty sure that camera has no microphone

check your volume control if the microphone is mute.click also the advance tab and check the box containing 1 microphone +20 db boost.

you'll need to select the camera you're using in order for both video and audio will work together.

Normal 0 Go to Control Panel and Click on Sounds, Click on Audio, then Click on the Microphone. Then Click on the drop down and select Camera Microphone.
Click OK and it should work.
Hope this helps. Bud

I too have it problem. Camera work, microphone don't work.
I installed new driver camera gspcav1, camera show better, but sound no. Changing microphone setting in sound setting, but no resultat.

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.

problem solved thanks had to book into a stress clinic but still I have a microphone thanks for the message

I have the current software for that perticular webcam email me at [email protected] and ill give u a copy!