Microphone has stopped worked .

you can go to testmycam.com to verify it's working both the webcam and mic
or you can install any messenger software (skype, yahoo) and connect your webcam and mic there as well

On Skype run the Audio / Video setup and make sure your webcams mic is selected as the default Mic.
You will find that under tools.
I have checked and this webcam doesnt have a Mic
http://reviews.cnet.com/webcams/ezonics-ezcam-iii-web/4507-6502_7-30963495.html?tag=specs

You may just need to manually select your mic. Go to this free video mail site. Click on the mic icon and then try the choices in the drop down list. Record and play back brief recordings until you can hear yourself. Once you know the mic that works select it in Skype or other software program. It is usually under Settings, Audio.

Visit the Logitech website and browse the photo gallery for your model and click on the photo to navigate to the support page.
Note - Older models on page 2 - look for the link at the bottom right of page 1 and click on it "Still can't find your product?"

http://www.logitech.com/index.cfm/405/&cl=us,en?prodcrid=405

In addition to the Logitech installer you will need to check the support software - Microsoft DirectX . This comes pre-loaded on most Windows computers but has to be updated - I am currently on version 11
To start the DirectX Diagnostic Tool, click 'Start', click 'Run', type dxdiag in the Open box, and then click OK
Run through the tabs checking the 'notes' windows for information
The version will be shown on the 'Systems' tab

Procedure to re-install Logitech software
Close all programs while uninstalling - downloading and uploading software
Disconnect your webcam
Uninstall the current webcam software on your computer
Restart computer
Download the Installation package from Logitech
Run the installer and choose your options during the installation - You may not want Logitech Chat but the Desktop icon for the webcam toolbar is a must.
Connect your webcam when prompted.
SKYPE SET UP

Connect your webcam

Test your webcam here to make sure it broadcasts ok - Hit 'Allow' in the top window and check your cam in the left hand panel.

http://www.testmycam.com/
Not working ? - troubleshoot your drivers and software - get your cam working before moving on

Working OK ?

Set your webcam mic as default ( if it has a built in mic)

Plug in the webcam

TEST SPEAKERS
Right click on speaker icon in System Tray or from Control Panel
Select "Playback Devices"
The speaker icon ( checked as working) and volume level graph should be visible
Right click on the volume graph and click "Test"
Left hand speakers followed by right hand should be heard

SET DEFAULT & TEST MIC
Click "Recording" tab.
Right click on the volume graph and select 'Show disabled devices' and 'Show disconnected devices'
To set required (webcam) mic as default - click on mic font to highlight and click "Properties"
In lower dropbox display "Use this device enable" click 'OK'
Click "Levels" tab and ramp up sliders ( adjust to suit later)
Return to "Recording". Test mic by speaking and make sure volume graph displays

Restart computer

CONFIGURE TO SKYPE
Connect webcam
Its good practice to disconnect and re-connect your webcam before you start (To reboot the webcam software) - if you have been using it elsewhere the SKYPE software may have difficulty in locating it, even if you exited the previous program correctly.
The reason being, the webcam software can remain hooked-up to a program and needs to be rebooted.
Mine, I just unplug it from the USB and plug it back in to reboot the software.
If yours is integral with the computer you will have to re-start the computer, use a keyboard shortcut or disable / enable the webcam from the Device Manager.

Start Skype.
On the 'Tools' menu, click 'Options'.
In the navigation pane of the Skype 'Options' window, click 'Audio Settings'
Run down the list setting your defaults
Select your webcam as the default microphone.
Make a free test call
Click 'Save'
In the navigation pane of the Skype Options window, click Video Settings.
This will launch your webcam
Adjust quality of picture in 'Settings'
Check the correct webcam is shown as default
Click Save
Test your webcam by making a Skype test call.
For more information about how to configure Skype Messenger, please visit the following Skype Web site:
http://support.skype.com (http://support.skype.com)

Before opening Skype disconnect your webcam for a couple of seconds and do not open your cam for a preview but wait and let the Skype software take full control when you start a video chat.

Skype is particular about running webcams with the latest drivers.
Visit the Microsoft hardware support page
http://www.microsoft.com/hardware/download/download.aspx?category=ICE&type=LifeCam&sku=68A-00001
Fill in the details and click 'GO'
Click on the link:-
"Microsoft LifeCam Readme and Troubleshooting Information"
Read all the links
Check out any additional software you have to download if you are running Vista or Windows 7

Procedure for re-installing software
Close all programs while uninstalling - downloading and uploading software
Disconnect your webcam
Uninstall the current webcam software on your computer
Restart computer
Download the Installation package from Microsoft
Run the installer and choose your options when prompted
Connect your webcam when prompted.

SKYPE SET UP

Connect your webcam

Test your webcam here to make sure it broadcasts ok - Hit 'Allow' in the top window and check your cam in the left hand panel.

http://www.testmycam.com/
Not working ? - troubleshoot your drivers and software - get your cam working before moving on

Working OK ?

Set your webcam mic as default ( if it has a built in mic

Plug in the webcam

TEST SPEAKERS
Right click on speaker icon in System Tray or from Control Panel
Select "Playback Devices"
The speaker icon ( checked as working) and volume level graph should be visible
Right click on the volume graph and click "Test"
Left hand speakers followed by right hand should be heard

SET DEFAULT & TEST MIC
Click "Recording" tab.
Right click on the volume graph and select 'Show disabled devices' and 'Show disconnected devices'
To set required (webcam) mic as default - click on mic font to highlight and click "Properties"
In lower dropbox display "Use this device enable" click 'OK'
Click "Levels" tab and ramp up sliders ( adjust to suit later)
Return to "Recording". Test mic by speaking and make sure volume graph displays

Restart computer

CONFIGURE TO SKYPE
Connect webcam
Its good practice to disconnect and re-connect your webcam before you start (To reboot the webcam software) - if you have been using it elsewhere the SKYPE software may have difficulty in locating it, even if you exited the previous program correctly.
The reason being, the webcam software can remain hooked-up to a program and needs to be rebooted.
Mine, I just unplug it from the USB and plug it back in to reboot the software.
If yours is integral with the computer you will have to re-start the computer, use a keyboard shortcut or disable / enable the webcam from the Device Manager.

Start Skype.
On the 'Tools' menu, click 'Options'.
In the navigation pane of the Skype 'Options' window, click 'Audio Settings'
Run down the list setting your defaults
Select your webcam as the default microphone.
Make a free test call
Click 'Save'
In the navigation pane of the Skype Options window, click Video Settings.
This will launch your webcam
Adjust quality of picture in 'Settings'
Check the correct webcam is shown as default
Click Save
Test your webcam by making a Skype test call.
For more information about how to configure Skype Messenger, please visit the following Skype Web site:
http://support.skype.com (http://support.skype.com)

Before opening Skype disconnect your webcam for a couple of seconds and do not open your cam for a preview but wait and let the Skype software take full control when you start a video chat.

Skype is very particular about wecams having the latest drivers

Visit the Microsoft hardware support page
http://www.microsoft.com/hardware/download/download.aspx?category=ICE&type=LifeCam&sku=68A-00001
Fill in the details and click 'GO'
Click on the link:-
"Microsoft LifeCam Readme and Troubleshooting Information"
All the information you require should be found here, Including the latest software to download and Customer Support
Check out any additional software you have to download as well as the Lifecam software.

Procedure
Close all programs while uninstalling - downloading and uploading software
Disconnect your webcam
Uninstall the current webcam software on your computer
Restart computer
Download the Installation package from Microsoft
Run the installer and choose your options when prompted
Connect your webcam when prompted.

Test your webcam here to make sure it broadcasts ok - Hit 'Allow' in the top window and check your cam in the left hand panel.

http://www.testmycam.com/
Not working ? - troubleshoot your drivers and software - get your cam working before moving on

Working OK ?

Set your webcam mic as default ( if it has a built in mic)

Plug in the webcam

TEST SPEAKERS
Right click on speaker icon in System Tray or from Control Panel
Select "Playback Devices"
The speaker icon ( checked as working) and volume level graph should be visible
Right click on the volume graph and click "Test"
Left hand speakers followed by right hand should be heard

SET DEFAULT & TEST MIC
Click "Recording" tab.
Right click on the volume graph and select 'Show disabled devices' and 'Show disconnected devices'
To set required (webcam) mic as default - click on mic font to highlight and click "Properties"
In lower dropbox display "Use this device enable" click 'OK'
Click "Levels" tab and ramp up sliders ( adjust to suit later)
Return to "Recording". Test mic by speaking and make sure volume graph displays

Restart computer

CONFIGURE TO SKYPE
Connect webcam
Its good practice to disconnect and re-connect your webcam before you start (To reboot the webcam software) - if you have been using it elsewhere the SKYPE software may have difficulty in locating it, even if you exited the previous program correctly.
The reason being, the webcam software can remain hooked-up to a program and needs to be rebooted.
Mine, I just unplug it from the USB and plug it back in to reboot the software.
If yours is integral with the computer you will have to re-start the computer, use a keyboard shortcut or disable / enable the webcam from the Device Manager.

Start Skype.
On the 'Tools' menu, click 'Options'.
In the navigation pane of the Skype 'Options' window, click 'Audio Settings'
Run down the list setting your defaults
Select your webcam as the default microphone.
Make a free test call
Click 'Save'
In the navigation pane of the Skype Options window, click Video Settings.
This will launch your webcam
Adjust quality of picture in 'Settings'
Check the correct webcam is shown as default
Click Save
Test your webcam by making a Skype test call.
For more information about how to configure Skype Messenger, please visit the following Skype Web site:
http://support.skype.com (http://support.skype.com)

IN USE
Before you open Skype disconnect your webcam for a few seconds and do not use the Microsoft software at all. Let the Skype software take full control.

Make sure you have the very latest software
Visit the Logitech website and browse the photo gallery for your model and click on the photo to navigate to the support page.
Note - Older models on page 2 - look for the link at the bottom right of page 1 and click on it "Still can't find your product?"

http://www.logitech.com/index.cfm/405/&cl=us,en?prodcrid=405

In addition to the Logitech installer you will need to run the support software - Microsoft DirectX . This comes pre-loaded on most Windows computers but has to be updated - I am currently on version 11
To start the DirectX Diagnostic Tool, click Start, click Run, type dxdiag in the Open box, and then click OK.

Procedure to re-install Logitech software
Close all programs while uninstalling - downloading and uploading software
Disconnect your webcam
Uninstall the current webcam software on your computer
Restart computer
Download the Installation package from Logitech
Run the installer and choose your options during the installation - You may not want Logitech Chat but the Desktop icon for the webcam toolbar is a must.
Connect your webcam when prompted.

Configure to Skype

Test your webcam here to make sure it broadcasts ok - Hit 'Allow' in the top window and check your cam in the left hand panel.

http://www.testmycam.com/
Not working ? - troubleshoot your drivers and software - get your cam working before moving on

Working OK ?

Set your webcam mic as default ( if it has a built in mic

Plug in the webcam

TEST SPEAKERS
Right click on speaker icon in System Tray or from Control Panel
Select "Playback Devices"
The speaker icon ( checked as working) and volume level graph should be visible
Right click on the volume graph and click "Test"
Left hand speakers followed by right hand should be heard

SET DEFAULT & TEST MIC
Click "Recording" tab.
Right click on the volume graph and select 'Show disabled devices' and 'Show disconnected devices'
To set required (webcam) mic as default - click on mic font to highlight and click "Properties"
In lower dropbox display "Use this device enable" click 'OK'
Click "Levels" tab and ramp up sliders ( adjust to suit later)
Return to "Recording". Test mic by speaking and make sure volume graph displays

Restart computer

CONFIGURE TO SKYPE
Connect webcam
Its good practice to disconnect and re-connect your webcam before you start (To reboot the webcam software) - if you have been using it elsewhere the SKYPE software may have difficulty in locating it, even if you exited the previous program correctly.
The reason being, the webcam software can remain hooked-up to a program and needs to be rebooted.
Mine, I just unplug it from the USB and plug it back in to reboot the software.
If yours is integral with the computer you will have to re-start the computer, use a keyboard shortcut or disable / enable the webcam from the Device Manager.

Start Skype.
On the 'Tools' menu, click 'Options'.
In the navigation pane of the Skype 'Options' window, click 'Audio Settings'
Run down the list setting your defaults
Select your webcam as the default microphone.
Make a free test call
Click 'Save'
In the navigation pane of the Skype Options window, click Video Settings.
This will launch your webcam
Adjust quality of picture in 'Settings'
Check the correct webcam is shown as default
Click Save
Test your webcam by making a Skype test call.
For more information about how to configure Skype Messenger, please visit the following Skype Web site:
http://support.skype.com (http://support.skype.com)

When using Skype - do not run the Logitech software but allow Skype full control.

Skype have a very good audio set up to follow -on how to set up your mic from the control panel

Vista:
http://www.skype.com/intl/en-us/support/user-guides/sound-setup-vista/

Windows XP:
http://www.skype.com/intl/en-us/support/user-guides/sound-setup-xp/

The only thing I would add is to restart your computer before configuring the mic to your chat program

Try this
TEST SPEAKERS
Right click on speaker icon in System Tray
Select "Playback Devices"
The speaker icon ( checked as working) and volume level graph should be visible
Right click on the volume graph and click "Test"
Left hand speakers followed by right hand should be heard

SET DEFAULT & TEST MIC
Click "Recording" tab.
To set required mic as default - click on mic font to highlight and click "Properties"
In lower dropbox display "Use this device enable" click OK
Click "Levels" tab and ramp up sliders ( adjust to suit later)
Return to "Recording". Test mic by speaking and make sure volume graph displays
Restart computer
CONFIGURE TO SKYPE
est your webcam here to make sure it broadcasts ok - Hit 'Allow' in the top window and check your cam in the left hand panel.

http://www.testmycam.com/

working OK ?

CONFIGURE TO SKYPE
Connect webcam
Its good practice to disconnect and re-connect your webcam before you start (To reboot the webcam software) - if you have been using it elsewhere the SKYPE software may have difficulty in locating it, even if you exited the previous program correctly.
The reason being, the webcam software can remain hooked-up to a program and needs to be rebooted.
Mine, I just unplug it from the USB and plug it back in to reboot the software.
If yours is integral with the computer you will have to re-start the computer, use a keyboard shortcut or disable / enable the webcam from the Device Manager.

Start Skype.
On the 'Tools' menu, click 'Options'.
In the navigation pane of the Skype 'Options' window, click 'Audio Settings'
Run down the list setting your defaults
Select your webcam as the default microphone.
Make a free test call
Click 'Save'
In the navigation pane of the Skype Options window, click Video Settings.
This will launch your webcam
Adjust quality of picture in 'Settings'
Check the correct webcam is shown as default
Click Save
Test your webcam by making a Skype test call.
For more information about how to configure Skype Messenger, please visit the following Skype Web site:
http://support.skype.com (http://support.skype.com)

Normal 0 See section A. Skype in the info below to setup the Audio & Video.
Also send this to your family and friends so they have their computer setup properly.
Web Camera’s have to be setup on the program they are to be used with. Just installing the camera on your computer does not set it up to broadcast on messengers or Skype.
Each program has Options that have to be setup in order for the Audio and Video to function properly.
A. Skype Setup:
After downloading and installing Skype (http://www.skype.com/intl/en-gb/download/skype/windows/beta/downloading/) set it up as follows:

1. Go to Tools, then Options, and click on Audio Settings and set the Microphone and Speakers to the computer Audio Card.
2. Then click on the Video Settings.
3. The camera if Installed Properly will come up and show a video picture.
4. Then, on the bottom of the page click on Save.

The camera and audio should function properly. Your friends and Family will now be able to see and her to you.
B. Yahoo Setup:
After downloading and installing Yahoo Messenger (http://www.soft32.com/download_30.html ) set it up as follows:

1. Go to Messenger at the top left and click on it.
2. Next go down to Preferences and click on it.
3. Next Calling and Devices on the right and set the Microphone and Speakers to the computer Audio Card.
4. Next go to the Test Audio section and (in blue writing) click on “Open the call setup assistant” and follow the instructions on the left window.

Hope this helps. Bud