My inspiron 1521 laptop, the webcam works, but no one can hear me talking. How would I get this working aga?

My inspiron 1521 laptop, the webcam works, but no one can hear me talking. How would I get this working againMy inspiron 1521 laptop, the webcam works, but no one can hear me talking. How would I get this working aga?
Go to Start%26gt;Control Panel%26gt;Sounds and Audio Devices%26gt;Audio...





then see what the Sound Playback and Sound Recording settings are....they should be ';Integrated Audio';, meaning your mic and phones, generally...My inspiron 1521 laptop, the webcam works, but no one can hear me talking. How would I get this working aga?
Reinstall the driver file