Inspect the webcamera for mic outlets. Usually, prior external webcameras required separate microphones to capture sound. However, inspect the camera for any builtin mic outlets.
Try right clicking the speaker in the system tray, and selecting "recording devices" make sure the microphone (or the recording device you want to use yours might be web cam) has a green check.
You can also right click the device and select "properties" for more options that might help in your trouble shooting.
let me know it this works for you, Post your answers as a comment or reply and I'll be notified.
Answers & Comments
Inspect the webcamera for mic outlets. Usually, prior external webcameras required separate microphones to capture sound. However, inspect the camera for any builtin mic outlets.
Try right clicking the speaker in the system tray, and selecting "recording devices" make sure the microphone (or the recording device you want to use yours might be web cam) has a green check.
You can also right click the device and select "properties" for more options that might help in your trouble shooting.
let me know it this works for you,
Post your answers as a comment or reply and I'll be notified.