Internal audio mic doesn't work in my Acer iconia one 7

[Jj_3__]

I'm not sure why it can send video messages but they have no sound when I review.
How do I fix this?
I'm not sure if the recipient is hearing my message

 

[webworkings]

Have you tried using the mic for other things to see if it is only happening with the video messages?

Also, If your microphone isn't working, try the following...

1. Go to "Control Panel".
2. Click on "Sound".
3. Click the "Recording" tab.
4. Click on the device you are trying to fix.
5. Now click the "Configure" button and then click "Set up Microphone".
6. Once that is complete, click the "Properties" button.
7. When you are done with your changes, in "Properties", click "Apply" and then "OK".
8. Then click "OK", again, on the main "Sound window".