microphone not working on ipad air

Hi Nb_99,

Welcome to the Apple Community.

Apple support have articles online that may help troubleshoot.

If the microphones on your iPad aren't working

(If the sound is unclear during FaceTime calls,

in video recordings, or in apps, learn what to do.)

https://support.apple.com/en-us/HT210896

And

If you hear no sound or distorted sound from your iPhone, iPad, or iPod touch speaker

https://support.apple.com/en-us/HT203794

If needed:

There is a "Get Support" link to Apple at top right on this discussion page.

OR

See a list of Apple phone numbers around the world

https://support.apple.com/en-us/HT201232

If your country is not listed: 

Apple Assistance:

Choose your country or region:

https://support.apple.com/choose-country-region

Hope this helps :-)

Thank you for letting us know.

Seems staff at Apple have a busy time, and especially during covid disruptions.

If you have an Apple Store handy, you could make an appointment there.

How to make a Genius Bar reservation at your favourite Apple Store, and get help from an Apple expert.

Genius Bar Reservation and Apple Support Options - Apple

All the best :-)