My iPad pro M1 microphone is not work only for voice chart app

Hey Whathappen,

Welcome to Apple Support Communities. Since restarts have resolve issues, restart the iPad: Restart your iPad

Also, make sure the iPad is up-to-date by following the steps below:

1. "Back up your device using iCloud or your computer.
2. Plug your device into power and connect to the internet with Wi-Fi.
3. Go to Settings > General, then tap Software Update.
4. Choose the software update that you want to install. You can choose to stay on iOS or iPadOS 15 and still get important security updates. Or you can choose the option to upgrade to iOS or iPadOS 16.
5. Tap Install Now. If you see Download and Install instead, tap it to download the update, enter your passcode, then tap Install Now. If you don't know your passcode, learn what to do."

The steps above are also listed in this article: Update your iPhone or iPad.

If the issue continues, the steps in this article that may help: If the microphones on your iPad aren't working.

Take care.

Hey there, Whathappen!

If Siri can't hear you and you also can't record audio in videos, please reach out to Apple Support for assistance: Contact Apple for support and service - Apple Support

Regards.

Whathappen,

Please get in contact once again to see if they can help.

Regards.