Apple TV Audio

We have a couple Apple TVs connected to our DeckLink cards and the audio sounds high-pitched/distorted.
The issue did not happen until recently, so I think it's due to a software update.
I have tested all the audio settings in the Apple TV but nothing fixes the issue.
Non-Apple TV devices work fine and we have the same problem on both DeckLink cards.
-God Bless
The issue did not happen until recently, so I think it's due to a software update.
I have tested all the audio settings in the Apple TV but nothing fixes the issue.
Non-Apple TV devices work fine and we have the same problem on both DeckLink cards.
-God Bless