Hey there heylee13,
First, we recommend checking to see if this happen while paired with another device. If it does, go ahead and reset your AirPods to help correct sound issues. You'll find the steps to reset below:
1. Put your AirPods in their charging case, and close the lid.
2. Wait 30 seconds.
3. Open the lid of your charging case.
4. On your iPhone, iPad, or iPod touch, go to Settings > Bluetooth and tap the More Info button
next to your AirPods. (If you don't see your AirPods in Settings > Bluetooth, just go to the next step.)
5. Tap Forget This Device, and tap again to confirm.
6. With the lid open, press and hold the setup button on the back of the case for about 15 seconds, until the status light flashes amber, then white.*

7. Reconnect your AirPods: With your AirPods in their charging case and the lid open, place your AirPods close to your iPhone, iPad, or iPod touch. Follow the steps on your device's screen.
How to reset your AirPods and AirPods Pro - Apple Support
Take care!