Hi MohammadAlizadehNew,
The following steps address what you're describing specifically, and should provide a solution:
"What you need
To set up Personalized Spatial Audio, you need an iPhone with iOS 16 and the TrueDepth camera.
After you sign in with your Apple ID, you can use Personalized Spatial Audio on these devices:
- AirPods Pro (1st or 2nd generation), AirPods Max, AirPods (3rd generation), or Beats Fit Pro
- Audiovisual content from a supported app
- An iPhone or iPod touch with iOS 16 or later; an iPad with iPadOS 16.1 or later; an Apple Watch with watchOS 9 or later; an Apple TV with tvOS 16 or later; or a Mac computer with Apple silicon and macOS Ventura."
You can find these steps along with other information that may be helpful, here: Listen with Personalized Spatial Audio for AirPods and Beats - Apple Support
For your AirPods volume control, the steps here should help you get those settings back to your liking:
Pause, skip, and adjust volume with your AirPods and AirPods Pro - Apple Support
We hope this helps.
Cheers!