What happened to the sudden decrease of the Apple Xr bell?

Solutions for IPhone XR with smaller ring:

The "Gaze Perception" function will bring the following two situations:

1. When you look at the phone, the display of the phone will not dim until you stop looking at the device.

2. If you continue to check the equipment, it will reduce the alarm volume you receive. Such as a ring tone or a short message prompt tone.

When the iphone is not in sight, we can always see whether the ringtone is normal. When we watched the iphone ready to answer the phone, the ringtone became smaller. In fact, this function is still very useful, which can save the power of some devices.

If you don't want to use this feature, you can also turn it off in the settings:

Go to settings -Face ID and password, and turn off gaze perception.

However, if you find that there are problems such as volume reduction or noise in other situations, such as listening to songs and watching videos, you need to contact Apple's authorized maintenance point for maintenance after eliminating audio damage.