iOS 14: How to Check Headphone Audio Level in Real Time

Last year in iOS 13, Apple introduced new hearing features in the Health app that are designed to help users avoid being exposed to high levels of sound when wearing headphones for an extended period of time. In iOS 14, Apple is advancing its hearing features by adding the ability to measure the volume level of what you're listening to in real time.
With the new feature, Apple is putting more emphasis on the health dangers of being exposed to high volume audio. Listening to something at 80 decib