With Personalized Sound, Nissan and Infiniti appear to be the first automotive brands in the U.S. to offer an in-vehicle hearing test of this kind. Motivated by similar systems available in high-end headphones, the system blends clever technology with an intuitive, user-friendly interface.

“After taking the test, most drivers will notice a clear difference with their new audio profile,” Pope said. “They’ll often pick up details they didn’t before, even in songs they’ve listened to countless times. But above all, they’ll know their audio was customized just for them.”

Multiple drivers can be set up in your vehicle, and each can download their own Personalized Sound app. When they select their driver profile when starting the vehicle, their Personal Sound app profile will load too. They can also link a driver profile to each key fob to further streamline the experience.