What is the difference between iPhone's 'Phone Noise Reduction” and 'Voice Highlight” functions, and how to enable them?

For users who need to make frequent calls due to work or life needs, it is necessary to understand the "Phone Noise Reduction" and "Voice Highlight" functions on the iPhone. So what is the difference between these two functions and how to enable them? Let’s take a look at the introduction below.

Phone Noise Reduction

This feature can be found in iPhone Settings-Accessibility-Audio/Visual.

When you turn on this feature, make or answer a call while the handset is playing Noise cancellation reduces ambient noise on the phone when it's in your ear. For example, when answering a call in a noisy environment, this feature will effectively help you reduce the noise around you, allowing you to hear clearly what the other party is saying.

Voice Highlight

The Voice Highlight feature is a feature introduced by Apple in iOS 16.4 and later versions. When you answer or make a call in a noisy environment, turning on this feature can make your voice clearer, which means reducing the noise heard by the other party and amplifying your voice.

This feature can be turned on in the iPhone Control Center (the iPhone needs to be updated to iOS 16.4 or above):

During a call, swipe down from the upper right corner of the interface to open the Control Center - Microphone mode, and then tap "Voice Highlight" to turn it on.

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