IPhone has a feature called phone noise cancellation that helps to reduce background noise during phone calls. This feature uses air pressure to minimize ambient noise and improve the clarity of the audio when you hold the receiver to your ear.
The purpose of phone noise cancellation is to enhance your listening experience by reducing the distractions caused by surrounding noise. It can be particularly useful in noisy environments where it may be difficult to hear the person on the other end of the call.
The iPhone 12 and earlier models come with phone noise cancellation enabled by default. This means that whenever you make or receive a phone call and hold the phone to your ear, the device will actively work to reduce the background noise. This feature is designed to enhance the audio quality and make it easier for you to have a conversation, even in challenging acoustic conditions.
However, it’s important to note that phone noise cancellation may not completely eliminate all background noise. While it can significantly reduce ambient sounds, it may still allow some minimal noise to pass through. The effectiveness of the noise cancellation feature can also vary depending on the specific environment and the level of noise present.
If you find that the phone noise cancellation is not meeting your preferences or if you simply prefer to have the ambient noise present during your phone calls, you have the option to turn off this feature. You can do this by going to the settings on your iPhone and disabling the phone noise cancellation feature.
To summarize, iPhone utilizes phone noise cancellation to reduce background noise during phone calls. This feature enhances the audio quality by minimizing distractions caused by ambient sounds. It is on by default on iPhone 12 and earlier models but can be turned off if desired.