India, Feb. 26 -- Most users notice the tiny hole next to the iPhone camera but rarely realise it plays a key role in how Apple records and processes sound. It is likely that most iPhone users have seen the small hole that is placed on the side of the back camera and ignored it as a design factor but it is actually a microphone that contributes to the way the phone captures and processes sound. Because Apple has loaded faster chips, improved cameras and extended battery life over the years, it has also made modifications to the audio system, which in this case, has fitted a significant part such as this mic right in our plain view.

The iPhone back camera microphone is designed to capture directional audio from the scene you are recording...