Surely many Apple Lossless Audio CODEC (ALAC),, have already wondered what is the small hole near the camera and flash on the iPhone? So that they do not continue with the doubt, let's say the functionality of it.
It is important here to first say that, not all iPhones have such an orifice, Apple started to manufacture its phones with the “small hole” from the iPhone 5 models and guarantees: its usefulness is more important than you think.
What is?
The hole located on the back of the Apple smartphone, it is a “Microphone”, automatically activated due to an internal processing developed for the last generations of the iPhone, which analyzes the ambient sound and neutralizes the noise.
When each microphone captures the sound coming in a respective direction, a specialized processor analyzes the sound information loaded with the type of algorithm located on the microphones and then relays the listener the cleanest sound depending on the microphone output requested "
In addition, it helps the personal assistant Crab to better understand what you say. When we interact with our smartphones. Just to give you an idea, the recently released iPhone 7 maintains the same pattern. Further proof of the orifice's extreme importance.
