Have you ever noticed a small hole on the back of your cell phone, between the back camera and the flash? If so, do you know or imagine what his real job is or why he is located directly on this website? Relax, if you are not sure of your answers, do not worry, because in this article we will take care of telling you everything you wanted to know about it, so we invite you to continue reading to discover it.
If you have an iPhone as a mobile device, you are sure to quite recognize this strange hole that is between the rear camera and the flash of your cell phone, in models such as the iPhone 6, while in others, due to its multiple cameras, locate it somewhere else close to those.
Despite the fact that absolutely all users are able to identify this element, it is quite possible that the vast majority are not really able to determine its function. So without further ado, here’s what this is all about, keep reading!
What is the gap between your camera and your cell phone flash really?
The small hole on the back of some mobile devices, usually between the back camera and the flash, may seem insignificant, however, it has an essential function for the proper functioning of the cell phone, specifically during calls.
This is because this element constitutes a secondary microphone, but it is not just any microphone, since its function is completely different from the one we know in general, since it is responsible for reducing or canceling background noise during calls, unlike others, responsible for activation during calls or audio recordings , in order to capture and convert the emitted sound (sound waves) into an electrical signal to increase its intensity, transmit and record it.
In this way, this strange hole on the back of the phone serves the purpose of separating people’s voice from background noise during calls, such as the sound of traffic when you’re on a street or when you’re near a building. . This allows the receiver to hear more clearly and without distortion due to the noise of the environment in which the transmitter is located during calls.
In general, most mobile devices have this secondary microphone, although depending on the brand and model, it will be in a different position, often on the top or back of the mobile phones, but in all cases it is designed and added to improve call quality for users.
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