This small but extremely important hole that many people don’t notice is actually the microphones that are elegantly built into the design of the phone. Overlooked by many users, these microphones are essential to ensure that the sound in our communications is clear and noise-free.
The small hole is specifically for a secondary microphone, which is used to reduce background noise during calls.
The fascinating thing about this noise canceling technology is that it adds noise to cancel out the existing background noise, making the sound clearer to the person you’re talking to.
Confusion can easily arise with the SIM card tray, which is also located on the bottom of many phone models. It can be difficult to distinguish between the hole for the SIM card tray and the secondary microphone, which can lead to confusion.
In addition to the microphone at the bottom, many high-end smartphones also have a microphone located near the camera on the back. This hole, found on models such as the iPhone, is used especially during video recording. It helps to improve sound quality by using techniques such as sound zoom or omnidirectional sound recording.
Having multiple microphones in a smartphone is not just a technical feat; it is necessary to improve the quality of our calls, voice recognition for assistant software and the audio quality of our video recordings.
These small, often overlooked holes play an important role in delivering high-quality audio communication and recording that meets the demands of the digital age.
Source: xatakamovil.
