Many people still don’t know the purpose of this little hole

How does noise reduction work?

Modern smartphones incorporate two noise-canceling microphones, positioned at the top and bottom of the device. This system captures ambient sounds to distinguish them from your voice. The secondary microphone, often the bottom one, analyzes the surrounding noise and reduces it before the sound is transmitted to the other person. Think of it as a discreet assistant that takes care of sweeping away noise to transmit only the essential part of your voice.

Why a microphone at the bottom of the phone?

The position of the secondary microphone is no accident. Placed close to your mouth, this microphone accurately captures the sound vibrations of your voice. By reducing ambient noise, it delivers clear, amplified sound. The difference is noticeable during calls in noisy locations, such as busy streets or cafes. This strategic positioning ensures that, even if the ambient noise is high, the person you’re talking to hears only your voice.