When two people are on a call, how does one mobile phone block the system/app sounds from the phone (but not the caller’s voice)?

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When two people are on a call, how does one mobile phone block the system/app sounds from the phone (but not the caller’s voice)?

In: Technology

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Anonymous 0 Comments

Most phones nowadays have multiple mics

Let’s say.
mic 1 picks up your voice + background noise.

Mic 2 picks up background noise only

Your phone now knows to do mic 1 noise minus mic 2 noise = clearer voice