What's with the phone noise?

The reasons why the mobile phone makes noise are as follows:

1, resulting from charging.

If there is noise, it may be caused by turning on the background sound effect of the call, but if there is a lot of noise, it can basically be determined that the source of this sound is "current sound". When some mobile phones are powered on, there will be a "leakage phenomenon" because of the design defects of the mobile phones. When the leaked current passes through the speakers of the mobile phones, it will make a lot of noise.

2. Electromagnetic interference.

When we make a phone call, we rely on the microphone and receiver of the phone, and such devices are either magnets or electromagnetics. Once they encounter electromagnetic interference, they will inevitably make some noise, which is also scientifically based.

So, if you find the phone is noisy and loud during the call, you might as well try another place. It may be that there is electromagnetic interference nearby, which makes your mobile phone noisy.

3. The horn is broken.

The most common problem is that the receiver of mobile phone is flooded, which leads to the wiring of the receiver. When we use the microphone of mobile phone to input sound, or use the receiver or external speaker to output sound, because the receiver is short-circuited, it will also make a lot of noise.

What happened when the other party couldn't hear my voice on the phone?

There are two reasons why the other party can't hear the sound, one is the function setting of the other party's mobile phone, and the other is the failure of the other party or the internal components of his mobile phone.

Solution:

1. First determine which mobile phone is faulty, and call another friend with your own mobile phone and the other person's mobile phone to see whose mobile phone is faulty.

2. If there is something wrong with the other party's mobile phone, first adjust the volume of the call, that is, the volume of the receiver on the screen of the mobile phone, and press the up key on the side of the mobile phone to adjust it to the maximum.