Many friends when using mobile phones, found that their microphone sound is particularly small, the other party feedback can not hear what they are saying, but do not know how to solve this problem, this issue of the article to talk about "microphone sound is small" what to do.

Sometimes the sound of the mobile phone microphone is small, which does not mean that our mobile phone has a problem, it may be caused by the failure of the other party's mobile phone. For example, the other party's call volume is not turned on to the maximum, or the earpiece dust is larger, blocking the earpiece, which will cause the phone to become smaller when receiving the volume.
Therefore, in this case, don't rush to deal with your mobile phone, first ask the other party whether the call sound is turned on and whether the earpiece is blocked.
The mobile phone microphone is a small hole that is a little thinner than the pencil refill, and there is a layer of filter on the outside of the hole, and inside the filter is a sound acceptance chip that can convert the user's voice into a digital signal. If there is some dust or dirt stuck to the outside of the filter, the effect and quality of the mobile phone microphone to receive sound will be greatly reduced.
If you find that the sound of the mobile phone microphone has become smaller, it is best to check whether the microphone is blocked, especially some small white users and the elderly, who do not know that the hole is the microphone.
If you find something dirty in the microphone hole, the sound will become much louder after cleaning.
To be honest, I really don't want to mention this reason, but it's really common in reality. The gesture of normal people calling and the method of holding the mobile phone are placed next to the ear in the upper earphone position of the mobile phone, and then the lower part of the mobile phone is close to the face, and the face is kept close to the state, bearing a 180-degree parallel state. This way the microphone and earpiece are closest to the mouth and ears, which is how most people call.
But some people have to take some strange posture when calling, although the earpiece is placed next to the ear, but the microphone is far from the mouth, there are some strange users, even the phone and the face of the "90 degrees" right angle, the power of the mobile phone microphone itself is small, and so far away, the microphone sound is strange. And some mobile phones will have a sound anti-interference function, the mouth is far away from the microphone, the sound will be weakened.
Therefore, if you find that the microphone sound is small, don't worry about finding the reason for the microphone, under normal circumstances, as long as you don't get dirty things and don't enter the water, the probability of microphone damage is very small, first adjust your own phone gestures, maybe there will be unexpected gains.
Off-topic: The sound of the mobile phone microphone is strictly tested, the size of the sound is in line with the needs of normal users, so the small sound of the mobile phone microphone is not necessarily a problem with the mobile phone, it may be that the environment is noisy, plus the mobile phone with the "anti-eavesdropping function", once the environment of the speaker has changed, some mobile phones with anti-eavesdropping function will automatically adjust the received mobile phone sound. Therefore, the problem does not necessarily lie in your own mobile phone, it may be caused by the other party's mobile phone turning on some functions.