摘要：蚊子飞行时翅膀快速振动，每秒可达几百次，能产生 200 - 600 赫兹的声音，而人类听觉对 2000 - 5000 赫兹的声音最为敏感，蚊子飞行声音频率接近这一范围，所以相对容易被我们察觉且感觉声音明显。

一只蚊子个体虽小，但它发出的嗡嗡声人类往往会感觉比较大，主要有以下几方面原因：

声音频率与人类听觉敏感范围匹配

蚊子飞行时翅膀快速振动，每秒可达几百次，能产生 200 - 600 赫兹的声音，而人类听觉对 2000 - 5000 赫兹的声音最为敏感，蚊子飞行声音频率接近这一范围，所以相对容易被我们察觉且感觉声音明显。

安静环境的衬托

通常在夜晚休息时，周围环境较为安静，背景噪音很低。

此时蚊子飞行产生的嗡嗡声就显得尤为突出，即使声音本身强度不大，在安静环境下也会被我们清晰地感知到。

声音距离近

蚊子喜欢在人类头部周围飞行，离耳朵很近。

根据声音传播的特性，声音强度与距离的平方成反比，距离越近，听到的声音强度越大。

所以当蚊子在耳边飞时，其嗡嗡声听起来就会比较大。

大脑的关注和放大

蚊子的嗡嗡声可能会引起人们心理上的烦躁和警觉，大脑会对这种声音给予更多的关注。

这种心理上的聚焦效应会让我们主观上觉得蚊子的声音比实际更大、更烦人！

Although a mosquito individual is small, its buzzing sound often feels large in humans, mainly for the following reasons:

The frequency of sound matches the sensitive range of human hearing

The wings vibrate fast as mosquitoes fly, hundreds of times per second, and produce 200 to 600 Hertz sounds, while human hearing is the most sensitive to the sound of 2000 to 5,000 Hertz, and the frequency of mosquito flight sounds is close to this range, so it is relatively easy to detect and feel the sound is pronounced.

A foil to a quiet environment

Usually at night breaks, the surrounding environment is quieter and the background noise is low.

At this time, the hum of mosquito flight is particularly prominent, even if the sound itself is not very strong, it will be clearly perceived by us in a quiet environment.

Sound distance

Mosquitoes like to fly around the human head, close to the ears.

According to the characteristics of sound propagation, the intensity of sound is inversely proportional to the square of distance.

So when mosquitoes fly in their ears, their buzzing sounds bigger.

Attention and amplification of the brain

The mosquito's buzzing may cause psychological irritability and alertness, which the brain pays more attention to.

This psychological focus effect will make us subjectively think that mosquitoes are louder and more annoying than they are!

来源：科学抢先知