A:我们在非常安静的环境中,确实会听到一些声音,这通常并不是错觉。在一个特别安静的环境里,外界的绝大部分声音都被屏蔽或吸收了。但即使是这样的环境中,也并非绝对没有声音。例如,人体自身由于生理活动而会产生一些微弱的声音。即使你的身体尽量保持静止不动,但你的心脏在跳动,血液在流动,肺在收缩和舒张,肠胃在蠕动,肌肉在收缩、颤动……,甚至你耳蜗中的液体也在流动。这些不同频率的微弱噪声,会通过空气或人体(如头骨)传到耳朵里。如果声音较大、距离耳朵较近,就可能被直接听到。 A: We do hear some sound in a very quiet environment, which is usually not an illusion. In a particularly quiet environment, most of the outside world is shielded or absorbed. But even in such an environment, it is not absolutely no sound. For example, the body itself produces some faint sound due to its physical activity. Even if your body is as static as possible, your heart beats, the blood flows, the lungs contract and relax, the stomach and stomach are crawling, the muscles are contracting and vibrating ... and even the fluid in your cochlea is flowing. These faint noises of different frequencies are transmitted to the ear through the air or the human body, such as the skull. If the sound is louder and closer to the ear, it may be heard directly.