Why is your voice different when you listen to the recording?

If it is transmitted through the air, the sound will be affected by the environment and the timbre will change. Your own voice played in the recording is equivalent to your voice heard by others. Everyone hears his own voice, which is the result of the mixture of air conduction and bone conduction. Through this combination, the attenuation of sound energy and timbre is much less, which makes people feel that their voice is lower and louder, which is different from recording.

Wechat is one of the social software commonly used by people nowadays. Many people will play back the voice after sending it to check whether the information is missing. At this time, many people have doubts. Why is the voice recorded by WeChat voice different from what they usually hear? Not only does it not sound like your own voice, but it is also very strange and even ugly. But if you ask your friends around you, they will say that this is your voice. Curiously, someone else's voice is the same as his voice played in the recording. What's going on here?

In fact, it's not just WeChat voice, but everyone has had similar feelings when they call or karaoke. Whether you are singing or talking, your voice is different from the voice recorded by the recording equipment.

This is about how we hear the sound first. People listen to sounds with their ears. First, the external sound causes the eardrum to vibrate. The signal generated by this vibration is transmitted to the auditory nerve through the ossicles and other tissues, and then the auditory nerve transmits the signal to the brain, and people hear the sound.

The transmission of the signal generated by vibration to the auditory nerve is related to the transmission medium of sound: one of the media that human beings need to hear sound is human skull and jaw, and this transmission mode of sound is called bone conduction, also called bone conduction. Another medium is air, and sound is conducted through air, which is also called air conduction. More specifically, sound propagates in the air in the form of waves, which is what we often call sound waves. It causes the vibration of the eardrum and then transmits it to the auditory nerve. After two different modes of transmission transmit sound to the inner ear, the ear will have different impressions on the energy and timbre of the sound, so people hear different sounds.

Specifically, if it is transmitted through the air, the sound will be affected by the environment, the energy will be greatly attenuated, and the timbre will also change. When we listen to our own voice playing or recording on WeChat, it is equivalent to your voice being heard by others, all through air conduction, not through bone conduction.

Everyone hears his own voice, which is the result of the mixture of air conduction and bone conduction. Part of the sound is transmitted to the auditory bone through air, and part of it is transmitted to the skull through the pronunciation of the throat, and directly vibrates to the inner ear. Through this combination, the attenuation of sound energy and timbre is much less, which makes people feel that their voice is lower and louder, which is different from what others have heard and recorded.

Some people think it's hard to listen to their own voice in the recording, but it's not hard to listen to, just because the recording can only be done through the air. Listening to their own voice in peacetime is different, and we are not used to it.