Why is the voice of oneself speaking different from the recording?

That's because recordings are recorded by electronic devices, processed sounds, and normally our voices are transmitted directly through the air to our ears.

Because the sound of one's own speech, in addition to air transmission, there is also a part of it transmitted through the vibration of the skull and eardrum, and there is an inevitable distortion phenomenon. The tape recorder is only airborne, and the sound transmitted through the air is affected by the environment, and its energy will produce a large amount of attenuation, and its timbre will also change.

Because the essence of sound is vibration, when the voice of oneself is received by the ear, it is transmitted by the air and the vibration of the skull and eardrum, while the recorded sound is only transmitted by the air.

There are three stages of sound from the time it is produced to the time it causes hearing: the sound source vibration produces the sound that propagates in the medium in the form of sound waves and the auditory system receives the sound. When a person speaks, the vocal cords vibrate and make sounds, recorded with a tape recorder, the sound is only transmitted through the air, and when you hear it, there are two ways of propagation of sound waves, one is through bones and muscles, one is through the air, and finally meets in the auditory nerve.

In addition, bones and muscles have better sound transmission performance than air, so you can try it and hear it yourself even if you block your ears and speak in a small voice. At the same time, it will certainly have a certain effect on the tone and timbre of the sound produced by the vocal cords, so that the sound that the person himself hears is certainly different from the sound recorded by the tape recorder. However, the sound recorded by the recorder is what others hear about you.

During recording, the sound causes the microphone to produce an induced current that changes with the sound, and the audio current is amplified by the amplification circuit and enters the coil of the recording head, which generates a magnetic field that changes with the audio current at the gap of the head. The magnetic tape moves close to the gap of the magnetic head, and the magnetic powder layer on the tape is magnetized, and the magnetic signal of the sound is recorded on the tape; Recording your own voice will be different from what you feel because the microphone you record is on the outside of your head, the playback device is also on the outside of your head, and the sound you feel when you speak by yourself contains the resonance inside the skull. In other words, what you think is your own voice has never been the kind of voice that others hear.

The reason why the voice that I record is different from my own voice is that the sound that comes out of the recording is not the same as the way we hear our own voice when we speak. When the sound transmitted through the air is affected by the environment, its energy will produce a large amount of attenuation, and its timbre will also change, when it reaches other people's ears, it will pass through the outer ear, eardrum, middle ear, and finally enter the inner ear, this process will also have an impact on the energy and timbre of the sound; The sound transmitted through the skull passes directly to the inner ear through the bone between the throat canal and the ear, and the attenuation and change of sound energy and timbre are relatively small.

Therefore, there will be a certain difference in energy and timbre between listening to your own voice and hearing your own voice through a tape recorder.

This is because in the process of recording, it will be affected by the medium, and it is also related to the equipment you are recording, usually when you speak and listen to the sound, the pinna is behind the sound, so the sound you hear is different.

Because the medium is different when we record. When recording, your voice will be mixed with some sounds from your nasal cavity, and the sound of ordinary speech is directly heard by you, so it will feel different.

A recording microphone amplifies the sound. Because our voices were amplified during the recording, it was different from when we were talking.

Yes. Because of the phenomenon of bone transmission, the voice you hear is different from the voice heard by others, so the voice in the tape recorder is the same as the voice heard by others.

People usually hear their own voices, not only from their ears, but also through the vocal cords that vibrate the brain and through the bones and muscles to the ears, while with a tape recorder, the sound heard is only transmitted from the air to the ears. This makes the pitch of the voice different, but the sound you hear in the tape recorder is the same as when others hear you talking.

Sound travels in the air in the form of "longitudinal waves".

A longitudinal wave is a wave in which the direction of vibration of a particle is coaxial with the direction of propagation. For example, when a gong is struck, the direction of vibration of the gong is consistent with the direction of propagation of the wave, so the sound wave is a longitudinal wave. Longitudinal waves are a type of wave (fluctuations are divided into transverse and longitudinal waves).

Also known as "dense waves", the propagation process of longitudinal waves is the appearance of different dense parts along the direction of the wave.

If it travels through the air, the sound is affected by the environment and the timbre changes. The voice of the ** in the recording is equivalent to your voice heard by others. And everyone hears their own voice, which is the result of a mixture of air conduction and bone conduction, through this combination, the energy and timbre of the voice are much less attenuated, which will make 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, and many people will play back their voices after sending voice to check whether the message is missing. At this time, many people have questions, why is their voice recorded by WeChat voice different from what they usually hear? Not only is it not like its own voice, it is somewhat unfamiliar, and even a little unpleasant.

But if you ask your friends, they'll say that's your voice. And the wonderful thing is that the voice of someone else is the same as his voice in the recording. What's going on?

In fact, not only WeChat voice, but also people have similar feelings when they play ** or K song. Whether you are singing or talking, your voice is not the same as the voice recorded by the recording equipment.

Let's start with how we hear sounds. People listen to sounds by ear, first, the sound from the outside world causes the eardrum to vibrate, and 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 the person hears the sound.

The transmission of the signal generated by the vibration to the auditory nerve is related to the propagation medium of sound: one of the mediums that humans need to hear sound is the human skull and jaw, and this sound conduction mode is called bone conduction, also called bone conduction. The other medium is air, through which sound is conducted, also known as air conduction.

More specifically, sound travels in the air in the form of waves, which we often call sound waves, which cause the eardrum to vibrate and transmit to the auditory nerve. Two different modes of propagation carry sound to the inner ear, and the ear will have different impressions of 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 be changed. When we listen to our own voice in WeChat or recording, it is equivalent to your voice heard by others, which is the sound of air conduction, not the sound heard through bone conduction.

The sound that everyone hears is the result of a mixture of air conduction and bone conduction, part of the sound is transmitted by air to the ossicles, and some of the sound is transmitted to the skull through the throat and directly vibrated to the inner ear. With this combination, the energy and timbre of the sound are much less attenuated, which will make people feel that their voice is lower and louder, which is different from the sound heard and recorded by others.

There are also people who feel that listening to their own voice in the recording is very difficult, in fact, it is not unpleasant, but because the recording can only be transmitted through the air, which is different from listening to their own voice normally, we are not used to it.