Why do you speak in a different voice from what others hear?

Because my mouth sounds forward and my auricle is forward, I listen to my own voice and hear the echo from the opposite side. But also mixed with reverberation of * * * in oral cavity, nasal cavity and brain cavity. Some people have terrible voices, but they often volunteer to sing a song for everyone. That's why their voices are different from others.

Related introduction:

The external sound heard by the human ear is the vibration of the external air, and the information of the sound is transmitted to the auditory nerve through the eardrum, and the processing of the brain forms what we call hearing. The sound we hear when we speak by ourselves is another kind of hearing formed by the skull directly transmitting the vibration of vocal cords from the inside to the auditory nerve, plus the processing of the brain.

Extended data

A way of sound waves entering the inner ear: sound waves directly pass through the skull to make the external lymph fluctuate accordingly, and stimulate the spiral organ of the cochlea to produce hearing. Bone conduction refers to the extension of osteoblast precursor cells from the host bone surface and bone marrow around the implantation bed to the implanted bone surface and its bone cavity through proliferation, generating osteoblasts to form new bone.

Many people can hear their own voices on the tape recorder. Strangely, almost everyone who hears it will say, "This tape recorder is so unreal that it doesn't sound like my voice." In fact, this voice is really your original sound. It is caused by the different propagation channels of sound waves.

Baidu Encyclopedia-Real Voice

Baidu Baidu-bone conduction