The biggest problem with bone conduction headphones is hearing. Because of the different internal structure and wearing methods, the sound of bone conduction headphones is much smaller than that of traditional headphones. For people who are used to listening to songs at high volume, they can only turn the volume up to the maximum, but at this time, the headphones will leak and people around them can hear clearly what songs they are listening to.

2. Sound quality problems

The low frequency is almost imperceptible, and the middle frequency and high frequency are not obvious, but the clarity of the sound is good compared with the weak low frequency. In addition, when the vibration module of the earphone is close to the ear, the sound quality will be better, but on the whole, the bone conduction earphone can not be compared with the traditional earphone in sound quality.

principle of operation

Under normal circumstances, sound waves enter the inner ear through air conduction and bone conduction, and then the lymph inside and outside the inner ear vibrates, and the spiral device completes the sound perception process, and then the auditory nerve generates nerve impulses and presents them to the auditory pathway. After comprehensive analysis of the cerebral cortex, the sound was finally "heard".

There are two ways of bone conduction: moving and squeezing, which together stimulate the spiral organ to cause hearing. The specific conduction pathway is: sound wave-skull-bone labyrinth-inner ear lymph-spiral organ-auditory nerve-cerebral cortex auditory pathway.

Usually, people don't need to use the skull to feel the sound, but when the lesions of the outer ear and middle ear hinder the sound wave propagation, bone conduction can be used to make up for the hearing. Such as bone conduction hearing aid, bone conduction earphone, etc. Use bone conduction to feel sound.