Technology

HOMETechnology

Bone conduction is

that another way to hear.

Two ways which sound is delivered.

Generally, human hears sounds through two paths.

The two paths are Air Conduction and Bone Conduction.

01

Typical path, the "Air Conduction" method.
External sounds pass through the human canal to create vibrations, which are transmitted through the auditory ossicle to the cochlea and through the auditory nerve to the brain.

02

Another path, the “Bone Conduction” method.
External sounds do not go through the eardrum, but directly through the temple or skull to the cochlea, and through the auditory nerve to the brain.

Representative case of bone conduction.

We listen to our voice based on the bone conduction principle.
Even if you cover your ears, you can hear your voice, which is based on the bone conduction principle.
Why doesn’t a recording of my voice sound like me when I hear it?
Your own recorded voice is how other people hear you. The reason for this is that when you speak, only about 80% of the voice you hear comes from your mouth, and about 20% of the voice that you hear is actually conducted through your bones to your ear.
This explains why a recording of your voice sounds different to what you experience and shows that bone conduction is not as foreign to you as you may think.
How did Beethoven, who was deaf, hear?
In his later years of hearing impairment, Beethoven is said to have listened to the piano with a stick in his teeth, which is based on the bone conduction principle.

Concept of Bone Conduction Transducer.

Transducer which converts electrical signal into vibration signal and produces sound.

In typical air-conductor type speakers, the diaphragm vibrates when an electric current is applied, causing the air waves to generate sound.

In contrast, bone conduction transducer generates vibrations, which makes the sound we can hear.

The location where you can hear the bone conduction sound the most effectively is shown in the picture on the right, and the optimal location is near the temple.

Differentiation of the Timbre Bone Conduction Transducer.

Bone Conduction Transducer boasts the industry's highest performance.

Realizing miniaturization and light weight, bone conduction transducer has relatively low output and wide frequency band, and unique sound quality tuning technology provides clean and balanced sound quality.

This distinction is not limited to headphone applications, but can also be deployed in a variety of new IT applications, helping to ensure that the performance of those applications is achieved.

Benefits of Bone Conduction Headphone.

Eardrum and ear health protection.

Using bone conduction headphones can at least prevent damage to your eardrum.

Awareness of surrounding situation.

The headphones don't block your ears so you can recognize the sounds around you and respond quickly to dangerous situations when you're outside.
You don't have to take off your headphones to talk to the people around you.
It does not cause discomfort such as ringing of the ears, dullness of the ears, tickling of the ears, occurrence of earwax and ear dampness and stuffiness.

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