The working principle and advantages and disadvantages of bone conduction headphones

What is the working principle of a bone-conduction Bluetooth headset?

liquidsThe medium of sound transmission includes solids, liquids, and air, and in general, sound waves are transmitted into the human inner ear in two ways: air conduction and bone conduction. Air conduction is what we know as sound waves passing through the ear and the outer ear canal to the middle ear, and then through the hearing bone chain to the inner ear. Bone conduction, on the other hand, is the transmission of sound waves to the inner ear through the vibration of the skull, collarbone, and other bones in the head.

Bone conduction is another very important way of hearing, apart from the airborne transmission. People have used this method to create many bone-conduction hearing devices. While conventional headphones transmit sound mainly through the air, bone-conduction headphones transmit sound with the help of the skull. Ultimately, the sound is transmitted directly to the auditory nerve in the form of sou'skullnd waves, instead of being transmitted through the air to the eardrum first and then to our auditory nerve.

Currently, there are two main types of bone-conduction hearing devices: electromagnetic bone-conduction headphones and piezoelectric bone-conduction headphones. Electromagnetic bone conduction headphones work better, but electromagnetic bone conduction headphones have electromagnetic radiation, easy to cause harm to the user's body. Piezoelectric bone conduction headset with a piezoelectric oscillator as the sound element, in the process of wearing the human body by electromagnetic radiation, is low and has a small size, low power consumption, and other advantages.

The advantages of bone conduction Bluetooth headset

1. The principle of the bone conduction headset determines the bone conduction Bluetooth headset does not have to pass through the ear canal to transmit sound. It does not need to cover the ears or block the ear canal to achieve the purpose of listening to the sound, so "open ear listening" has become one of the most praised advantages of bone conduction headphones. These advantages play a big role in the sports scene. For example, when you use bone conduction headphones to listen to music, but also able to hear the sound of your surroundings.

2. Because bone-conduction sports headphones do not need to use in both ears, so it also brings some health benefits. Because bone conduction headphones do not require earbuds to be placed in the human ear, they can keep the inside of the ear canal clean and hygienic. At the same time, the surface of bone-conduction headphones is smooth and easy to clean. And traditional air-conduction headphones are easy to deposit bacteria inside, so bone-conduction headphones also have a great help to the health of the ear.

3. In our sports, listening to songs can effectively relax the body and mind, to achieve a better sports effect. But ordinary wired headphones in the movement will be friction collision sound through the headphone cable to the ear, which is often referred to as the "stethoscope effect". Bone conduction headphones to avoid this problem can give people a better sports music environment. Of course, if you want to completely get rid of the "stethoscope sound" interference, true wireless Bluetooth headphones are the most ideal choice.

The disadvantages of bone conduction headphones

1. Bone conduction headphones have always been the main positioning is "sports headphones". This not only explains its advantages in the sports scene, on the other hand, also explains the sound quality of bone conduction headphones can not reach the level of daily listening headphones (the same price). For example, bone conduction bass deficiency, sound leakage, and other problems still exist. In addition, and the same price compared to wired headphones, bone conduction headphones also do not have the price advantage. So people will only use bone conduction headphones in specific scenarios like sports.

2. If there is a common problem with bone conduction Bluetooth headphones, it is the problem of sound leakage. Although the major manufacturers are trying to improve the bone conduction headset in the lack of sound leakage, from the current situation of the actual bone conduction headset, the phenomenon of sound leakage still exists in the bone conduction headset. But the sound leakage has been significantly improved compared to the previous situation, in a quiet environment to listen to the occasional song is not bad.

3. In the process of movement, because bone conduction headphones need vibration waves to sound, the wearing experience will have a certain impact, and this is also the principle of bone conduction headphones themselves caused by some shortcomings.