Application Principle Of Noise Reduction Earphones And Applicable Groups

Noise reduction earphones adopt active noise control, which is different from the passive sound insulation of general earphones.

The principle is:

1. First, the signal microphone installed in the earphone detects the low-frequency noise (100-1000HZ) in the environment that can be heard by the ear.

2. Transmit the noise signal to the control circuit for real-time operation.

3. Play the sound wave with the same amplitude and the opposite phase to the noise through the hi fi speaker to cancel the noise.

4. After superposition, the noise disappears and can't be heard.

Applicable groups:

1. Business people first.

Due to frequent business trips, especially the business people who commute between different cities every day, they must hate the noise in the cabin. If there is a noise reduction headset, they will be able to stay away from the noise and relax by listening to music.

2. Next is the subway people.

Office workers who squeeze into the subway every day may be used to the noise in the subway. However, if you can have a pair of noise reduction headphones at this time, you can not only keep away from the noise, but also adjust your mood through the headphones and enjoy the process happily.

3. Office workers also need a pair of noise reduction headphones.

Sometimes when I think about the planning scheme, I am particularly upset to hear the sound of the central air conditioning operation. At this time, it is even more annoying if there are colleagues around me who keep whispering. At this time, you may as well put on a pair of noise reduction headphones to expand your ideas in the beautiful music.