描述
A dual directional microphone, also known as an 8-shaped microphone or differential pressure microphone, is an audio device with special directional characteristics.
The characteristic of this type of microphone is that its diaphragm is exposed to the air before and after (i.e. in the 0 degree and 180 degree axis directions), and is in an open state to the outside world.
Therefore, the force that causes the microphone diaphragm to vibrate comes from the difference in force between the front and back of the diaphragm, rather than solely from the pressure on the front of the diaphragm.
The main feature of a dual directional microphone is to pick up sound from the front and back, but not from the side of the microphone (90 degree angle).
This design makes the dual directional microphone perform well in capturing sound signals from two directions, making it particularly suitable for situations that require simultaneous reception of sound from different directions.
In the field of security monitoring, dual directional microphones are commonly used in dual microphone pickups, in conjunction with surveillance cameras, to enhance audio capture effects.
By using a dual microphone pickup, monitoring personnel can hear what is happening in the image more clearly, thereby improving the accuracy and effectiveness of monitoring.
In addition, dual microphone pickups are widely used in monitoring systems in public places such as banks, shops, schools, stations, airports, etc., to capture sound information and enhance security measures.
The characteristic of this type of microphone is that its diaphragm is exposed to the air before and after (i.e. in the 0 degree and 180 degree axis directions), and is in an open state to the outside world.
Therefore, the force that causes the microphone diaphragm to vibrate comes from the difference in force between the front and back of the diaphragm, rather than solely from the pressure on the front of the diaphragm.
The main feature of a dual directional microphone is to pick up sound from the front and back, but not from the side of the microphone (90 degree angle).
This design makes the dual directional microphone perform well in capturing sound signals from two directions, making it particularly suitable for situations that require simultaneous reception of sound from different directions.
In the field of security monitoring, dual directional microphones are commonly used in dual microphone pickups, in conjunction with surveillance cameras, to enhance audio capture effects.
By using a dual microphone pickup, monitoring personnel can hear what is happening in the image more clearly, thereby improving the accuracy and effectiveness of monitoring.
In addition, dual microphone pickups are widely used in monitoring systems in public places such as banks, shops, schools, stations, airports, etc., to capture sound information and enhance security measures.
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