Boundary microphone

know a boundary microphone, also known as pressure or PZM microphone Zone, a brand stands for Crown International, a small opening to allow the sound waves of a small diaphragm microphone immediately adjacent to get a hard surface. The sound waves a few millimeters away from a form of hard surface area or pressure boundary layer, interaction between molecules and surface acoustic waves to carry the waves in phase.

This pressure also results in the recording area of the sound changes littlein relation to their distance from the sound source. It also leads to increased sensitivity of the microphone, and an increase in high frequencies. Thus, increased by a small diaphragm microphone necessarily against a hard surface, you get a discrete one, the sensitivity to gather virtually any color phase and little change in sound quality thanks to the direction of it in relation to the sound source you.

In comparison, a conventional microphone singing a very directional pickupPatterns and relatively insensitive, so a singer sings to avoid added directly into the microphone diaphragm for pick-up and sound reflections off-axis coloration.

Boundary microphone is usually a very small condenser microphone built to serve as a surface boundary layer. Using the microphone will often be mounted against a flat surface, like the floor of a stadium or a conference table so that the area works together as a greatboundary layer.

The ability of these microphones pick up sound with little coloration because of the direction of the sound source and there excellent sensitivity make it ideal for various applications. They are often used on the front table of a stage to collect all the actors' voices, or a conference, so that the individual microphones are not necessary to call for participants in a conference.

Another common application is the PercussionInstruments. The microphone is his ability to get the sound from different directions, making it very good for the purchase of a drum kit. This is a frequency response very well made great differences in the sound of percussion instruments like the piano produces. In large part, to become its patent expires boundary microphones are much more common and diverse in recent years. Many manufacturers now produce them in a variety of configurations, making them more frequent and cheaper.