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Typically, an array is made up of omnidirectional microphones, directional microphones, or a mix of omnidirectional and directional microphones distributed about the perimeter of a space, linked to a computer that records and interprets the results into a coherent form. Arrays may also be formed using numbers of very closely spaced microphones.
The boundary microphone can be used as a piano mic by placing it inside the piano lid, an approach which can obtain better pickup of the piano's mix of sharp percussive transients and gentle undertones than other microphone options. Boundary mics are used on hockey boards for body check sound effects. They are also commonly used to record full ...
An omnidirectional (or nondirectional) microphone's response is generally considered to be a perfect sphere in three dimensions. In the real world, this is not the case. As with directional microphones, the polar pattern for an "omnidirectional" microphone is a function of frequency.
Example of microphone positioning in a Decca Tree setup. A Decca Tree setup uses three omnidirectional microphones arranged in a "T" pattern outlining a triangle, often equilateral; the center microphone is mixed with the two spaced microphones to fill the "hole in the middle" in their imaging; it points the sound source.
Omnidirectional treadmill, a treadmill that allows a person to walk in any direction without moving Omnidirectional microphone , a microphone that can hear from all directions Mecanum wheel , a specially designed wheel that allows movement in any direction, such as that used by many robots in the RoboCup Small Size League
Proximity effect can be viewed in two ways. In some settings, sound engineers may view it as undesirable, and so the type of microphone or microphone practice may be chosen in order to reduce the proximity effect. On the other hand, some microphone users seek to intentionally use the proximity effect, such as beat boxing singers in hip hop music.
The ZYLIA ZM-1 [23] is a commercially available microphone capable of generating third-order ambisonic recordings, using 19 omni-directional capsules. The em64 Eigenmike from mh acoustics [24] is a 64-channel spherical microphone array capable of sixth-order capture. The production of the em64 has superseded their previous em32 microphone.
External microphone designs have the microphone housed in the front end of the microphone arm. Voicetube designs are also called internal microphone design, and have the microphone housed near the earpiece, with a tube carrying sound to the microphone. Most external microphone designs are of either omnidirectional or noise-canceling type.