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Boundary microphone (Audio-Technica ATM87R) A boundary microphone (or pressure zone microphone) is one or more small omnidirectional or cardioid condenser mic capsule(s) positioned near or flush with a boundary (surface) such as a floor, table, or wall. The capsule(s) is/are typically mounted in a flat plate or housing.
Condenser microphones are also available with two diaphragms that can be electrically connected to provide a range of polar patterns, such as cardioid, omnidirectional, and figure-eight. It is also possible to vary the pattern continuously with some microphones, for example, the Røde NT2000 or CAD M179.
The directionality of the 77-DX is variable. A rotating backshutter on the acoustic labyrinth, controlled by a screwdriver-operated slot at the rear of the microphone, allows the user to vary the microphone's pattern from omnidirectional in the fully closed position, to cardioid, to figure-8 (bidirectional) in the fully open position.
The Shure SM58 is a professional cardioid dynamic microphone, commonly used in live vocal applications. Produced since 1966 by Shure Incorporated , it has built a reputation among musicians for its durability and sound, and is still the industry standard for live vocal performance microphones.
It is known for its almost linear frequency response in the bass range up to 1,000 Hz. Above that, the microphone exhibits a smooth increase in upper mid-range frequencies important for intelligibility. In 1966, Udo Jürgens won the Eurovision Song Contest, singing the song "Merci, Chérie" into an MD 421. By 1971, the contest was almost ...
In 1953, Electro-Voice introduced the Model 647A, a small omnidirectional dynamic microphone fitted with a cord to go around the neck. [5] The body of the 647A was lightweight at 2 ounces (57 g) and relatively small at 0.75 inches (19 mm) in diameter and 3.63 inches (92 mm) in length. [ 6 ]
The ZYLIA ZM-1 [24] is a commercially available microphone capable of generating third-order ambisonic recordings, using 19 omni-directional capsules. The em64 Eigenmike from mh acoustics [25] is a 64-channel spherical microphone array capable of sixth-order capture. The production of the em64 has superseded their previous em32 microphone.
A parabolic microphone is a microphone that uses a parabolic reflector to collect and focus sound waves onto a transducer, in much the same way that a parabolic antenna (e.g. satellite dish) does with radio waves. Though they lack high fidelity, parabolic microphones have great sensitivity to sounds coming from one direction, along the axis of ...
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