Microphone array

related topics
{system, computer, user}
{math, number, function}
{math, energy, light}

A microphone array is any number of microphones operating in tandem. There are many applications:

Typically, an array is made up of omnidirectional 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. Given a fixed physical relationship in space between the different individual microphone transducer array elements, simultaneous DSP ( Digital signal processor ) processing of the signals from each of the individual microphone array elements can create one or more "virtual" microphones. Different algorithms permit the creation of virtual microphones with extremely complex virtual polar patterns and even the possibility to steer the individual lobes of the virtual microphones patterns so as to home-in-on, or to reject, particular sources of sound.

An array of 1020 microphones[1], the largest in the world, was built by researchers at the MIT Computer Science and Artificial Intelligence Laboratory.

Windows Vista computer operating system has built-in support for microphone arrays for increasing the accuracy of its speech recognition feature, letting users connect multiple microphones to a single system, so that the inputs can be combined into a single, higher-quality source.[citation needed]

Soundfield microphone

The Soundfield microphone system is a well established example of the use of a microphone array in professional sound recording.

See also

External links

Full article ▸

related documents
Intel 80186
Vertical interval timecode
GEGL
Reduced-carrier transmission
IBM System p
Intel 8008
MOS Technology 6510
Fractal transform
ICab
Inter-process communication
Session Description Protocol
Interior Gateway Routing Protocol
EDVAC
Transatlantic telephone cable
Low-power communication device
Intel 80486DX2
Risc PC
Fiber distributed data interface
Fsck
Transceiver
Freescale DragonBall
Carrier sense multiple access with collision detection
Television receive-only
Edlin
Double-sideband suppressed-carrier transmission
Wikipedia:Federal Standard 1037C terms/computer hardware terms
Pine (e-mail client)
Round-trip delay time
Mouse gesture
Information technology