Microphone array for preserving soundfield perceptual cues

Details Microphone array for preserving soundfield perceptual cues Microphone array for preserving soundfield perceptual cues

2006-12-12

2006-12-12

Woo, Stella (Department: 2614)

Electrical audio signal processing systems and devices

Directive circuits for microphones

C381S026000

Reexamination Certificate

active

07149315

ABSTRACT:
A sound-capturing arrangement uses a set of directional microphones that lie approximately on a sphere having a diameter of 0.9 ms sound travel, which approximates the inter-aural time delay. Advantageously, one directional microphone points upward, one directional microphone points downward, and the odd number of microphones are arranged relatively evenly in the horizontal plane. On one embodiment, the signals from the microphones that point upward and downward are combined with the signals of the horizontal microphones before the signals of the horizontal microphones are transmitted or recorded.

REFERENCES:
patent: 5260920 (1993-11-01), Ide et al.
patent: 5600727 (1997-02-01), Sibbald et al.
patent: 5666425 (1997-09-01), Sibbald et al.
patent: 6118875 (2000-09-01), Moller et al.
patent: RE38350 (2003-12-01), Godfrey

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