Spacing for microphone elements

Details Spacing for microphone elements Spacing for microphone elements

2008-03-25

2008-03-25

Vo, Huyen X. (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

Application

C704S205000, C704S216000

Reexamination Certificate

active

07349849

ABSTRACT:
A speech recognition device with a frequency range with an upper frequency limit fmaxis provided. The speech recognition device has more than two microphones with distances between the microphones, wherein the greatest common factor of the distances between the microphones is less than the speed of sound divided by fmax. More particularly, where the microphones are spaced a total distance, the number of the more than two microphones is less than the one half the total distance times the upper frequency limit divided by the speed of sound.

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