Method for analyzing an acoustical environment and a system...

Details Method for analyzing an acoustical environment and a system... Method for analyzing an acoustical environment and a system...

2005-09-20

2005-09-20

Woo, Stella (Department: 2643)

Electrical audio signal processing systems and devices

Hearing aids, electrical

Directional

C381S092000

Reexamination Certificate

active

06947570

ABSTRACT:
Acoustical signals are registered at two locations to generate two electric signals. Based on the electric signals, the distance from one of the locations to the source of the acoustical signal is calculated to generate a distance signal. The distance signal is amplitude filtered to generate a patterned distance signal. A signal dependent from the electric signal is weighed by the patterned distance signal to generate an output signal representing the acoustical signal from source distributed in an environment within a distance pattern.

REFERENCES:
patent: 5664014 (1997-09-01), Yamaguchi et al.
patent: 6002645 (1999-12-01), Booth
patent: 2001/0031053 (2001-10-01), Feng et al.
patent: 2002/0034310 (2002-03-01), Hou
patent: 0 802 699 (1997-10-01), None
patent: 95 20305 (1995-07-01), None

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