Device and method for noise suppression

Details Device and method for noise suppression Device and method for noise suppression

2011-04-19

2011-04-19

Abebe, Daniel D (Department: 2626)

Data processing: speech signal processing, linguistics, language

Speech signal processing

For storage or transmission

C704S226000, C381S317000, C381S324000, C330S284000

Reexamination Certificate

active

07930174

ABSTRACT:
An analog signal is sampled to provide a digitized signal and the resultant digitized signal is output to a delay element, which provides a delayed digital signal. The analog signal is also input to an analog noise detector, which provides a noise detector output signal to a digital logic unit. The digital logic unit processes the noise detector output signal to determine if noise is present in the analog signal, and provides a control signal. An amplifier receives the delayed digital signal and reduces a gain applied to the delayed digital signal in response to the control signal, and provides an amplifier output signal.

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