METHOD FOR DETECTING AND ADJUSTING FALSE IMPULSES IN TRANSMITTING SPEECH USING IMPULSE-CODE MODULATION Russian patent published in 2002 - IPC

Abstract RU 2191434 C2

FIELD: computer-assisted data processing. SUBSTANCE: method involves following succeeding high level double jumps in speech signal at the first derivative level, measuring mean module of signal first derivative on this segment by accumulating modules of two neighboring impulse-code modulation reference signals difference and setting two equal adaptive thresholds of different sign in proportional relation to the first derivative mean module, detecting code combination containing false bit, increasing relative level of two adaptive thresholds at the speech pause moments and correcting the error response signal by changing it for the previous non-distorted reference. EFFECT: high quality in receiving speech signals. 1 dwg

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RU 2 191 434 C2

Authors

Brajnina I.S.

Dates

2002-10-20Published

2000-06-23Filed