VOICE SIGNAL DETECTION SYSTEM AND METHOD

摘要

PROBLEM TO BE SOLVED: To provide a voice signal detection system and method for detecting a voice signal using peak information of a time axis. SOLUTION: The voice signal detection system includes: a peak extractor for extracting peaks from an input signal; a peak detector for comparing a voltage level of each of the extracted peaks to a prescribed threshold voltage level and converting the comparison result to a binary sequence; a micro event detector for determining the length of a test window to examine the converted binary sequence and detecting micro events in a test window length unit; a micro event link module for linking the detected micro events; and a voice signal starting and end point detector for determining a starting and an ending point of a voice signal by detecting a starting and ending point of the linked micro events. COPYRIGHT: (C)2007,JPO&INPIT