METHOD OF ALIGN WINDOW AVAILABLE TO SAMPLING PEAK FEATURE IN VOICE SIGNAL AND THE SYSTEM THEREOF

摘要

A method and a system for aligning a window capable of extracting a peak feature from a speech signal are provided to identify start and end points of an adaptively transformed window by suggesting a window alignment method using a high order peak concept. Peak information is extracted from an inputted speech signal(210). A peak order is decided by the extracted peak information(220). A window update point is decided by using peak information at the peak order(230). A window is shifted on the basis of the update point and length of the window is decided(240). The window is aligned by a unit of the decided window length(250). Start and end points of the window are detected from the aligned window and window analysis for extracting a feature is performed(260). When the length of the window is decided, the window is started on the basis of a current update point and the window is shifted until next peak information is detected.