VERFAHREN ZUR BESTIMMUNG DES ZEITLICHEN VERLAUFS EINES SPRACHPARAMETERS UND ANORDNUNG ZUR DURCHFUEHRUNG DES VERFAHRENS,申请号DE19863640355-传众专利搜索

VERFAHREN ZUR BESTIMMUNG DES ZEITLICHEN VERLAUFS EINES SPRACHPARAMETERS UND ANORDNUNG ZUR DURCHFUEHRUNG DES VERFAHRENS

申请公布号：DE3640355(A1)

申请号：DE19863640355

申请日期：1986.11.26

申请公布日期：1988.06.09

申请人：

PHILIPS PATENTVERWALTUNG GMBH

发明人：NEY,HERMANN

分类号：G10L25/90;(IPC1-7):G10L5/04

主分类号：G10L25/90

摘要：<p>In a speech or speaker recognition system, a segment or sequence of speech parameter values are smoothed to a most probable sequency by Dynamic Programming. The method for determining the variation with time of a speech parameter is based on a speech signal which is subdivided into successive segments and an individual value exists in each segment and for each value of the parameter within a limited range of values. For the example of the fundamental voice frequency, a value has been generated in each speech segment with the aid of the AMDF (Average Magnitude Difference Function). The required variation now links a sequency of horizontally, vertically or diagonally directly adjacent speech parameter values to one another in such a manner that the sum of the associated individual values represents a minimum. In this arrangement, this sum is slightly magnified in diagonal or vertical sections since a horizontal variation is most probable. This magnification is controlled by certain fixed values which influence the smoothness of the variation.</p>