【摘要】 音调变化在语音识别和语音传输中是一个重要参数。本文介绍的方法克服了二电平法,FFT 法及零交叉函数法等计算量大,不适于微机处理等缺点,性能可靠,大大减化了运算。处理时间约为二电平法的1/50。文中介绍了数据减少法的原理,给出了算法的流程图及部分实验数据。更多还原

【Abstract】 The variation of pitch contour is an important parameter for speech recognition and transmission.This paper reports a new method whichabbreviates the the disadvantage of two level,FFT,and zero-crossing functionalgorithm,namely expansive computation for microcomputer.The newmethod is reliable and consumes computation same as much as 1/50 of thetime consumed by the two level algorithm.The paper describes the theory and flowchart of this algorithm andgives a part of experimetal data.更多还原