一种改进的扬声器异常音快速检测方法  

An Improved Method for Rapid Detection of Abnormal Sound of Speakers

作　　者：薛燕[1] 冯海泓[1] 胡晓城[1] 

机构地区：[1]中国科学院声学研究所嘉兴工程中心,浙江嘉兴314000

出　　处：《电声技术》2015年第10期43-46,共4页Audio Engineering

摘　　要：提出了一种基于信号微分预处理PEAQ算法的扬声器异常音检测方法。该方法首先对激励扬声器声的响应信号进行微分预处理,通过基频归一化获取增强的异常音失真信号,最后通过计算高阶次谐波失真来判断该扬声器是否存在异常音。实践证明:改进后的扬声器"异常音(Rub&Buzz)"快速检测算法优于原始计算高阶次谐波失真算法,并且稳定性更好。In this paper, a new method for the detection of abnormal sound is proposed based on the PEAQ algorithm. The method is firstly used to make a differential preprocessing of the response signal of the acoustic signal. The practice shows that the improved speaker＂ abnormal sound （Rub ＆ Buzz）＂ fast detection algorithm is better than the original algorithm, as well as the stability.

关 键 词：扬声器异常音 高阶谐波失真 PEAQ 

分 类 号：TN643[电子电信—电路与系统]