基于自适应预滤波的扬声器系统频响均衡方法  

Equalization Method and Implementation of Loudspeaker System Based on Adaptive Pre-filtering Algorithm

作　　者：马登永[1] 柴国强[1] 周建明[1] 杨军[2] 

机构地区：[1]苏州上声电子有限公司,江苏苏州215133 [2]中国科学院声学研究所,北京100190

出　　处：《电声技术》2014年第10期16-18,29,共4页Audio Engineering

摘　　要：为了改善由功率放大器及扬声器单元所组成系统整体的频响缺陷性,提出了基于自适应预滤波的扬声器系统频响均衡方法,利用声源信号和反馈信号通过自适应迭代算法依次计算出级联的预滤波器响应,并通过预滤波器对系统频响缺陷进行实时的补偿处理,以达到逆滤波均衡效果。To improve the frequency response performance of the whole system including the power amplifier and loudspeaker box, the frequency response equalization method and implementation based on adaptive pre - filtering algorithmare presented. Combined the source signal with the feedback signal, the serial pre - filter responses can be calculated in sequence using the adaptive iteration method. The inverse filtering effect can be achieved via the real time system frequency response compensation using the multiple pre - filters.

关 键 词：扬声器系统 非线性失真 自适应预滤波 声源信号 

分 类 号：TN643[电子电信—电路与系统]