用于低音炮的数字低通滤波器算法实现

摘要

介绍一种音频低通滤波器的嵌入式软件实现方法，先使用 MATLAB 设计符合指标要求的数字低通滤波器，确定滤波器系数；再采用嵌入式软件实现低通滤波器算法。低通滤波器算法实现了设计指标要求，已应用于实际产品。%This paper introduces an embedded‐software implementation method of digital low ‐pass fil‐ter for subwoofer .Firstly ,M ATALAB is used to design digital low‐pass filter and getting the filter coefficients ,then the digital low‐pass filter algorithm is implemented with embedded‐software .The algorithm has achieved primary demand and applied in products .