基于安卓系统的均衡器算法的仿真及应用  

Simulation and application of equalizer algorithm based on Android

作　　者：林金阳[1] 庄伟达 LIN Jinyang;ZHUANG Weida(Research Center for Microelectronics Technology, Fujian University of Technology, Fuzhou 350118, China)

机构地区：[1]福建工程学院微电子技术研究中心,福建福州350118

出　　处：《福建工程学院学报》2020年第6期583-586,共4页Journal of Fujian University of Technology

基　　金：平板显示国家地方联合工程实验室开放基金项目(KF1802,GY-Z18038)。

摘　　要：针对安卓系统原生Audio Effect框架不支持32 bit音频的问题,提出了采用FFmpeg开源音视频框架自定义新的Audio Effect框架。选用高阶音频参数多波段均衡器算法的巴特沃斯部分作为滤波,对该算法进行分析、验证和应用测试。仿真和测试结果显示,该方法可以提高均衡准确性,达到设计要求。In response to the problem that native Audio Effect framework of the Android system does not support 32-bit audio,a new Audio Effect framework was proposed by using the FFmpeg open source audio and video framework.The Butterworth part of its high-order audio parameter multi-band equalizer algorithm was used as the filter,and the algorithm was analyzed,verified and tested in application.Simulation and test results show that this method can improve the accuracy of equalizer and meet the design requirements.

关 键 词：安卓 Audio Effect框架 FFmpeg音频均衡器 应用层开发 

分 类 号：TP37[自动化与计算机技术—计算机系统结构]