基于移动终端设备的数字音效均衡器的实现  

Implement of Digital Audio Equalizer Based on Mobile Terminal Devices

作　　者：刘华平 

机构地区：[1]上海视龙软件有限公司音频研发部,上海200120

出　　处：《电声技术》2012年第12期57-58,64,共3页Audio Engineering

摘　　要：随着移动终端设备CPU处理能力越来越强大,音频特效处理现在大部分都由专业的芯片实现转成软件模块实现,这样有利于设备的成本控制和音频特效多样化的实现。在分析了常见音乐风格在频域上的不同特点的基础上,针对移动终端设备的应用特性,设计了符合移动终端设备的数字音效均衡器,分别实现了POP,LIVE,JAZZ,ROCK,CLASSICAL Music数字音效均衡效果算法,并将算法移植到基于ARM Core Android OS智能手机平台上。With the power of mobile terminal device CPU more and more powerful, digital audio effects processing is imple- mented by software module instead of professional SOC ,which can greatly control the cost of device and realize digital audio effect diversification. Aiming at the application characteristics of mobile terminal device,five digital EQ function algorithms are designed based on the feature of different music styles on frequency, and then these algorithms are applied to smartphone devices based on ARM Core and Android OS.

关 键 词：数字均衡器 移动终端 音频特效 数字滤波器 

分 类 号：TN912[电子电信—通信与信息系统]