摘要
为了便捷、高效地对手机音频系统进行优化,这里提出了一种基于手机内核数字信号处理器(DSP)模块的实现新方法,通过软件编程实现多个级联的数字滤波器,对手机原始频率响应曲线中不达标的频段进行滤波,从而优化手机的整个音频系统。在设计滤波器的过程中应用Matlab中的函数进行仿真,可以有效地提高该方法的可靠性。应用该技术的手机通过了专门的手机音频测试,结果表明该方案可操作性强,优化效果显著。
To optimize mobile audio system conveniently and efficiently,this paper describes a digital filter based on DSP module inside the core of the mobile hardware.By implementing cascaded filters and calibrating the original frequency response of the mobile phone,the audio system is optimized.The simulation with Matlab function in the process of filter design indicates that this solution is effective and reliable.The specific mobile audio test of mobile phone shows that the scheme is feasible,and the optimized effect is remarkable.
出处
《通信技术》
2011年第5期122-124,共3页
Communications Technology
