The filter in the DAC of audio processing

摘要：

This paper designs a kind of filters used in audio processing of the DAC. Through the study of FIR filter parameters, this paper completed the oversampling of the audio filter, so that over-sampling rate acheves 128 times. It also use the analysis tools in MATLAB fdatool to design filter.From the simulation waveform of it ,the noise of signal ratio is achieved more than lOOdB, and it can better suppress pass-band noise.

关键词： audio signal E-ADAC interpolated filter MATLAB

作者: SongYu Lihua

作者单位: Changchun University of Technology, Computer Science and Engineering Institute Changchun,China

会议类型: 国际会议

会议名称: 2010 International Conference on Computer,Mechatronics,Control and Electronic Engineering(2010计算机、机电、控制与电子工程国际会议 CMCE 2010)

会议地点: 长春

会议语种:英文

页码: 53-55

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）