摘要
本系统利用DFT法对音频信号进行频谱分析,应用S3C44B0X芯片作为系统的核心,再配以采样保持、程控放大等功能模块,构成了一个音频信号分析仪。频谱测量频率范围为100Hz-10KHz,频谱分辨率达到20HZ。
This system use DFT technics to analyse audio frequency. The System use S3C44BOX as the kernel, and also with sampling module, programable amplifier module etc to composing an audio frequency analyzer. It＇s spectrum range from 1000Hz-10KHz, distinguish efficiency attain 20HZ.
出处
《科技广场》
2007年第9期215-216,共2页
Science Mosaic
