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使用现有的最标准的硬件模块已研制成功一种轻便的微计算机音频信号合成/分析系统。信号处理方案采用软件数字技术来完成,从而提高了可靠性和适应性。加权窗的特别选取,快速付里叶变换及平均技术等都对测试提供了极好的精度,甚至当输入受到频移和调幅影响时(就象磁带录音机中通常碰到的那样)也有极好的精度。
A lightweight microcomputer audio signal synthesis / analysis system has been developed using the most current available hardware modules. Signal processing solutions using software digital technology to complete, thereby enhancing the reliability and adaptability. The special selection of weighted windows, fast Fourier transform and averaging techniques all provide excellent accuracy for testing, and are excellent even when the input is affected by frequency shifts and amplitude modulations (as commonly encountered in tape recorders) The accuracy.