摘要
应用快速傅里叶变换（ＦＦＴ）算法对频谱进行分析，从而实现在计算机中对音频信号失真度的直接测量．本文还着重分析了失真度误差的来源，并在大量实验的基础上。
sing FFT (Fast Fourier Transform) algorithm to analyze the frequency spectrum, the direct measurement of the distortion of audio signals has been implemented in a computer. Moreover, the source of the measurement errors is discussed. Based on a great number of experiments, a solution for minimizing the errors is set up.
出处
《科技通报》
1998年第4期270-275,共6页
Bulletin of Science and Technology
关键词
傅里叶变换
音频信号
失真度
测量
误差
广播
FFT, Computer, Distortion of audio signals, Measurement, Errors
