Firstly, Fourier transform is applied to the sampled signal to calculate the power spectrum or amplitude spectrum, and then the average value of the data within the bandwidth of each center frequency is calculated by using the power spectrum or amplitude spectrum data.

Filename	Size	Update
三分之一倍频程谱.asv	1181	2007-11-24
三分之一倍频程谱.m	1183	2007-11-24

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