Thank you , Emmett.
I’ve checked the content of the link. it’s the formula of rms, i.e. the method of total rms power in audition, however, what I want is the average rms power.
I’ve tried many times yesterday by adjusting the moving size of window and verified it with several voice files, the max difference is less than 0.5dB between my results and those of average rms power in audition. So I think I’ve solve the problem.
Lily