... selectedAuto-start and auto-endUSES Precision acoustics measurements Real-time frequency analysis in 1/1 and 1/3 octave digital filters ... ,T, LAE, E, Cpeak, TmNote: fm is center frequency; X is frequency weighting A, C, Z. Y is time weighting F, S, I23Real ... OCT spectrum analysis software for noise (S6291 -00303)Filters Center Frequency: 10 Hz~20 kHz25FFT analysis functionFFT analysis software for noise ...