... measurements Real-time frequency analysis in 1/1 and 1/3 octave digital filters Environmental noise measurement and 24 hour monitoring Reverberation time ... : 200 lines on the displaySampling Frequency: 48 kHz, 24 kHz, 12 kHz,6 kHz, 3 kHz, 1.5 kHz.Upper Limit ... Method: index and linearityMeasuring Parameters: Lxyp, Lxyi, Lxeq,1s, Lxeq,T, LAE, E, Cpeak,Tm in every line 26Reverberation time measurement ...