... and 1/3 octave digital filters Environmental noise measurement and 24 hour monitoring Reverberation time measurements Airport Noise Monitoring and data ... LAF90, LAF95, LAFmin, SD, LAeq1 s, LAeq, T, LAE, LAFeqT.24 hours monitors menu :And Ld, Ln, Ldn22Real-time spectrum analysisFulfils ... Line Number: 200 lines on the displaySampling Frequency: 48 kHz, 24 kHz, 12 kHz,6 kHz, 3 kHz, 1.5 ...