DeltaOHM HD2010UC/A, Руководство по эксплуатации

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HD2010UC/A
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V4.1
Reverberation time – Analysis of the results
At the end of the measurement, as indicated above, the results are supplied in a table or graphically.
Parameters
Pressing the right arrow on the display keyboard corresponding to the VIEW key brings the table up
onto the screen.
From top to bottom are shown the maximum octave band level reached by the noise source
(LO max), the octave band background noise level (LO res), the first decay time EDT and the three
estimations of the reverberation time T
10
, T
20
and T
30
each with the correlation coefficient “r”.
The results of the measurement refer to the variable indicated in the first two lines of the table
(LOmax and LOres in the picture above). To display another variable press the SELECT button: the
current variable starts blinking. Using the arrows select the new variable from those available:
•
LO: sound pressure level in octave bands from 125Hz to 8KHz
•
LTO: sound pressure level in third octave bands from 100Hz to 10KHz (if third octave op-
tion is installed).
Pressing the right arrow it’s possible to select the central frequency of the filter allowing to modify
their value. Pressing the left arrow returns to the selection of the parameter to be displayed.