11/8/00 RTA (optional) 10-41
Rooms HTL
The “Rooms HTL” display is only
available when 1/3 octave filters are
selected.
The
Rooms HTL
display calculates the Hearing Threshold
Level for the spectrum being displayed when “Rooms” is
chosen from any spectrum’s check menu.
The “HTL status” indicator can show the following:
•
Pass
- indicates the recording environment is suitable to
produce recordings without audible background noise
•
Fail
- indicates the recording environment is NOT suit-
able to produce recordings without audible background
noise
Display label
Level in dB of selected filter
Selected filter frequency
HTL status
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