Measuring Reverb Time:
1. Select the RT60 function through the Func-
tion menu.
2. Select the “RUN/STOP” icon to allow the
RT60 function to begin. The system will then
calculate the level of background noise (see
image below).
5. Play pink noise through your audio system
(this can be done using the PAA3X’s signal
generator or using an audio test CD). Make
sure that if you’re sending the pink noise
from the PAA3X that the trigger is set to “In-
ternal”. If you’re getting the pink noise from
an external source, the trigger should be set
to “External.” The trigger can be adjusted by
selecting the option below “range” on the
right-hand side of the screen.
6. Move the master fader up to a point where the
audio level received by the PAA3X is greater
than 30 dB over the background noise. This
will trigger the RT60 function. Quickly mute
the system to get your RT60 reading as ac-
curate as possible.
7. After the measurement is taken, the RT60
measurement results will appear on screen.
Users are oered information on minimum
level, maximum level and the decay time
(as displayed below).
8. Like mentioned in previous functions, take a
snapshot of the screen at any time by hitting
the snapshot button. These will be saved to
an inserted FAT-32 formatted micro SD card.
3. After the background noise is detected,
select the “RUN/STOP” icon once again. It
is important that you try to keep background
noise consistent after this point.
4. The PAA3X will wait for a signal greater than
30 dB over the background noise (see image
above). A little helpful hint: the louder the test
signal, the greater the accuracy of your RT60
calculation.
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