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4 - Using the ARC 2 Measurement
4.4 STEP 2 - Set up your Audio I/O
Select your audio hardware here, and choose which channels to use for
speaker outputs and the microphone input (figure 4.3).
figure 4.3
Audio Hardware: click this menu to select the audio interface you are using
for the measurement process. ASIO-compatible interfaces will be listed in
Windows, and CoreAudio-compatible interfaces will be listed in Mac OS X.
OUTPUT L: click this menu to select the audio interface output that is con-
nected to the LEFT speaker, for example, "Output 1."
OUTPUT R: click this menu to select the audio interface output that is con-
nected to the RIGHT speaker, for example, "Output 2."
Microphone INPUT: click this menu to select the audio interface input where
the ARC 2 Measurement Microphone is connected. Remember to set the Gain
at the middle position now, and turn on +48V phantom power supply).
ASIO Panel: this button only appears in Windows where ASIO drivers are used.
IMPORTANT NOTE: considering that the measurement process must be done at 48
kHz, the ARC 2 Measurement software must set your audio interface sampling rate
at 48 kHz. For this reason, please check your audio interface that the sampling rate
is not locked and that 48 kHz is supported and allowed.
ARC 2 Measurement will try to set the sampling rate to 48 kHz as soon you select
your audio interface. If the audio interface cannot be set at 48 kHz, an alert mes-
sage will notify you that the room measurements cannot be taken.
Click NEXT once the Interface, Outputs and Microphone Input are all correctly
selected.
ARC System 2
25
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