Automatic Room Eq - SABINE Power-Q Operating Information Manual

When the POWER-Q detects an audio signal at its input(s), page 4 of the Automatic Room EQ menu will
indicate that the POWER-Q is testing the reference microphone for the presence of signal (a 1 KHz tone)
and calibrating the POWER-Q to the reference level heard by the microphone.
If a weak signal (or no signal) is detected at the reference microphone input, the POWER-Q will prompt
you with Page 5:
Note that this INSUFFICIENT LEVEL message refers to the audio detected by the reference microphone,
NOT the signal present at the channel inputs of the POWER-Q Make sure you are using a working
microphone plugged into the "REF A" input on the back of the POWER-Q with a correctly wired cable. If
you are using a reference mic that requires phantom power, turn on the phantom power in the "GLOBAL
PARAMETERS" section, accessed from the MAIN MENU. If all else fails, try moving the microphone. It's
possible your position may not permit the microphone to "hear" the 1kHz tone due to phase cancellation.
In rare instances (e.g., extremely loud conditions) it's possible that the signal heard at the reference mic
input might be too "hot", which will produce an alternative error message:
You may need to put a pad on the microphone or at the POWER-Q input (via Global Parameters). Alter-
natively, try placing the microphone a further distance from the speakers.
Once your reference microphone is plugged in, positioned correctly and working, the Automatic Room EQ
analysis will begin, as indicated by page 6 of the menu.
The POWER-Q plays a burst of pink noise for a few seconds, measures energy per octave as heard at the
reference mic input, and performs thousands of calculations to adjust its graphic EQ filters to make this
response as flat as possible. The entire process will take about 10 seconds per channel. Then page 6
screen will indicate the POWER-Q channel being analyzed.