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Figure 7. Steps in running the AutoCal automatic system
calibration process.
3.10 ALIGNING SUBWOOFER PHASE
The purpose of GLM AutoPhase is to set the subwoofer
phase at the crossover frequency, in relation to a selected
monitor, so that the combined response of the subwoofer-
monitor system is flat across the crossover region. The
steps to run AutoPhase automatic subwoofer phase
calibration include:
1.
Define the monitor to be aligned with the subwoofer
by single clicking on the subwoofer icon first and
then the monitor icon; this is done for each sub-
woofer in the group; if there are several subwoofers
in the group, associate every subwoofer with a moni-
tor before proceeding to the AutoPhase calibration.
The ‘Pair’ text with number will show the paired sub
woofer and monitor.
2.
Connect the calibration microphone to the GLM
adapter, place the microphone at the listening
position, at ear height, and start the AutoPhase
measurement process by clicking on the ‘Start
Calibration’ button. Wait until the AutoPhase
calibration is completed.
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