Genelec Loudspeaker Manager (GLM) 4 - System Operating Manual
page 58 of 87
For AES/EBU digital audio, the channel assignment needs attention. Typically AES/EBU cables
carry two channels of audio, called subframes A and B. In a stereo system the subframe A is
usually assigned to the left channel and the subframe B to the right channel. A multichannel audio
presentation, using more than one digital audio cable, will split the channels into cables. The
correct selection is needed for each monitor and subwoofer.
GLM defaults to the common AES/EBU channel assignments (subframe A is left, B is right).
7.14.6.5
Bass Management
This setting applies the bass management crossover frequency (global) or a customized crossover
frequency (individual). When ‘Bass Man’ button is active on the main page, subwoofer frequencies
are reproduced by the monitors.
For 7360, 7370 and 7380 subwoofer models there is also option to high pass analog outputs 85Hz.
That enables to connect and use analog monitor models, without bass management, to these
models.
7.14.6.6
LFE Channel
For subwoofer there is on option to define if a digital signal carries the LFE content. If there is LFE
channel, it can be selected from the dropdown list (A or B channel). LFE input can be boosted by
+10dB, when this gain is not applied in the audio source.
NOTE: with analogue signal all connected main and LFE inputs are automatically reproduced.
There is no need to configure anything else than LFE +10dB setting.
7.15 Advanced use of AutoCal
AutoCal automatic calibration offers you the possibility of using multiple microphone positions
(MultiPoint) in order to determine the system calibration instead of one microphone position
located, for example, at the main listening position (SinglePoint).
MultiPoint calibration uses up to four spatially averaged microphone positions. The first
microphone position is the primary position. Timing and level are calibrated to the primary
microphone position. Put the microphone first to the primary position.
