Genelec Loudspeaker Manager (GLM) 4 - System Operating Manual page 80 of 87
11.3 How to compare a calibrated and uncalibrated SAM system?
A) Using the Autocal Bypass button located on the main page. One can evaluate the benefits of
using AutoCal calibration. When the Bypass button is active, all AutoCal optimized acoustic
settings are bypassed.
The influence you hear during bypass is complex because all these settings are temporarily set to
default values where they have no effect
equalization to reduce and remove room colorations
level calibration for the listening position
time-of-flight compensations for the differences in monitor distances to the listening position
system delay compensation (system delay is an additional delay applied to all monitors and
subwoofers)
B) After a Group has been calibrated and the calibration has been confirmed, the acoustic settings
are set for the Group and stored in a setup file.
An uncalibrated Group can be created as follows: select a calibrated Group, then use the menu
item ‘Group | Add Group’ and select ‘Confirm Group’. Then click ‘Skip Calibration’. This operation
retains the Group configuration but clears all the acoustic settings and restore the factory settings.
11.4 How to calibrate SAM systems for different listening positions?
Groups can be used to calibrate SAM systems for different listening positions (sweet spots). First,
create a group and calibrate it to the first listening position. Then, choose this group and choose
menu command ‘Group | Add Group’. Name the new group and make the necessary edits to it and
click the ‘Confirm Group’ button. Next, place the Genelec calibration microphone at the second
listening position and run calibration by double-clicking on the measurement microphone icon.
After both groups are created and calibrated, the location-specific calibration for each listening
position can easily be selected by selecting the corresponding group tab in the main GLM window.
11.5 Can analog and digital signal sources be mixed?
Yes and no. One type of signal can be used in one group. However, it is easy to create two groups,
one for analog input and another for digital audio input. After this, switching from one group to the
other will select the input signal type.
11.6 How to switch between analog and digital signal?
Groups can be defined to select analog or digital input signal. Both types of signals can be
connected to Genelec SAM monitors.
The group definition contains the selection of analog or digital audio input signals. The selection
applies to all monitors and subwoofers in the group.
Note that a digital signal cable carries typically two channels of audio. For this reason, the channel
to be reproduced needs to be selected for each SAM monitor by selecting the subframe A or B.
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