PRELIMINARY
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32
4.10.2
Bass management
You can synthesize a subwoofer signal from the speaker inputs. The next diagram shows the signal flow and
processing overlaid on the signal flow diagram from Figure 5. The Bass Management processing applies high
pass filters for the signal sent to Dirac Live and then to the speakers. In addition, it applies low pass filters and
sums these signals to generate
the “Bass Mgt” signal. In Routing, this is sent to the subwoofer channel
for Dirac
Live correction.
To use this configuration, do a Dirac Live calibration first on the speaker and subwoofer channels. Then set up
the Inputs & Bass Mgt tab with the high pass and low pass filters for the subwoofer crossover. For example:
On the Routing screen, route the Bass Mgt signal to the Dirac channel that will be used for the subwoofer, as
illustrated here assuming channel 3 (some rows are left out):
You should perform acoustic measurements to check and fine-tune your subwoofer crossover settings, to
ensure a smooth response through the crossover. You may need to adjust the filter type, frequency or slope to
get the best integration. After you have set up the plugin, save your configuration to a file.
