BUILDING YOUR SYSTEM WITH MULTIPLE VOR-
an echo canceller reference on the EF Bus. For each additional unit, assign the echo canceller reference to use the EF Bus Reference.
For systems with more than one room, you will need to use the W, X, Y, or Z sub- busses to share the echo canceller reference in your additional rooms if the EF Bus Reference has already been assigned to the EF Bus.
AUTOMIXER SETTINGS FOR MULTIPLE VORTEXES
When using more than one Vortex in your room system, you have several possibilities for how you configure the automixer. Each Vortex can operate as one of the follow- ing:
•One automixer, independent of other Vortexes linked to it
•Two automixers, independent of other Vortexes linked to it
•One large automixer, sharing automixer functions with other Vortexes linked to it
•Two large automixers, sharing automixer functions with other Vortexes linked to it
Figure 2. Vortex Automixer Global Parameters in Conference Composer Software
Automixer and Bus Mixer Settings
Operating as an
Independent
Automixer
To operate the Vortex in any of the above possibilites, two global parameters need to be changed: the AUTOMIXER and the BUS MIXER (see Figure 2). The AUTOMIXER parameter chooses which automixer the input channel will be on (this is changed either on the AUTOMIXER page in Conference Composer or on the MATRIX MIXER page).
The BUS MIXER parameter is used to assign one of the two internal automixers to one of the eight EF Bus automixer groups. For example, consider three Vortexes each of which has four microphones assigned to Automixer 1 and 4 microphones assigned to Automixer 2. Now, if each of these Vortexes sets their Automixer 1 to have Bus Mixer 5 (the Bus Mixer is also referred to as the Bus ID), then the three automixers (one from each Vortex) will work as a single automixer containing 12 (3 x 4) micro- phones. Setting BUS MIXER to 0 means that the automixer is not grouped on the EF Bus.
To set the Vortex to operate as an independent automixer (or two independent mix- ers), set the BUS MIXER parameter to 0, or to a number that is different from any other automixer group currently in use on the EF Bus.
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