15
Figure 14. Volume up and down macros.
VOLUME CONTROL (CODEC AND TELEPHONE)
If the Vortex Device to be controlled has a built in telephone hybrid (such as the Vortex EF2241) or
if the Vortex Device is linked via the EFBus to another Vortex Device that does have a built in
telephone hybrid, the Volume Up / Down buttons of the VSX 8000 remote control can also control
that volume.
Here is an example of how to write a Volume Control Macro for a system that has the VSX 8000
connected to Input A of a Vortex Device and a built-in telephone hybrid on Input T. Inside the
Vortex Device, Input A and Input T are routed to Output B and to the reference R1. The Macros
should control the cross-point gains for Inputs A and T to Output B and to the R1 reference bus so
that the room gain stays as the volume is increased.
First, follow the directions given in the VOLUME CONTROL (CODEC ONLY) section to setup Macros 183
and 184. Next, assign the Input T to Output B cross-point at +1 dB and the Input T to Output R1
cross-point at +1 dB to Macro 183. If you are successful, you should see the following:
Figure 15. Adding the phone volume to the Volume up macro definition.
Finally, assign the Input T to Output B cross-point at -1 dB and the Input T to Output R1 cross-
point at -1 dB to Macro 183. If you are successful, you should see the following:
Figure 16. Adding the phone volume to the Volume up and down macro definitions.
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