Bedienungsanleitung Polycom Vortex EF2280 (Seite 7 von 105) (Englisch)

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the absolute values of all of the non-global settings of the device. This includes, but is not limited to, input and

output gain settings, matrix settings, algorithm settings, parametric EQ settings, and automixer settings. See

Section 7 for a list showing all the commands and which are saved to presets.

Presets should be used when you really want to change all the settings in a device. One example would be when

you want to have one unit be able to control different rooms. In this case, having a preset for each different

room is the easiest solution.

Macros are like mini-presets. You can define them to change only the settings you are interested in. One

advantage of macros over presets is that macros can make relative changes in addition to absolute changes. An

absolute change is something like "set the input gain to -3 dB". A relative change is something like "raise the

input gain by 3 dB". One example of using macros for a relative change is stereo volume ramping. If you have

two outputs setup to have left and right program audio, then you could build a macro that contains two

commands: one to increment the left channel by 1 dB and the other to increment the right channel by 1 dB.

Then, by calling that macro, you can ramp the stereo outputs. A similar thing can be done with decreasing the

volume.

Another thing to consider when using macros and presets is to use the

MACROQ and PRESETQ commands instead

of the

MACROX and PRESETX commands. Both the Q and X versions execute the macro or preset, but the X

versions produce acknowledgements for the settings that change, while the Q versions don't. If your control

system updates its status by looking at the acknowledgements that come back, then you'll probably want to use

the X versions. Another option would be to use the Q versions and then manually query the values you're

interested in. If your control system does not need use acknowledgements, or if you are manually querying the

values you're interested in, using the Q versions is better since it doesn't generate acknowledgements and thus

reduces RS-232 traffic.

3.5. Automixer Dependencies

The commands AMASGN, AMCHAIR, AMCHNUM, AMLMM, AMLMN, and MGATE have dependencies on each other

and can cause errors (ERROR#040 through ERROR#045) if an assignment attempts to break one of these

dependencies. See the descriptions of the above commands and the

ERROR command for more information on

these dependencies.

The dependencies in these commands can cause a problem when trying to build macros. For example, your

macro may use the above commands to set the automixer to a certain configuration. The problem is that

although your commands would put the automixer in a valid configuration, one of the intermediate

configurations might be invalid. If this happens, the invalid command(s) will not execute and the automixer will

not be in the configuration that you intended.

For example, assume that we start with all inputs assigned to automixer group "none" (

AMASGN), chairman mode

(

AMCHAIR) is disabled for both automixers, chairman mic (AMCHNUM) is set to 1 for both automixers, last mic

mode (

AMLMM) is set to off for both automixers, and last mic number (AMLMN) is set to 1 for both automixers.

Now, suppose your macro executes the following commands in the order shown.

AMASGN*ààààåååå

(assign inputs 1-4 to automixer 1 and inputs 5-8 to automixer 2)

AMCHAIR11

AMCHAIR21

AMCHNUM11

AMCHNUM25

AMLMM11

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