User guide

...

XX = Checksum

Mixer Categories, Indexes, and Values

Category is a single 7-bit value. Categories specify groups of parameters of the same type, for example all Input

Volumes are in one category, and all Output EQ Q Values are in another category.

Index0, Index1, and Value are all 14-bit integers.

The meaning of Value depends on the category. Different categories can require values in the following forms:

Boolean. On/off for switches, such as polarity and bus assigns. 0 = off 1 = on

Fader. Value for normal fader gains. Range: 0 to 1000 (decimal). Value is in 0.1 millimeters of fader position. A

value of 760 (decimal) corresponds to 0 db gain (unity). A value of 0 corresponds to negative infinity gain (all the

way off).

Faders are controlled externally by setting their position along the fader travel, rather than in raw dB. The fader taper

is piecewise linear.

Panpot. Value of pan control. Value of 63 (decimal) means center Minimum value of 0 means full LEFT Maximum

value of 127 means full RIGHT

Delay Time. Value is in 10ths of a millisecond. Minimum value is 0 Maximum value is 4900 milliseconds for out-

puts/Aux Outputs Maximum value is 1700 milliseconds for inputs.

EQ Gain. Offset of Value is 200 (decimal) Value of 200 (decimal) means GAIN of 0 dB Minimum value is 0

(decimal), which is GAIN of -200 dB Maximum value is 400 (decimal), which is GAIN of +200 db

EQ Type. Value can be: 0 = Low Shelf 1 = Bandpass/Band Reject 2 = Hi Shelf

EQ Frequency. Value is in Hertz scaled by 2 Value of 0 corresponds to 0 Hz. Value of 1000 (decimal) corresponds

to 2000 Hz Maximum value of 12000 (decimal) corresponds to 24000 Hz

EQ Q Value. Value is scaled by 0.01 (decimal) Value of 100 (decimal) is Q value of 1.00 (decimal) Minimum value

is 50 (decimal), which is Q = 0.5 Maximum value is 9999 (decimal), which is Q = 99.99

Fade Time. Value is in tenths of a second. Minimum value is 0 Maximum value is 16383, corresponding to 1,638

seconds

Wait Time. Value is in tenths of a second. Minimum value is 0 Maximum value is 16383, corresponding to 1,638

seconds

Group ID. Minimum value is 0 Maximum value is 64 (decimal)

Example: Setting System Trim to Unity

To set the System Trim you can use the fade table to determine the value to send. You can test this and get

CueStation to calculate the Checksum for you by using "Type=Hardware Control, Command=Raw Data" in the

Frame Control window.

System Trim to Unity

F0 = Start message

1F = LCS Audio manufacturers ID

7E = Matrix3 Product ID

10 = Mixer Subsystem

3F = Broadcast to all LX-300s with Checksum

(use 7f for Broadcast with no checksum)

09 = Set Parameter command

05 = Category ID for System Trim

00 = low 7 bits of parameter Index0

00 = hi 7 bits of parameter Index0

00 = low 7 bits of parameter Index1

Mixer Categories, Indexes, and Values