Filter
Top Products
123
Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760
Appendices ~ Appendix E: Serial Commands
RAMP – Ramp Gain Adjustment
This command starts/stops the gain ramp for an input, output, or assignable
processing block. There is no query for this command.
Command form: DEVICE
RAMP
<Channel><Group><Rate>[Target]
Argument details
Name Description Unit
Device 0–7 or * to select all units
RAMP Command
Channel See Groups and Channels, page 97
Group I, O, M, L, P, T, R (1, 2, 3, 5, 16, 17)
Rate -50 to 50 dB/s
If value = 0. the ramp will stop
If value < 0, the gain will ramp down
If value > 0, the gain will ramp up
Target -65 to 20 dB
If null in text, the ramp will use the
channel’s maximum and minimum for a target
Example:
#57 RAMP 5 L 6 12
On XAP 800 unit 7 (
#57
), the gain (
RAMP
) on
L
ine Input
5
will increase at a rate of
6d
B/sec until the
12
dB point is reached.
REFSEL - PA/AEC Reference Select
This command selects/reports which output is used for each mic as a reference for
power amp adaptation mode and acoustic echo cancellation where applicable. There
can be only one selection per mixer.
Command form: DEVICE
REFSEL
<Channel> [Ref. Group] [Ref. Channel]
Argument details
Name Description
Device 0–7 or * to select all units
REFSEL Command
Channel 1–8 (select mic input)
Ref. Group 0 = Output, E = Expansion bus
Ref. Channel 1–9, O–Z (select output or E-bus channel)
Example:
#50 REFSEL 1 O 8
On XAP 800 unit 7 (
#50
), the PA/AEC reference
REFSEL
for mic channel
1
is output (
O
)
12
.