Polycom Vortex EF2280 User Manual

however its value will not be used for filter computations. This valid/invalid parameter information above is
provided mainly as guidelines for programmers writing control software for the Vortex. If a parameter is not valid
for a specific filter type, then the control for editing that parameter should be disabled or removed when that
filter type is selected.
This command is saved to non-volatile memory only as part of a preset. The state of this command will be
restored after power-up only if a preset is saved and that preset is set to be the power-on preset.
Example Description Status Message
F01PEQIA3,2,1,1250,40,-20,1,1
Set the parametric
EQ on input 3 , band
2 to the following
parameters: type =
parametric filter,
frequency = 1250
Hz, bandwidth = 40
1/100th octaves,
gain = -20 dB,
enabled = yes, slope
= 1 dB per octave.
The value of the
slope parameter is
irrelevant for this
type of filter, we
could have set it to
anything.
F01PEQIA3,2,1,1250,40,-20,1,1
F01PEQIAB,1,?
Query the current
parameter settings
for the parametric
eq filter on input B ,
band 1.
F01PEQIAB,1,t,f,b,g,s,e , where the
parameters t, f, b, g, s, and e correspond to
the current settings of the type, frequency,
bandwidth, gain, slope, and enabled parameters,
respectively. If this filter was set to the same
parameters as given in the above example, the
status message would be
F01PEQIAB,1,1,1250,40,-20,1,1 .
8.104. PEQIB -- Set Bandwidth Parameter for Specified
Parametric EQ Input Stage
This command sets or queries the bandwidth parameter (in 1/100th octaves) for the parametric equalizer (EQ)
filters on input channels 1-8 and A-D . Each channel has five bands of parametric EQ that can be independently
controlled.
The minimum and maximum values for the bandwidth parameter are 5 and 200, respectively.
This command has the same format and restrictions as the
PEQIA command except that only one parameter, the
bandwidth, is specified instead of all the parameters. See the
PEQIA command for more information. To set the
bandwidth parameter for an output parametric EQ filter, use the
PEQOB command. To set all the parameters for
an output parametric EQ filter, use the
PEQOA command.
This command is saved to non-volatile memory only as part of a preset. The state of this command will be
restored after power-up only if a preset is saved and that preset is set to be the power-on preset.

Polycom Vortex EF2280 Specifications

General

Rack capacity	1U
Frequency range	20 - 20000 Hz
Cancellation span	270 ms
Echo cancellation	65 dB
Phantom power	48 V
Nominal input level	0 dB
Output gain	-100 - 20 dB
Output impedance	33 Ω
Maximum output amplitude	23 dB
RS-232 ports	1
Audio connections	2 x 3.5mm
Parallel ports quantity	2
Input voltage	110 - 240 V
Output current	20 mA
Output voltage	5 V
Input frequency	47/63 Hz
Power consumption (typical)	30 W
Operating temperature (T-T)	0 - 40 °C

Weight and Dimensions

Weight	1800 g
Dimensions (WxDxH)	483 x 244 x 45 mm