22
Delay
Each Input Channel of the Intelli-X
2
may have up to 1.5 s of
delay inserted. This would normally be used for time-aligning
speakers in different locations, i.e., under balconies etc. Use
the rotary control to highlight the parameter required; ve are
available for adjustment:
Enable – either the ENABLE or Enter buttons may be pressed
to insert delay in the channel. Default is Off.
Duration – allows the delay to be set in units of time, from 0 to
1.5 s, in microsecond increments. Note that the duration is also
displayed as the equivalent number of digital samples.
Distance – this provides an alternative method of setting the
delay time, in units of distance, from 0 to 500 m. Entering a
delay in terms of distance will usually be more convenient in
real-world situations. Note that distance may also be entered
in feet, if preferred. (The internal distance-to-time conversion is
based on a nominal speed of sound of 346.5 m/s (1,137 ft/s),
at 20 °C and 50% RH)
Temperature – the speed of sound varies with temperature;
this parameter is used in conjunction with Distance. The
ambient temperature may be entered here to obtain a more
accurate delay value. The range available is -20 °C to +50 °C
and the default value is +21 °C. Note that the temperature may
be entered in °F if preferred, and that the value used applies to
all delay settings throughout the unit.
Humidity – the speed of sound also varies with the relative
humidity (RH) of the air. If known, the RH may be entered here,
as a percentage from 0% to 100%, with a default value of 50%.
Note that the humidity value used applies to all delay settings
throughout the unit.
Graphic EQ
The Intelli-X
2
’s Input Channel includes a 30-band (1/3-octave)
graphic equaliser (GEQ), providing +/-15 dB of gain adjustment
in each band, from 25 Hz to 20 kHz.
Three primary GEQ parameters are available for adjustment:
Enable – either the ENABLE or Enter buttons may be pressed
to enable the graphic equaliser. Default is Off.
Mode – selects the band-pass lter type used in the equaliser.
Default setting is Constant-Q, the alternative is Proportional-Q
Band – press Enter when Band is highlighted to enter the
equaliser adjustment mode. Use the h and i buttons to select
the band to be adjusted. Both lter and gain parameters are
permanently enabled for adjustment once Band is selected.
Use the Enter button to switch between them, and BACK/
HOME to go back to Band.
• Frequency – selects the lter band to be adjusted
• Gain – allows 15 dB of cut or boost to be applied in
the selected band.
IMPORTANT NOTE:
The graphic equaliser function is not available if the Intelli-X
2
’s
sample rate is set to 176.4 kHz or 192 kHz.
Parametric EQ
As well as a graphic equaliser, each Input Channel of the
Intelli-X
2
is equipped with a 12-band parametric equaliser. This
provides an alternative and more accurate method of tailoring
the frequency response, and is useful when running RTA
analysis during room tuning.
To enable the entire Parametric EQ section, press the Enable
button. Default is Off.
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