Allen & Heath
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XONE:4D User Guide
MIXER SECTION — LFO
LFO Tap Tempo button
Tapping this button will set the speed of the
LFO (low frequency oscillator) within the
range of 0.25Hz - 3.33Hz (15 - 200 BPM)
The LFO speed can be displayed on the BPM
meter by pressing and holding this button
until dots appear after all of the digits—the
BPM display now shows the tempo of the
LFO. This will also let you set the LFO
speed manually using the push/pull lever to
raise or lower the speed from its current
setting.
One very useful feature is the ability to copy
the current BPM speed to the LFO. To do
this, press and hold the LFO tap tempo
button until the LFO speed is displayed on
the BPM screen, then press the BPM tap
button. The LFO speed will now be exactly
the same as the BPM.
Note:
The phase of the LFO will be set the
moment the BPM tap button is pressed
(whilst holding down the LFO tap button).
This will let you synchronise the LFO to a
particular sound on any track being fed to
the auto beat detector. For example,
pressing the BPM tap button on the beat will
sync the LFO to the kick drum.
The light ring associated with this control
will flash in time with the current LFO speed.
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LFO Depth control
This control sets the level at which the filters
will be modulated by the LFO. This works
together with the filter frequency control.
The maximum LFO filter modulation will
occur if the LFO Depth control is fully
clockwise with the filter frequency control
fully anti-clockwise.
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LFO Assign switch
Selects which filter will be modulated by the
LFO. In its left position Filter 1 only is
modulated, in the right hand position Filter 2
only is modulated. In the centre position
both Filter 1 and Filter 2 will be modulated
by equal amounts.
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