Filter
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TWEAKALIZER DFX69
2. CONTROL ELEMENTS
LFO (Low Frequency Oscillator)
In this mode, the LFO modulates the cut-off frequency
from the lowest to the highest frequency and back to the
lowest frequency. The modulation speed can be either
adjusted continuously using the ENCODER or incrementally
using the BEAT keys (see and ). The increments
available via the BEAT keys are always relative values
expressed in beats. For example, if you enter 2, it will
take two beats for the cut-off frequency to modulate
from the lowest to the highest frequency and back. The
DFX69 calculates the time on the basis of the current BPM
signal automatically.
MANUAL
In this mode, the cut-off frequency can be adjusted using
the large DATAWHEEL (see ). This also allows real-
time filter modulation. You can adjust the reaction time of
the filter using the ENCODER or the BEAT keys located
beneath it (see and ). The shorter the reaction
time, the quicker the filter reacts to the DATAWHEEL
movement.
AUTO
In AUTO mode, the filter frequency is modulated via the
level of the music signal. In this mode, it is important to set
up the filter sensitivity so that it correctly reacts to the
input signal (see ).
FILTER has a function similar to the SHOT key in the
SAMPLER section. Pressing and holding the FILTER key
activates the FILTER effect. As soon as you release the
key, the FILTER effect is deactivated.
When in AUTO mode, the FILTER key has an extra function:
keeping it pressed while turning the DATAWHEEL allows
you to adjust the sensitivity of the filter to compensate for
varying levels between tracks, which will cause the filter
to react differently to various tracks. For example, if the
volume of one track is lower than that of a previous track,
you should increase the filter sensitivity so that the filter
will react appropriately to the rhythm.
RESONANCE increases the cut-off frequency of the
LOW PASS and the HIGH PASS filter (0 - 10), adding
presence to the effect.
2.3.2 FLANGER
The word flange means tape spool, and this explains the
characteristics of the effect. Originally, the flanger effect was
generated with two tape recorders that ran synchronously. The
same audio signal was recorded and played back on both
machines (e.g. a guitar solo). Applying pressure on the left spool
of one of the machines caused the spool and thus the playback
speed to slow down. The generated delay resulted in phase
shifting of the signals.
ON activates/deactivates the FLANGER effect on the
DFX69.
To determine the speed of the effect, first dial up the
FLANGER effect by pressing the ENCODER (see ).
Then, use the BEAT keys located beneath it to dial up one
of the predetermined speed values. This value is a relative
value that is calculated based on the current BPM value.
By turning the ENCODER, you can continuously adjust the
flanger speed. By turning the DATAWHEEL while the effect
is active (see