KORG PA4X 76 - Manual (Page 417)

Editing the Sounds |413
Trimming the filter input
▪ Use the Trim parameter (00…99) to adjust the level at which the audio signal
generated by the selected oscillator is input to filter A.
If this value is too high, the sound may distort when Resonance is set to a
high value, or when you play a chord.
Programming the filters
Programming filter A
▪ Use the Filter A > Frequency parameter to set the cutoff frequency of filter
A (00…99).
Frequency
Level
Low Pass
12dB/oct
24dB/oct
This is a filter that cuts the high-frequency
region above the cutoff frequency.
This is the most common type of filter, and is
used to cut part of the overtone components,
making an originally bright timbre sound more
mellow (darker).
When the “Filter Type” is Low Pass Resonance,
the cutoff will have a steeper slope.
▪ Use the Filter A > Resonance parameter to set the resonance of filter A
(00…99).
The resonance emphasizes the overtone components that lie in the region
of the cutoff frequency specified by Frequency, producing a more distinctive
sound. Increasing this value will produce a stronger effect.
▪ Use the Res. Mod. by AMS parameter to choose a modulation source for the
Resonance parameter.
The effect of resonance
Low Pass
Level
Low resonance value High resonance value
▪ Use the Intensity parameter (-99…+99) to specify the depth and direction of
the effect that Res. Mod. by AMS will have on the resonance level specified
by Resonance.
For example if Velocity has been selected, changes in keyboard velocity will
affect the resonance.