Roland Boutique JX-08 Synthesizer Module - Manual (Page 8)

Panel Descriptions
8
VCF Section
This section controls the filter to alter the sound of the tone.
Controller
(Parameter)
Value Explanation
[HPF] slider 0–3 Specifies the cutoff frequency of the high-pass filter.
[CUTOFF FREQ]
slider 0–10 Sets the cutoff frequency of the low-pass filter. This gives the sound a more mellow
feel, by removing frequency components that are higher than the cutoff frequency.
[RES] slider
0–10 Increasing the value emphasizes the frequencies around the cutoff frequency for a
more unusual sound.
Excessively high settings can produce oscillation, causing the sound to distort.
[LFO] slider 0–10 Sets how much LFO modulation is applied to the cutoff frequency.
[KEY FOLLOW]
slider
0–10 Changes the cutoff frequency according to the keys you play.
With a larger value, playing notes above C4 (middle C) on the keyboard increases the
cutoff frequency the higher you go.
[ENV] knob
0–10 Sets how much effect that the envelope you selected using the [MODE] switch has on
the cutoff frequency.
[MODE] switch
1
(NORMAL),
1 (INVERSE),
2
(NORMAL),
2 (INVERSE)
Selects the envelope and polarity that controls the VCF.