34
Parameters
Filter
By modifying the filter settings, you can control the timbre (tone) of the sound. The
type of filters in the SC-8820 are called Low Pass Filters, and allow only frequencies
lower than a specified frequency to pass. This frequency is called the Cutoff Frequen-
cy. By modifying the setting of the Cutoff Frequency you can make the sound bright-
er or darker. The Cutoff Frequency can change over time, controlled by the envelope.
By adjusting the filter and envelope settings, you can create sounds that have move-
ment and expression.
fig.6-3e
■ Cutoff Freq (Cutoff Frequency) -64–0–+63
Positive settings of Cutoff Freq will raise the cutoff frequency. Negative settings will
lower the cutoff frequency. As you set this value higher in the positive direction,
more overtones will be allowed to pass, and the sound will become harder (brighter).
The further this value is set in the negative direction, the fewer overtones will be al-
lowed to pass, and the sound will become softer (darker).
fig.6-4e
■ Resonance -64–0–+63
When the Resonance value is increased, the overtones in the area of the cutoff fre-
quency will be emphasized, creating a sound with a strong character.
fig.6-5e
Higher frequencies
Lower frequencies
Cutoff frequency
Low
pass
filter
For some sounds, positive
(+) settings of Cutoff Freq
will cause no noticeable
change in the sound.
Level
Cutoff frequency
Frequency
Low pass filter characteristics
For some sounds, negative
(-) settings of Resonance
will cause no noticeable
change in the sound.
Resonance
Low High
Cutoff frequency
Frequency
Level
To Next Page
Loading...
Need help?
General
