Yamaha VL70-m User Manual

● Filter & EG Edit Parameter Descriptions

The small parameter numbers in parentheses apply in the VL-XG sound module mode.

(03)

• Filter EG Depth
• Settings: -64 … +63

The “FilEG Dept” parameter determines to what
degree the amplitude /filter envelope generator (see
“08(06): Attack Time”, “09(07): Decay Time”, and
“10(08): ReleaseTime”, below) affects the filter’s
cutoff frequency. Higher values allow the envelope
generator to vary the filter cutoff frequency over a
wider range.

 (VOICE mode only)

• Cutoff Scaling Breakpoint
• Settings: C-2 … G8

Filter cutoff frequency “scaling” ( or “key scal-
ing”) produces natural timbre variations across the
VL70-m note range by allowing an increasing or
decreasing filter “depth” curve to be applied above
or below a specified “breakpoint” note. The
“CutoffScBP” parameter specifies the breakpoint
note.

 (VOICE mode only)

• Cutoff Scaling Depth
• Settings: -64 … +63

This parameter specifies the amount of filter cutoff
frequency key scaling to be applied above or below

(01)

• Cutoff Frequency
• Settings: -64 … +63

Sets the cutoff frequency of the VL70-m filter.

(02)

• Resonance
• Settings: -64 … +63

This parameter produces a resonant peak at the
filter’s cutoff frequency, thereby emphasizing
frequency components at that frequency. When
“Resoance” is set to its minimum value, the filter
response rolls off sharply at the cutoff point. As the
resonance value is increased, however, a peak of
correspondingly increasing amplitude is produced
at the cutoff frequency.

● Example: low pass filter

frequency

frequency

Passband

Passband

level

level

Cutoff 
frequency

Cutoff 
frequency

Resonance

• Resonance: minimum

• Resonance: maximum