Roland V-Synth owner manual Isolator and Filter, Distortion / OD Distortion / Overdrive, 118

Effects List

04: Isolator and Filter

A 3-band isolator, filter, and low booster are connected in stereo in series.

Isolator is an equalizer which cuts the volume greatly, allowing you to add a special effect to the sound by cutting the volume in varying ranges.

The filters allow you to modify the frequency response of the input sound widely and give sound a character.

The low booster emphasizes the bottom to create a heavy bass sound.

L	3-Band			Filter			Low
R	Isolator						Booster
Parameter		Value				Description
Low Band Level		-60– +4 dB				These specify each level of the
#1						Low, Mid, and High frequency
						ranges.
Mid Band Level
#2						At -60 dB, the sound becomes in-
						audible. 0 dB is equivalent to the
Hi Band Level
#3						input level of the sound.
AP Low Sw		OFF, ON				Turns the Anti-Phase function
						on and off for the Low frequency
						ranges.
						When turned on, the counter-
						channel of stereo sound is in-
						verted and added to the signal.
AP Low Level		0–127				Adjusts the level settings for the
						Low frequency ranges.
						Adjusting this level for certain
						frequencies allows you to lend
						emphasis to specific parts. (This
						is effective only for stereo
						source.)
AP Mid Sw		OFF, ON				Settings of the Anti-Phase func-
AP Mid Level		0–127				tion for the Middle frequency
						ranges
						The parameters are the same as
						for the Low frequency ranges.
Filter Type		THRU, LPF,				Type of filter
		BPF, HPF,				THRU: no filter is used
		NOTCH				LPF: Passes frequencies below
						the Cutoff.
						BPF: Passes frequencies near the
						Cutoff.
						HPF: Passes frequencies above
						the Cutoff.
						NOTCH: Passes frequencies
						other than those near the Cutoff.
			Level				Level
					Freq.				Freq.
				LPF				HPF
			Level				Level
					Freq.				Freq.
				BPF			NOTCH

Parameter	Value	Description
Filter Slope	-12, -24 dB/O	Filter’s attenuation slope
		-24 dB per octave: steep
		-12 dB per octave: gentle
Filter Cutoff	0–127	Cutoff frequency of the filter
		The closer to zero it is set, the
		lower the cutoff frequency be-
		comes; set it closer to 127, and
		the cutoff frequency becomes
		higher.
Filter Reso-	0–127	Resonance level of the filter
nance		Raising the setting increases res-
		onance near the cutoff frequen-
		cy, giving the sound a special
		characteristic.
Filter Gain	0– +24 dB	Compensates for the volume
		dropped in the cut frequency
		range with some filters.
		The level of compensation in-
		creases as the value is increased,
		and raise the volume.
LowBoost Level	-15– +15 dB	Increasing this value gives you a
		heavier low end.
		* Depending on the Isolator and
		filter settings this effect may be
		hard to distinguish.

05:Distortion / OD (Distortion / Overdrive)

Overdrive produces a natural-sounding distortion similar to that produced by a vacuum tube amplifier. Distortion produces a more intense distortion than the overdrive effect.

L
Overdrive/	Amp	2-Band
Distortion	Simulator	EQ
R

Parameter	Value	Description
Input Mode	MONO, STE-	Selects whether to input in ste-
	REO	reo or in monaural.
		If MONO is selected, the left and
		right sound will be mixed, and
		input as monaural.
Distortion	OD, DS	Selects whether to use overdrive
Mode		(OD) or distortion (DS).
Drive #1	0–127	Degree of distortion
Amp Sim Sw	OFF, ON	Turns the Amp Simulator on/
		off.
Amp Type	SMALL,	Type of guitar amp
	BUILT-IN, 2-	SMALL: small amp
	STACK, 3-	BUILT-IN: single-unit type amp
	STACK	2-STACK: large double stack
		amp
		3-STACK: large triple stack amp
Output Level	0–127	Output Level
Ps Low Freq	50–4000 Hz	Frequency of the low range
Ps Low Gain	-15– +15 dB	Gain of the low range
Ps Hi Freq	2000–20000 Hz	Frequency of the high range
Ps Hi Gain	-15– +15 dB	Gain of the high range

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