Roland V-Synth owner manual Bit Rate Converter, Pseudo Stereo, 137

40: Bit Rate Converter

By changing the bit count and sample rate, this effect recreates the Lo-Fi (Low-Fidelity) sounds of the early digital samplers and similar machines. After the Lo-Fi processor, a filter to change the tone is arranged in series.

fig.MFX-40

L
		Lo-Fi		Filter
R	Processor
Parameter			Value	Description
Pre Filter Sw			OFF, ON	This is the switch of the filter
				placed before the Lo-Fi process-
				ing
Sample Rate			1/1, 1/2, 1/4,	Sets the fraction of current sam-
			1/8, 1/16, 1/32	pling rates to be used for pro-
				cessing.
Bit Down			0–15	This setting is for reducing the
				bit count.
Post Filter Sw			OFF, ON	This is the switch of the filter
				placed after the Lo-Fi process-
				ing.
Balance			DRY100:0WET–	Volume balance between the di-
			DRY0:100WET	rect sound (DRY) and the effect
				sound (WET)
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
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.

Effects List

Parameter	Value	Description
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.

41: Pseudo Stereo

Spreads the components of the monaural input sound to left and

right, creating an artificial sense of stereo output.

fig.MFX-41

L

	Pseudo
	Stereo
R
Parameter	Value	Description
Depth #1	0–15	Spaciousness of the sound field

Appendices

137