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D beam info (d beam information) screen, Filter – Roland SP-606 User Manual

Page 74

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74

Chapter 9. Using the D Beam

FILTER

This lets you use the D Beam to control a built-in filter that features an extremely steep slope.

In this screen you can view the D Beam value in graphical form. (Vertical axis: D Beam value; Horizontal axis:
time)

Press [F3] (EXIT) or [EXIT] to return to the

D BEAM SETTING

screen.

Vibrato Depth

0–127

Specifies the depth of vibrato (an effect that uses an LFO to cyclically vary the
pitch of the oscillator).

LFO Wave

0–127

An LFO (Low Frequency Oscillator) is used to apply various types of modula-
tion (cyclic change) to the tone or pitch. You can select one of the following LFO
waveforms.

SAW

: sawtooth wave

TRI

: triangle

wave

SQR

: square

wave

RND

: randomly changing waveform

LFO Rate

0–127

Specifies the speed of modulation.

PORTAMENT

TIME

0–100

Specifies the time over which Portamento (a function that creates smooth pitch
transitions between synthesizer notes) will vary the pitch. With higher settings,
the pitch change will take longer.

Parameter

Value

Explanation

Cutoff Low

0–127

Specifies the lower frequency limit for the D Beam controller.

Cutoff High

0–127

Specifies the upper frequency limit for the D Beam controller.

Resonance

0–127

Specifies the resonance level of the filter. Raising this value will boost the sound in the
region of the cutoff frequency.

Type

LPF,
BPF,
HPF,
NOTCH

Specifies the type of filter. Each type of filter will pass the following frequencies.

LPF

:

frequencies below the Cutoff

BPF

:

frequencies near the Cutoff

HPF

:

frequencies above the cutoff

NOTCH

: frequencies other than at the Cutoff

Slope

-12dB,
-24dB,
-36dB

Specifies the steepness of the filter (expressed as the amount of attenuation per octave).

Gain

0–+12dB

Adjusts the amount of boost for the filter output.

D BEAM INFO (D Beam Information) Screen

Parameter

Value

Explanation

SP-606_e.book 74 ページ 2004年6月21日 月曜日 午前10時8分