Roland MC-505 Owner's Manual download pdf (Page 69)

Making the Brightness

Change Over Time

(Filter Envelope)

On acoustic instruments, the tone quality (brightness)

often changes over the duration of a note. For exam-

ple, on a piano, the sound at the beginning of each

note contains many overtones (i.e., has a bright tone),

and as the note decays to silence, the overtones dimin-

ish, making the sound more mellow. The F-ENV

(Filter Envelope) section lets you create this type of

tonal change over time.

Filter Envelope Settings

1. [ENV SELECT] several times to select FILTER.

2. Use the [A]/[D]/[S]/[R] sliders to adjust the

filter envelope values.

Range: 0Ð127

fig.3-114TEXT

[A] (Attack Time)

The time from when the keyboard pad is pressed until

the maximum tonal change is reached.

Higher settings will cause the tonal change to occur

over a longer time.

[D] (Decay Time)

The time from when the maximum tonal change is

reached until the Sustain Level is reached.

Higher settings will cause the tonal change to occur

over a longer time.

[S] (Sustain Level)

The cutoff frequency level at which the tonal change

will stabilize.

Raising this setting will also raise the cutoff frequency.

[R] (Release Time)

The time from when the keyboard pad is released

until the sound disappears.

Higher settings will cause the tonal change to occur

over a longer time.

Specifying the Depth of the

Envelope (Filter Envelope Depth)

This setting adjusts the depth of the filter envelope.

1. Press [ENV SELECT] several times to select

FILTER.

2. Use the [DEPTH] slider to adjust the Filter

Envelope Depth setting.

fig.3-115

Range: -63Ð+63

As the value is increased in the positive (+) direction,

the amount of tonal change will increase. With nega-

tive (-) settings, the shape of the envelope will be

inverted, and the tone will change in the opposite

direction.

Making More Detailed Settings

1. Hold down [EDIT] and press keyboard pad

[5].

The display will show the F-ENV section setting page.

2. Use PAGE [<] [>] to select parameters with-

in the section, and edit them.

PITCH

FILTER

DEPTH

AMP

F-ENV: ENV Depth

C#4( 61) +63

PITCH

FILTER

AMP

SAD

Cutoff

frequency

Time

Key on Key off

Level1=Level2=127

Level4=0

Time2=0

Chapter 3. Creating Original Sounds (Patch Edit/Rhythm Edit)

1 2 ... 64 65 66 67 68 69 70 71 72 73 74 ... 257 258

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Roland MC-505 Owner's Manual Page 69

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