E-Mu Morpheus Specifications download pdf (Page 97)

Vintage Pro Owners Manual 87

Programming Basics

Envelope Generators

Envelope

Generators

An envelope can be described as a “contour” which is used to shape the

sound over time in a pre-programmed manner. There are three envelope

generators per layer and all of them are the rate/level type.

This is how the rate/level (time based) envelopes work: When a key is

pressed, envelope starts from zero and moves toward the Attack 1 Level at

the Attack 1 Rate. As soon as it reaches this ﬁrst level, it immediately begins

the next phase and moves toward the Attack 2 level at the Attack 2 rate. As

long as the key is held down, the envelope continues on through the Decay

1 and Decay 2 stages. If the key is still held when the envelope reaches the

end of Decay 2, it simply waits there for you to release the key. When you

release the key, the envelope continues into the Release 1 and Release 2

stages, stopping at the end of the Release 2 stage. Vintage Pro’s envelope

generators provide great ﬂexibility for programming both complex and

simple envelopes.

If two adjacent segments

have the same level in a “time-

based” envelope, the segment

will be skipped. Adjacent

segments must have different

levels for the rate control to work.

All three envelope generators have the six stages described above. The

Volume Envelope generator controls the volume of the voice over time.

The Filter Envelope generator is a general purpose envelope most often

used to control the ﬁlter frequency. Unlike the Volume Envelope, however,

the Filter Envelope can have a negative level value as well as a positive

level. There is also an Auxiliary Envelope generator which is a general

purpose envelope. The Auxiliary Envelope is identical to the Filter Envelope

and can have negative as well as positive levels. You can adjust the time of

each stage to create myriad envelope shapes, which in turn shape the

sound over time.

By routing the Auxiliary

or Filter Envelopes to control the

pitch (PatchCords) you can

easily hear the shape of the

envelopes you are creating.

• Volume envelopes contour the way the volume of a sound changes

over time determining how we perceive that sound. For example, a

bell struck with a hammer is instantly at full volume, then slowly dies

away. A bowed violin sound fades in more slowly and dies away

slowly. Using Vintage Pro’s Volume Envelope, you can simulate the

different types of natural instrument volume envelopes by program-

ming them appropriately.

Atk1

Atk2

Dcy1

Dcy2

Rls1

Rls2

Key

Down

Key

Released

Sustain

time

level

1 2 ... 92 93 94 95 96 97 98 99 100 101 102 ... 247 248

Comments to this Manuals

No comments

E-Mu Morpheus Specifications Page 97

Comments to this Manuals

Related products and manuals for Synthesizer E-Mu Morpheus