Specifications

222 E-MU Systems

Preset Edit Menu

Filter Envelope

Filter Envelope The Filter Envelope is normally used to control the ﬁlter frequency and has

six stages. Unlike the Volume Envelope, the Filter Envelope must be

patched to the Filter Frequency using a PatchCord. In this respect, it can be

thought of as a general purpose envelope generator which is normally

patched to control the ﬁlter. The Filter Envelope Levels can be negative as

well as positive.

There are three mode options:

• Time-based: Deﬁnes the Filter Envelope rates from 0 to 127 (approxi-

mately 1 ms to 160 seconds). The Master clock has no affect on time-

based rates.

• Tempo-based: The Filter Envelope times vary based on the master tempo

setting and are displayed in values such as 1, 2, 3, etc. Note values are

displayed instead of a number when the time corresponds to an exact

note value. Tempo-based envelopes are useful when using arpeggiators

and sequencers because the envelope rates compress and expand accord-

ing to the Master Tempo setting, keeping the envelopes in sync with the

music. See the illustration on page 174.

• Envelope Repeat: The Envelope Generators can also be made to repeat.

When the envelope repeat function is On, the Attack (1&2) and Decay

(1&2) stages will continue to repeat as long as the key is held. As soon as

the key is released, the envelope continues through its normal Release

stages (1 & 2). For more information see page 174.

 To Turn on Envelope Repeat:

1. Move the cursor until it is underneath the Mode ﬁeld as shown below.

2. Turn the data entry control clockwise. The lower line changes to:

FILT ENV RATE LEVEL

Attack 1 8

4 100%

FILT ENV RATE LEVEL

Attack 1 1

/4 100%

FILTER ENVELOPE

ode: time-based