E-Mu Ultraproteus, Operation Manual

Page: 165 / 307

144 UltraProteus Operation Manual
STEP-BY-STEP
Set the Sustain (S) to 99 and slowly increase the Release time. Note the effect as
you release the note. The release time controls the time it takes for the sound to
die away when a note is released.
Practice making different volume envelopes. As you hear everyday sounds, try to
imagine what the volume envelope of these sounds might look like.
Anatomy of an Envelope
When a key is pressed, the envelope generator level starts to increase at the
Attack rate. When it reaches full level, it Holds at that level for the specified
Hold time. After the hold time has elapsed, the envelope begins to Decay back
down at the Decay rate until it reaches the Sustain Level. (Note that all the
other parameters are Rates , but the Sustain is a Level .) The envelope will stay at
the Sustain level for as long as the key is held. When the key is Released, the
envelope falls back down to zero at the
Release rate.
FOR MORE INFORMATION
ABOUT ENVELOPES, SEE THE
PROGRAMMING BASICS
CHAPTER IN THIS MANUAL.
THE DELAY PARAMETER IS ONLY
AVAILABLE IN THE AUXILIARY
ENVELOPE.
The secondary alternate volume envelope parameters perform the same func-
tions on the secondary layer.
Detune
The next screen, Detune, doubles the instrument and detunes it
slightly by an adjustable amount. This acts like a chorus effect and serves to
“fatten” the sound. Try it and notice how much fuller the sound becomes.
Because this function works by using two instruments per layer, it halves the
number of available notes that can be played. Therefore you should only use this
feature when necessary to achieve the desired effect.
DETUNE
pri:06 sec:Off
level
time
key
down
A H D
S
R
key
released