Planet Phatt Operation Manual
86
STEP-BY-STEP
ALTERNATE VOLUME ENVELOPE
Every sound you hear, be it a piano note, a drum, a bell or whatever,
has a characteristic volume curve or envelope, which grows louder or
softer in various ways during the course of the sound. The volume
envelope of a sound is one of the clues that our brain uses to
determine what type of sound is being produced.
Each instrument has it's own volume envelope which is used when
the Alternate Envelope parameter is turned Off. By turning the Alter-
nate Envelope On, we can re-shape the instrument's natural volume
envelope any way we want. By reshaping the volume envelope of a
instrument, you can dramatically change the way the sound is per-
ceived. For example, by adjusting the envelope parameters, you can
make “bowed” pianos or backwards gongs. The diagrams at the left
show the volume envelopes of a few common sounds.
In preparation for this experiment choose a fairly “normal” preset (like
an organ or synth) which continues to sustain when the key is held
down. Go to the Secondary Instrument screen and set it to “None”.
Next go to the Alt. Volume Envelope screen and turn the Primary
Volume Envelope On.
ALT VOL ENVELOPE
pri:On sec:Off
Now move on to the next screen:
P: A H D S R
00 00 10 99 10
Increase the Attack time and play a note. The attack controls the time
it takes for the sound to reach full volume when a key is pressed and
held.
Now increase the Release time and 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.
• Anatomy of an Envelope
When a key is pressed, the envelope generator starts increasing at the
Attack
rate. When it reaches full level, it Holds at that level for the
Hold
time. After the Hold time has elapsed, the envelope begins to
Decay
back down at the specified Decay rate until it reaches the
Sustain
Level. Note that all the other parameters are
Times
, but the
Sustain is a
Level
.
Percussion
Organ
String
Plucked
••• The generalized volume
envelope shapes of a few
types of sounds are shown
above.
Содержание Planet Phatt
Страница 1: ...OPERATION MANUAL E mu Systems Inc Fhlanett Phatt ...
Страница 9: ...1 Chapter 1 Basic Setup INTRODUCTION BASIC SETUP ...
Страница 10: ...Planet Phatt Operation Manual 2 ...
Страница 17: ...Chapter 2 Basic Operation 9 BASIC OPERATION ...
Страница 18: ...Planet Phatt Operation Manual 10 BASIC OPERATION ...
Страница 27: ...Chapter 3 Master Menu 19 MASTER MENU ...
Страница 28: ...Planet Phatt Operation Manual 20 MASTER MENU ...
Страница 43: ...Chapter 4 Programming Basics 35 PROGRAMMING BASICS ...
Страница 44: ...Planet Phatt Operation Manual 36 PROGRAMMING BASICS ...
Страница 63: ...Chapter 5 Edit Menu 55 EDIT MENU ...
Страница 64: ...Planet Phatt Operation Manual 56 EDIT MENU ...
Страница 88: ...Planet Phatt Operation Manual 80 EDIT MENU ...
Страница 89: ...Chapter 6 Step By Step 81 STEP BY STEP ...
Страница 90: ...Planet Phatt Operation Manual 82 STEP BY STEP ...
Страница 103: ...Chapter 7 Reference Section 95 REFERENCE SECTION ...