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Planet Phatt Operation Manual
18
BASIC OPERATION
Memory
10100101001
01010010100
10101010100
10101001010
Digital/Analog
Converter
1011001
Z-Plane Filter
Amplifier
Basic Sampling System
Planet Phatt
Analog/Digital
Converter
1011001
1011001
-1V -2V
3V
-1V
-2V
3V
1V
0V
3V
-3V
ABOUT PLANET PHATT
Planet Phatt utilizes digital recordings of real instruments for the basis
of its sound. This is similar to a tape recorder except that inside Planet
Phatt, the sounds are permanently recorded on digital memory chips.
To perform this modern miracle, sounds and instrument waveforms
are first digitally recordered or “sampled”. After the sounds and wave-
forms have been truncated, looped and processed, they are “masked”
into the Planet Phatt ROM (Read Only Memory) chips.
Conceptually, the sampling process is very simple, as shown in the
Basic Sampling System diagram. As a sound wave strikes the dia-
phragm of a microphone, a corresponding voltage is generated. To
sample the sound, the voltage level is repeatedly measured at a very
high rate and the voltage measurements are stored in memory. To play
the sound back, the numbers are read back out of memory, converted
back into voltages, then amplified and fed to a speaker which converts
the voltage back into sound waves. Of course, playing back 32 chan-
nels at different pitches tends to complicate matters, but this is basi-
cally how it works. In Planet Phatt, we have left out the Analog/Digital
converter stage since the sounds are already sampled for you.
Summary of Contents for Planet Phatt
Page 1: ...OPERATION MANUAL E mu Systems Inc Fhlanett Phatt ...
Page 9: ...1 Chapter 1 Basic Setup INTRODUCTION BASIC SETUP ...
Page 10: ...Planet Phatt Operation Manual 2 ...
Page 17: ...Chapter 2 Basic Operation 9 BASIC OPERATION ...
Page 18: ...Planet Phatt Operation Manual 10 BASIC OPERATION ...
Page 27: ...Chapter 3 Master Menu 19 MASTER MENU ...
Page 28: ...Planet Phatt Operation Manual 20 MASTER MENU ...
Page 43: ...Chapter 4 Programming Basics 35 PROGRAMMING BASICS ...
Page 44: ...Planet Phatt Operation Manual 36 PROGRAMMING BASICS ...
Page 63: ...Chapter 5 Edit Menu 55 EDIT MENU ...
Page 64: ...Planet Phatt Operation Manual 56 EDIT MENU ...
Page 88: ...Planet Phatt Operation Manual 80 EDIT MENU ...
Page 89: ...Chapter 6 Step By Step 81 STEP BY STEP ...
Page 90: ...Planet Phatt Operation Manual 82 STEP BY STEP ...
Page 103: ...Chapter 7 Reference Section 95 REFERENCE SECTION ...