E-Mu orbit v2 사용자 설명서
Orbit V2 Operation Manual
18
BASIC OPERATION
Memory
10100101001
01010010100
10101010100
10101001010
01010010100
10101010100
10101001010
Digital/Analog
Converter
Converter
1011001
Z-Plane Filter
Amplifier
Basic Sampling System
Orbit
Analog/Digital
Converter
Converter
1011001
1011001
-1V -2V
3V
-1V
-2V
3V
1V
0V
3V
-3V
ABOUT ORBIT
Orbit utilizes digital recordings of real instruments for the basis of its
sound. This is similar to a tape recorder except that inside the Orbit,
the sounds are permanently recorded on digital memory chips.
sound. This is similar to a tape recorder except that inside the Orbit,
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
waveforms have been truncated, looped and processed, they are
“masked” into the Orbit ROM (Read Only Memory) chips.
are first digitally recordered or “sampled”. After the sounds and
waveforms have been truncated, looped and processed, they are
“masked” into the Orbit 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
diaphragm 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
channels at different pitches tends to complicate matters, but this is
basically how it works. In Orbit, we have left out the Analog/Digital
converter stage since the sounds are already sampled for you.
Basic Sampling System diagram. As a sound wave strikes the
diaphragm 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
channels at different pitches tends to complicate matters, but this is
basically how it works. In Orbit, we have left out the Analog/Digital
converter stage since the sounds are already sampled for you.