E-Mu orbit v2 Manual De Usuario

Orbit V2 Operation Manual

Orbit has an extensive modulation implementation using two multi-
wave LFO’s (Low Frequency Oscillators), two envelope generators and
the ability to respond to multiple MIDI controllers. You can simulta-
neously route any combination of these control sources to multiple
destinations.

Modulation means to dynamically change a parameter, whether it be
the volume (amplitude modulation), the pitch (frequency modula-
tion), or whatever. Turning the volume control on your home stereo
rapidly back and forth would be an example of amplitude modulation.
To modulate something we need a modulation source and a modula-
tion destination. The source is your hand turning the knob, and the
destination is the volume control. If we had a device that would
automatically turn the volume control, we would also call that device
a modulation source. Orbit is designed so that for each of the variable
parameters, such as the volume, there is an initial setting which can
be changed by a modulation source. Therefore in the case of volume,
we have an initial volume and we can change or modulate that
volume with a modulation source. Two main types of modulation
sources on Orbit are Envelope Generators and Low Frequency Oscillators.
In the example above, an envelope generator could be routed to
automatically turn the volume control as programmed by the enve-
lope. Or, a low frequency oscillator could be routed to automatically
turn the volume control up and down in a repeating fashion.