Source Audio C4 Synth User Manual page 29

o Output 1 + Output 2: Routes all of that Processor's signals to both the Output 1 & 2
jacks.
o Output 2 Only: Routes all of that Processor's signals to the C4's Output 2 jack.
Envelope 1 & 2
The Envelopes control amplitude and filter modulation of the each C4 Voice. Both Envelopes 1 and 2
run independently of each other and each can be assigned a different set of Voices.
•
Audio Input Selector Dropdown Menu: Selects the audio Input (select from Audio Input 1 and
Audio Input 2) to which the Envelope will respond. This ability to isolate which input signal
each envelope responds to allows for what is know as "side chaining" the envelope, meaning
the envelope can react to a signal that is not necessarily being fed into one of the Voices or
being heard in the C4's final Output Mix.
•
Envelope Type Dropdown Menu: Chooses the response of the Envelope. The C4 offers
several different envelope types each with a different set of Attack, Decay, Sustain, and
Release characteristics.
•
Speed Knob: Depending on which Envelope Type has been selected; the Speed control
adjusts how quickly the envelope opens and/or closes.
•
Sensitivity Knob: Adjusts how sensitive the envelope is to the level of the incoming signal.
Turning the down the Sensitivity allows for harder playing, requiring that the player pluck
harder in order to fully open the envelope. Turning up the Sensitivity increases the likelihood
that the envelope opens fully with lighter playing.
•
Gate Knob: Adjusts the sensitivity of an internal Noise Gate. The Noise Gate cuts off the
Output signal completely when it stops receiving an input signal above desired amplitude –
thereby eliminating any unwanted hum or noise. Increasing the Gate knob causes the noise
gate to close at higher and higher input levels.
SA249 C4 Synth User Guide 29