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Upstage
NOTE: This wiki describes version 0.5.0 of DHE Modules. For information about the latest version, see https://dhemery.github.io/DHE-Modules/.

Upstage offers controls to enhance a chain of Stage modules.
See:
- Upstage User Interface
- How to build Single-Stage Envelopes
- How to build Multi-Stage Envelopes
Use these controls to supply a desired starting voltage to a chain of Stage modules.
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LEVEL (voltage): Upstage's unmodulated OUT voltage. The range is 0 to 10 volts.
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CV (level): A CV signal added to the LEVEL voltage to produce the OUT voltage.
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OUT (voltage): The sum of the LEVEL voltage and the CV signal, limited to the range 0–10 volts.
Use these controls to insert a manual trigger into a stream of triggers from some other source.
Note that these controls have no effect when Upstage is in Waiting Mode.
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⇒ TRIG (trigger in): An incoming trigger signal. Upstage forwards this signal to the TRIG ⇒ (trigger out) port.
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TRIG (button): While the TRIG button is pressed, Upstage sends 10 volts to the TRIG ⇒ (trigger out) port.
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TRIG ⇒ (trigger out): Emits either the signal at the ⇒ TRIG (trigger in) port or the trigger signal produced by the TRIG button, whichever is greater, to a maximum of 10 volts.
Use these controls to suppress triggers temporarily.
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WAIT (gate): While the WAIT gate is high, Upstage is in Waiting mode.
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WAIT (button): While the WAIT button is pressed, Upstage is in Waiting mode.
When Upstage is in Waiting Mode, it sends 0 volts to TRIG ⇒ (trigger out) regardless of the state of the ⇒ TRIG (trigger in) port and the TRIG button.