Download
Share
Print this page
  1. Manuals
  2. Brands
  3. Instruo Manuals
  4. Synthesizer
  5. ceis
  6. User manual

Instruo ceis User Manual

Adsr
Hide thumbs

Advertisement

Quick Links

Download this manual
cèis
ADSR
User Manual

Advertisement

loading
Need help?

Need help?

Do you have a question about the ceis and is the answer not in the manual?

Questions and answers

Related Manuals for Instruo ceis

Summary of Contents for Instruo ceis

  • Page 1 cèis ADSR User Manual...
  • Page 2 Contents Description / Features Installation / Specifications Overview Global Controls Attack / Decay Sustain Release Patch Examples...
  • Page 3 Description The Instruō cèis is a fully analogue voltage controlled ADSR envelope generator. The ADSR function generator is the model pioneered by the East Coast mindset and is extensively used in subtractive synthesis patches. cèis gives the ability to externally control the attack, decay, sustain, and release stages of the envelope while also emitting trigger and gate signals for each segment, offering maximum versatility from a classic tool.

  • Page 4: Installation

    Installation 1. Confirm that the Eurorack synthesizer system is powered off. 2. Locate 8 HP of space in your Eurorack synthesizer case. 3. Connect the 10 pin side of the IDC power cable to the 2x5 pin header on the back of the module, confirming that the red stripe on the power cable is connected to -12V.
  • Page 5 cèis | si:s | noun (envelope) a containing structure or layer, a curve joining the successive peaks of a modulated wave ADSR GATE OUTPUTS 12 13 17 18 COMBINED TRIGGER OUTPUT GATE IN GATE IN GATE LIN ADSR OUT LOG/EXPO TRIG cèis ADSR OUT...

  • Page 6: Global Controls

    Global Controls CV Output: CV Output is the envelope’s control voltage output. • Output range: 0V - 10V. Gate/Trig Input: An envelope signal will output from the CV Output when a gate or trigger signal is present at the Gate/Trig Input.
  • Page 7 • A trigger signal at the Gate/Trig Input (or a gate signal with a duration shorter than the Attack and/or Decay stages), will force the envelope to prematurely jump to the Release stage. Trig Mode: • When set to Trig Mode and gate signals are received at the Gate/ Trig...
  • Page 8 Attack contour with exponential Decay Release contours, similar to classic East Coast ADSR circuits. • The Shape parameter can smoothly morph between the two extreme response curves. Combined Trigger Output: Combined Trigger Output will generate trigger signals at the beginning of each envelope stage. COMBINED TRIGGER OUTPUT •...
  • Page 9 Attack Attack fader defines the onset duration of the envelope. The value set by this control is measured in the time domain. • Moving the fader downward will increase the speed of the attack time. • Moving the fader upward will decrease the speed of the attack time. •...
  • Page 10 Sustain Sustain fader defines the resting voltage level of the envelope signal once the decay stage has been completed. The value set by this control is not measured in the time domain, but instead is measured as a variable voltage level. Once the attack and decay stages have been completed, the sustain stage will be active until the gate signal present at the Gate/Trig Input...
  • Page 11 Sustain Gate Output: A gate signal will emit from the Sustain Gate Output and will be high for the duration of the sustain stage. • Output voltage: 10V. Release Release fader defines the time it takes to reach 0V once the sustain stage has been completed.

  • Page 12: Patch Examples

    Patch Examples East Coast Synth Voice: Summary: The sequencer or keyboard sends voltages to the oscillator while simultaneously triggering cèis. The CV Output cèis opens the filter and VCA, allowing the oscillator signal to pass through. More traditional East Coast patches would incorporate separate cèis modules for the filter and VCA.
  • Page 13 Control Path: • Connect the 1V/Oct output of a sequencer or keyboard to the 1V/ Oct input of the oscillator. • Gate/ Connect the gate output of the sequencer or keyboard to the Trig input cèis. • Connect CV Output cèis to a multiple.
  • Page 14 Vibrato Swell: Summary: Every time the sequencer or keyboard changes state, the cèis 2 CV signal of slowly opens VCA 2, increasing the amount of modulation the LFO can apply to the FM input of the oscillator. Gate Signal 1V/Oct Signal Output (sine) Audio Path:...
  • Page 15 Control Path: • East Coast Synth Voice Create the control path. • Connect the CV output of an unsynchronised LFO to the input of a VCA and set the rate of the LFO to a desired position. • Connect the output of the VCA 2 to the FM input of the oscillator. •...
  • Page 16 Burst Generator: Summary: cèis Everytime is triggered, a burst of trigger signals will stike athrú’s strike input allowing the oscillator’s signal to pass through. Output Audio Path: • Connect the desired waveform of an oscillator to the audio input of athrú. •...
  • Page 17 Manual Author: Collin Russell Manual Design: Dominic D’Sylva This device meets the requirements of the following standards: EN55032, EN55103-2, EN61000-3-2, EN61000-3-3, EN6231 1.