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làrachd
Input Utility
User Manual

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Summary of Contents for Instruo Larachd

  • Page 1 làrachd Input Utility User Manual...
  • Page 2: Table Of Contents

    Contents Description / Features Installation / Specifications Overview Level Conversion & Audio Enhancement Envelope Following Pedal Interfacing Patch Examples Distorted Guitar Amp Guitar Controlled Synth Voice Hands Free Recording...
  • Page 3 Description The Instruō làrachd is a fully analogue multifunction utility module that provides various methods of interfacing external signals and interactions into musically useful control voltage signals. It features a stereo line level to dual mono modular level converter, condenser microphone, audio enhancer, envelope follower, threshold comparator, and dual footswitch interface (footswitch included), làrachd is a true “Swiss Army knife”...
  • Page 4 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 làrachd | La:rəxg | noun (vestige) a range of operation, a marked effect, impression, or impact Front LINE IN RIGHT GAIN STEREO LEFT Footswitch ENHANCE FOLLOW RELEASE THRESHOLD ATTACK ENVELOPE GATE TRIG DURATION GATE PEDAL làrachd Stereo Line Input 1 1. Envelope Follower Input 21.
  • Page 6: Level Conversion & Audio Enhancement

    Level Conversion & Audio Enhancement Stereo Line Input: Stereo input for line level to modular level conversion. • The signal present at the Stereo Line Input (TRS 3.5mm) will be split and output from the Left (TS 3.5mm) and Right (TS 3.5mm) Outputs.
  • Page 7 • If the toggle is in the up position, a mono sum of the stereo signal Stereo Line Input present at the is the normalled input source of the Enhance Input Envelope Follower Input. and the • If the toggle is in the centre position, input source normalling to the Enhance Input Envelope Follower Input is muted.
  • Page 8: Envelope Following

    Envelope Following Envelope Follower Input: A signal present at the Envelope Follower Input will generate an envelope signal at the Positive Negative Envelope Outputs. • If no signal is present at the Envelope Follower Input, either a mono sum of the signal present at the Stereo Line Input or the Microphone...
  • Page 9 Attack: Manual attack time control for the generated envelope signal. • Changes to this parameter are additive to the generated envelope signal. • Maximum slew rate is approximately 1V/second. Release: Manual decay time control for the generated envelope signal. • Changes to this parameter are additive to the generated envelope signal.
  • Page 10: Pedal Interfacing

    Pedal Interfacing Dual Footswitch Input: ¼” (6.35mm) input for the included Dual Footswitch or other compatible footswitch controllers. A - Button: If the A - Button (left) of the Dual Footswitch is pressed, a trigger signal is generated at the A - Button Trigger Output.
  • Page 11 Latching Gate Button: Button that, when pressed, will generate a latching gate signal at the B - Button Gate Output. • B - Button Gate Output If a gate signal is already held HIGH at the B - Button Dual Footswitch, pressing due to the pressing of the on the...
  • Page 12: Patch Examples

    Patch Examples Distorted Guitar Amp: Summary: When the electric guitar signal is connected to làrachd, làrachd acts as a preamplifier while tanh[3] acts as a distortion. Electric Guitar Output Audio Path: • Stereo Line Input of làrachd. Connect an electric guitar to the •...
  • Page 13: Guitar Controlled Synth Voice

    Guitar Controlled Synth Voice: Summary: The electric guitar signal gets amplified and sent to the envelope follower. The generated envelope signal then modulates a low-pass filter and a VCA. Electric Guitar Output Audio Path: • Connect a desired waveform of an oscillator to the audio input of a low-pass filter.
  • Page 14 Control Path: • Connect an electric guitar to the Stereo Line Input of làrachd. • Set the Stereo Level knob to 4:00. • Set the Source Toggle to its up position, allowing the Stereo Line Input signal to normal to the Envelope Follower Input.
  • Page 15 Hands Free Recording: Summary: Dual Footswitch controls either both Record functions on Lúbadh or the Capture and Strike functions of arbhar. Output Footswitch Lúbadh Control Path: • Connect the Dual Footswitch to the Dual Footswitch Input of làrachd. • Connect the A - Button Gate Output to the left Record Gate Input of Lúbadh.
  • Page 16 Output Footswitch arbhar Control Path: • Connect the Dual Footswitch to the Dual Footswitch Input of làrachd. • Connect the A - Button Gate Output to the Capture Input of arbhar. • Connect the B - Button Gate Output to the Strike Input of arbhar. Manual Author: Collin Russell Manual Design: Dominic D’Sylva This device meets the requirements of the following standards: EN55032,...