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flight of harmony The Sound Of Shadows User Manual

Voltage-controlled (vc) digital delay module based around the pt2399 echo ic1
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Eurorack Module
~rev1.0~

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Summary of Contents for flight of harmony The Sound Of Shadows

  • Page 1 Eurorack Module ~rev1.0~...
  • Page 2: Specifications

    Components Assembled Sound of Shadows digital delay module DC power cable – 9” Ribbon cable (Doepfer standard) M3x0.5x5mm Stainless-Steel machine screws M3 Nylon washers Specifications Supply Voltage ±12VDC = 51mA = -21mA Supply Current (max draw @ ±12V) Max. Input Voltage (@ ±12V) Max.
  • Page 3: Feature Summary

    What is it? The Sound of Shadows (SoS) is a voltage-controlled (VC) digital delay module based around the PT2399 echo IC from Princeton Technology – which was, by the way, originally designed for Karaoke equipment. The SoS is essentially two separate modules: a delay and a voltage-controlled amplifier (VCA). The focus of the SoS was the delay while the VCA was thrown in because half of an LM13700 IC was unused, so the VCA is very basic.
  • Page 4 Controls Rate: This controls the delay clock rate, which in turn controls how fast the delay steps through its memory array and thusly the amount of delay. Clockwise rotation increases the rate (which decreases the delay time), counter-clockwise decreases the rate (which increases the delay time). Feedback: Controls how much of the delayed signal is fed back into the delay cell.
  • Page 5 Jacks fig.1 The jacks are grouped by the type and direction (into or out of the module) of the relevant signal. The VCA jacks are just labeled “VCA”, as the function of each is already described by what row they are in. CV in Rate: Quirk...
  • Page 6 Other connections Power: The power connector header is a 2x5 shrouded box header which accepts the standard Doepfer power cable. This header style is polarized, meaning the connector can only be inserted one way, to prevent connecting the power backwards and damaging the unit.
  • Page 7 The descriptions will be minimal, if they aren’t enough for you, you should not be messing with them. Top row, left to right: Bottom row, left to right: CLNMIX con. Clean buffer  mix pot IN(R) Signal input (J) DELOUT Delay signal out (J) Signal input DELMIX...
  • Page 8 Stuff There is a lot of discussion about the Sound of Shadows on the Muffwiggler forums, come check it out! People have posted some excellent demos on there. I haunt the forums as well, and new things are posted there long before they hit the f(h) website.