Reply To: Lyra 8 with 0-Ctrl

Home Forums Instruments LYRA-8 Lyra 8 with 0-Ctrl Reply To: Lyra 8 with 0-Ctrl



    I really don’t like to see a thread end with complete misinformation, in case someone else finds it later.

    Lyra-8 voices are not triggered by ‘a unique and very weak electrical signal’, but something exactly like an S-trigger – shorting the upper contact to the lower (ground) contact. Otherwise the common trick of placing a coin on a contact pair wouldn’t work. A simple converter circuit of a couple of resistors and an NPN bipolar transistor would allow you to trigger a Lyra voice with a conventional gate signal from a Eurorack synth.

    An interesting feature of the Lyra inputs is that they’re analogue and allow control of the volume of the voice (with a dry fingertip). The impedance of the input is very high, but a resistance in the approximate range 4M – 10M goes from full volume to silence on my Lyra. This may be achievable under external control using a vactrol (with an extremely low drive current) connected across the Lyra contacts.

      Copyright by SOMA Laboratory (This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.) Privacy & Cookies Policy
      Right Menu Icon