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Clocking Vector from DAW (Bitwig) through ADAT/ES-3; hot clock signal gotcha

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  • Clocking Vector from DAW (Bitwig) through ADAT/ES-3; hot clock signal gotcha

    It took me a while to sort this one out, so I am posting it here since it could be useful to someone else, sooner or later:

    Vector’s clock input does not like hot pulses. It wants an approximate 5V pulse. My Vector (v2 firmware) is happy up to about 8V. Above that, it starts clocking weird… kind of like a drunk walk.

    I encountered this issue by trying to clock Vector from Bitwig using Bitwig’s HW Clock device sent through ADAT to my ES-3. I was getting a 10V pulse out of that! (Bitwig offers no option for taming that voltage.) To assuage Vector, I have to first patch that clock signal from the ES-3 through a simple attenuator to bring it down to around 5V. Then, the Vector will chug along happily in CR/4 clocking mode with Bitwig!

    It would be good if the Vector manual got updated to mention that a 5V clock is expected, since there are many possible clock sources in Eurorack that could easily exceed that.

  • #2
    Update: this is Bitwig-specific, but I am now using a simple Grid instance to send Vector a 24 ppqn clock and run/stop gate. Seems really solid. Same fix works for Pamela’s New Workout, which also dislikes hot clock signals.

    Basically, I have an instrument track set up in my Bitwig project template that contains a mix of HW CLOCK OUT devices and a GRID instance. The former clocks Metron and a Doepfer clock divider in my rack, provides a “Reset on play trigger” that I mult to various modules, and also a four bar reset trigger that I can use or not, as I see fit. The Grid provides an attenuated 24ppqn clock for both Vector and PNW, which are modules that require 0–5v (and will malfunction if sent 0–10v), plus a simulacrum of the DIN SYNC run/stop gate, which is something that Vector currently requires in RC24 sync mode.

    1d3e8502fb664555e9f3692eb2b36d3f0617f8df.jpg
    from https://llllllll.co/t/bitwig-studio/6108/297
    Attached Files
    Last edited by mdoudoroff; 06-08-2022, 08:16 AM.

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    • #3
      Excellent -- thanks for posting this solution, will be handy for other folks using BitWig!

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