New OWL user, having noise in my sig chain when connected to a compuer via USB

Home Forums OWL New OWL user, having noise in my sig chain when connected to a compuer via USB

This topic contains 3 replies, has 2 voices, and was last updated by  Martin Klang 8 months ago.

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  • #2749

    Evan
    Participant

    I love building and prototyping new digital effects for my bass/computer rig, but I’m having some issues when connecting the OWL in my signal chain while also connected via a computer. It adds a high pitched, and somewhat variable noise/hiss. I’ve tried to isolate the issue, but have been having a bit of trouble. Is there a quick fix for this that any one knows (USB isolator perhaps)? Or is this a more complex problem that is system specific?

    I have my bass running into my pedal board, going out of a DI into an apogee duet, into my computer. The signal goes into Live/Max, and then out to my amp through the Duet. I have a Push, and a Softstep also connected to the computer. I have noticed that the LEDs on the Push do change the nature of the interference.

    Any advice would be much appreciated.

    #2754

    Martin Klang
    Keymaster

    Hi Evan, have you tried powering with an external (Boss-style) 9v dc adapter?

    #2758

    Evan
    Participant

    I have tried powering the OWL through my Voodoo pedal power 2, which lessens the amount of noise, but doesn’t eliminate it.

    I will run a few more experiments when i get to the studio space tomorrow and see if I can provide any more info.

    Im happy to run the owl without connecting to a computer, but automating patch changes, and parameters of the DSP from my computer rig was part of the excitement.

    #2759

    Martin Klang
    Keymaster

    Sure, I fully understand that. Try using a separate 9v supply for the OWL, it can help to isolate the noise.
    There is otherwise a jumper hidden underneath the digital board inside the pedal which lets you disconnect USB power completely. That means the pedal _must_ be externally powered, even when USB is plugged in. Apart from that USB will still function normally.
    But before you try that I would recommend you search for possible ground loops in your setup, especially if you have a USB powered audio interface.

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