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Thread: Help with EQ/Frequency Issue

  1. #1
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    Default Help with EQ/Frequency Issue

    Currently working with an AT PRO 35 mic which is working a little too well. In addition to pickingup the mando clearly I am getting thumping sounds every time I hit the pickguard or even strings with a finger. It is distracting and not pleasant. If possible I would like to EQ out, or at least lessen, the thumping noise. Any idea what frequency I should try experimenting with?
    Working with a Bose Tonematch 8 for the mixer.
    Thanks Jim
    PS I know the best solution is not to hit anything with my fingers but bad habits are hard to break on short notice.

  2. #2

    Default Re: Help with EQ/Frequency Issue

    Good luck, if you figure that out let me know. I was excited when my new mixer included a real time analyzer so I could try to reduce that… and found that it was across a good portion of the spectrum, not a defined peak like I’d hoped.

    Best solution for me was raising volume on the slider while reducing preamp gain. But still not perfect.

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  4. #3
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    Default Re: Help with EQ/Frequency Issue

    I suspect that the problem is not due to the mic itself but down to the physical transfer of vibrations passing through the mounting system - attach it to something other than the mandolin and see if it goes away. Similar, more expensive, mics of this type (I’m thinking particularly of the DPA) have an anti-vibration, suspension, system to minimise this problem.

    The thump you can hear will be wide spectrum and therefore no amount of frequency filtration will remove it.

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  6. #4
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    Default Re: Help with EQ/Frequency Issue

    Just wanted to say thanks for these helpful answers. Spent about an hour yesterday , before I read these, and tried to EQ out just about any individual frequency possible. Of course the results weren't good for the reason explained above. The best I could come up with was using the ToneMatch setting for "electric mandolin". I will try that at a gig tomorrow. If that doesn't work will look into a different mic set up. By the way, the worst setting I tried was for "accordion". Guess that might be a starter for a different thread.
    Jim

  7. #5
    Registered User foldedpath's Avatar
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    Default Re: Help with EQ/Frequency Issue

    The lowest note on a mandolin is the open G at 196 Hz. Some of the thumping may be below that, so you could try a highpass EQ a little below that frequency instead of trying to target specific frequencies.

    Otherwise I agree with the above comment that how you're mounting that mic is probably the main problem. I used a Pro 35 before getting a DPA 4099, and I clipped the alligator clamp to one of the Tone-Gard ribs on the back of the instrument, with the gooseneck reaching around the side to point at the bottom of the lower F-hole. The Tone-Gard kept it pretty well isolated from any handling noise on the instrument. You might be able to clip it somewhere else like the tailpiece with similar isolation.

  8. #6
    coprolite mandroid's Avatar
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    Default Re: Help with EQ/Frequency Issue

    there are multiband EQ to put in your signal chain to fine tune it .. 10, 12, 24 band , rack mount for the latter ..
    writing about music
    is like dancing,
    about architecture

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