How do low frequency room modes travel through walls?

Discussion in 'Pro Audio' started by Jep, Jan 15, 2005.

  1. Jep

    Jep Guest

    Hello everyone,

    I live in an apartment complex and I have a small home studio. I have some
    usual low frequency room modes at 40/80 Hz, and their energy builds up like
    hell when I move away from my standard monitoring position.

    When standing in a corner, where I'm close to the floor and two side wall
    surfaces, the 40 Hz wave is almost unbearably loud. It almost feels like
    there's a real drummer hitting the drumset's kick drum in my room!

    So, my question is: do my neighbours hear the 40 Hz tone as loud as I hear
    it when I'm standing in a corner, or is the "modally excited" version of the
    frequency limited only to my own apartments dimensions?

    I mean, even if the wall between me and my neighbour would be as thick as 10
    feet, I fear it isn't enough for attenuating the mode...Or is the boosted
    frequency just bouncing between my own walls, so I don't have to worry that
    much about the leaking sound?

    Thank you so much for the help.
    Jep, Jan 15, 2005
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  2. Jep

    Jep Guest

    Hi Ethan,

    I checked the resonance and you're correct, it is in fact 80 Hz, not 40.
    Yes, that's what I had in mind. 80 Hz wave is approximately 8 dB's louder in
    the corner than it is in the mixing position. I guess there isn't much I can
    do about it, except build/buy some kind of a resonator. I just wished that
    somehow the 80 Hz mode wouldn't be too loud a problem for my neighbours...
    Jep, Jan 18, 2005
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