room acoustic set up question - Page 2
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  1. #11
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    Re: room acoustic set up question

    Having recently completed an acoustic remodel, if you are removing the sheetrock to treat the wall the above advice is good, but no need to weave the mass loaded vinyl just put it up last after filling the wall with recycled blue-jeans insulation. You can get some idea of that if you visit this blog http://www.whatsbestforum.com/showth...l=1#post416825 and read through a few posts where there are some clear pictures of how to do it. You do have to do a few creative moves cutting the vinyl to overlap without doubling thickness (or your sheetrock won’t lay flat).

    My acoustician said she found little appreciable benefit to using stuff like green glue between layers of sheetrock, and in your application of jst sound abatement a single layer of 5/8 rock over mass loaded vinyl will be plenty. In my space the sound in adjacent bedroom significantly reduced. If you listen at quiet-moderate levels your neighbors will hardly hear a thing. Be sure to treat behind electrical boxes or any pass through locations.
    óBob V.

    My system: Benz LPS, AMG v12 turntable, Einstein Turntables' Choice phono-pre (dual mono version), dCS Rossini, Audio Research Ref10 pre, Audio Research REF 160M, Wilson Alexia speakers. Transparent Ref MM2 & Gen5 signal cables, Shunyata Zitron Sigma, AlphaNR, Python, Anaconda power cables. Shunyata Hydra Triton v3, Denali 2000t, Stillpoints. HRS. Acoustic environment optimized by Dr. Bonnie Schnitta of SoundSense.

  2. #12
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    Re: room acoustic set up question


  3. #13
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    Re: room acoustic set up question

    Quote Originally Posted by drabbish View Post
    seems like two sets of studs in parallel and dry wall on each side, its an old duplex 1970 or older, there isn't even a fire wall between the two units in the attic. I was considering "green glue and a second layer of dry wall", I dont listen to music very loud and the neighbors are a nice older couple who probably dont care but trying to be as considerate as possible
    This presents no barrier at all to low frequency waves and even if you were to add a second layer of dry wall your neighbours will still be disturbed by the bass but at least high frequencies will be attenuated. Pay careful attention to the ceiling too. This is a major point of weakness in sound isolation. Money spent on a second layer of dry wall is wasted if sound leaks via 1/4 inch ceiling boards...
    Borresen Acoustics ApS Model 01 Compact monitor loudspeakers with Ansuz Darkz T2s Supreme resonance control, Audio Video Manufaktur GmbH (AVM) Inspiration amplifier & streamer, Innuos Zen MKII music server, Ansuz Acoustics cables & accessories. Please visit my system thread hosted on Audioshark for more details. Disclosure: The author is materially connected to Ansuz, Aavik & Borresen Acoustics via friendship with an owner.

  4. #14
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    Re: room acoustic set up question

    I'm just wondering...does an insulator works to block the sound on the partition wall? I am planning to transform my garage to a music room.

  5. #15
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    Re: room acoustic set up question

    Quote Originally Posted by chrispeddler View Post
    I'm just wondering...does an insulator works to block the sound on the partition wall? I am planning to transform my garage to a music room.
    Insulation will attenuate some frequencies passing through the walls (depending on construction/material), mainly mid-bass. Not the lowest. Are you trying to contain sound levels in all directions, including outside (neighbors), or mainly some isolation from inside house (family)?

  6. #16
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    Re: room acoustic set up question

    Quote Originally Posted by AJ Soundfield View Post
    Insulation will attenuate some frequencies passing through the walls (depending on construction/material), mainly mid-bass. Not the lowest. Are you trying to contain sound levels in all directions, including outside (neighbors), or mainly some isolation from inside house (family)?
    Hi AJ. On one side (partition), it's my neighbor that I don't want to be bothered. I also don't want to bother the other house but there are 2 walls (one concrete, then the next wall is just plywood).

    I was told that egg trays works better than an insulator. Is this true? I am on a tight budget so I am willing to DIY everything. Any recommendation?

  7. #17
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    Re: room acoustic set up question

    Quote Originally Posted by chrispeddler View Post
    I was told that egg trays works better than an insulator. Is this true?
    Only if you sell eggs.

    Quote Originally Posted by chrispeddler View Post
    I am on a tight budget so I am willing to DIY everything. Any recommendation?
    Sure, DIY some dipole or cardioid subwoofers (Google is your friend). They produce 6db less sound power and are directional. That helps mitigate the problem of excessive bass SPL leakage through walls from happening in the first place.

  8. #18
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    Re: room acoustic set up question

    Lol on the egg trays...but seriously, there are stores that sells egg trays here...also I observed in some music practice studio that they have cardboard egg trays on their walls so I guess that works but idk if their walls have some other materials inside their walls aside from the trays.

    Will do research on dipole and cardioid subwoofers.

    Thanks AJ!

  9. #19
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    Re: room acoustic set up question

    Quote Originally Posted by chrispeddler View Post
    I observed in some music practice studio that they have cardboard egg trays on their walls
    That's for diffusion (albeit a poor mans version/limited bandwidth), not attenuation of bass. It would only affect higher frequencies.

    Quote Originally Posted by chrispeddler View Post
    Will do research on dipole and cardioid subwoofers.

    Thanks AJ!
    https://kimmosaunisto.net/CardSub/CARDSUB.html
    http://www.linkwitzlab.com/frontiers.htm
    http://musicanddesign.com/u_frame.html
    http://musicanddesign.com/A_B_C_Dipole.html

    You're welcome

 

 
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