Acoustic Insulation

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KenB123
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2009/11/09 10:25:47 (permalink)

Acoustic Insulation

I am considering adding some ceiling acoustic insulation. This would be to quiet leakage from the basement (listening area) up to the first level area. Currently I have drop-down ceiling tiles, and I would be putting the insulation treatment between the floor boards above the drop-down tiles. The insulation must also be fireproof because some would end up near furnace ducts. Via websearch I found 'Quiet Batt' (http://www.soundprooffoam.com/quiet-batt-insulation.html) and 'Auralex Insulation' (http://www.markertek.com/Acoustic-Materials/Acoustic-Construction-Products/Auralex-Acoustics/2MF24.xhtml).
 
Anybody use any other products/recommendations? Note that I am not trying to build a total soundproof environment. Rather, just seeking a cost-effective solution to reduce any sound leakage.
#1

12 Replies Related Threads

    jimmyman
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    Re:Acoustic Insulation 2009/11/09 12:30:27 (permalink)

      I was thinking about the question of the term "overuse"
    of groove. Some bands be them old or new do overuse it.
    In modern times it's the "boom boom" or the same old
    "chord progression". However some of the older groups
    have also fallen into the "same old sound" subject from
    song to song.

      Whenever I ask a non musician what they like about a
    song it is almost always "the beat". But I never recall a
    musician using "beat" as a term. Musicians are a little
    different in our views on music in some ways but we
    are non the less still people.

      To use a comparative term such as "beauty is in the
    eye of the beholder" it becomes apparent that whether
    a song has groove or not depends on a given person.
    I think that a "diversity" in the structure of the groove
    within a given song is nice.

      Songs that have "distinction" in the different areas of
    the song are more interesting. Something I found
    interesting when looking at my works and those of
    others who did works that sounded good was that
    "they" had this distinction that I did (not) have.

      Just playing "chords" is somewhat like just filling a
    glass of water. There comes a point where the
    glass becomes full of the same thing. I had noticed
    when I added parts to a song such as "strings"
    (to use as an example although it could be any part)
    that playing just chords left it sounding bland.

      Sometimes even a simple "one note" phrase
    or lick can do more than a chord can. As of late I'm
    trying now to play bass parts in a more diversified
    manner. I found that I was playing the bass as a
    "roll" part instead of a "meaningful" part. And the
    same applys to how I was approaching other
    parts/instruments as well.

      I think I may have fallen into habits when arranging
    and playing parts. It's like "just playing" instead of
    "doing something (with) the playing"  

       
    #2
    skullsession
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    Re:Acoustic Insulation 2009/11/09 13:14:04 (permalink)
    jimmyman


      I was thinking about the question of the term "overuse"
    of groove. Some bands be them old or new do overuse it.
    In modern times it's the "boom boom" or the same old
    "chord progression". However some of the older groups
    have also fallen into the "same old sound" subject from
    song to song.

    Whenever I ask a non musician what they like about a
    song it is almost always "the beat". But I never recall a
    musician using "beat" as a term. Musicians are a little
    different in our views on music in some ways but we
    are non the less still people.

    To use a comparative term such as "beauty is in the
    eye of the beholder" it becomes apparent that whether
    a song has groove or not depends on a given person.
    I think that a "diversity" in the structure of the groove
    within a given song is nice.

    Songs that have "distinction" in the different areas of
    the song are more interesting. Something I found
    interesting when looking at my works and those of
    others who did works that sounded good was that
    "they" had this distinction that I did (not) have.

    Just playing "chords" is somewhat like just filling a
    glass of water. There comes a point where the
    glass becomes full of the same thing. I had noticed
    when I added parts to a song such as "strings"
    (to use as an example although it could be any part)
    that playing just chords left it sounding bland.

    Sometimes even a simple "one note" phrase
    or lick can do more than a chord can. As of late I'm
    trying now to play bass parts in a more diversified
    manner. I found that I was playing the bass as a
    "roll" part instead of a "meaningful" part. And the
    same applys to how I was approaching other
    parts/instruments as well.

    I think I may have fallen into habits when arranging
    and playing parts. It's like "just playing" instead of
    "doing something (with) the playing"  

     

    LOL....wrong thread, Jimmy!

    HOOK:  Skullsessions.com  / Darwins God Album

    "Without a doubt I would have far greater listening and aural skills than most of the forum members here. Not all but many I am sure....I have done more listening than most people." - Jeff Evans on how awesome Jeff Evans is.
    #3
    spacey
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    Re:Acoustic Insulation 2009/11/09 13:15:32 (permalink)
    I've been laughing to hard...you beat me skull!
    #4
    jimmyman
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    Re:Acoustic Insulation 2009/11/09 14:00:56 (permalink)
    I've been laughing to hard...you beat me skull!


      Now I've got "the wrong thread phobia" No wait?
    Maybe I had it all along and now it "bit me". Can I blame it
    on "brain cramps"? I'll really have to keep an eye on this
    computer too. It is getting bad about putting  my remarks
    in the wrong thread. Yeah that's it, that's what happened
    That's my story and I'm sticking to it.

      Sorry.
    #5
    bitflipper
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    Re:Acoustic Insulation 2009/11/09 14:26:29 (permalink)
    Ken, when evaluating acoustical isolation materials, keep in mind the underlying physical principles: in order to attenuate sound transmission, the material must either be absorbent enough to dissipate most of the energy put into it, or rigid and massive enough that it simply refuses to accept the energy and instead reflects it back into the room.

    Absorbers make lousy isolators, because it takes such an enormous thickness to achieve significant broadband transmission loss. The materials you've linked to offer very poor isolation, especially at low frequencies. They might be acceptable in an office building, where you're trying to block conversations and office noise, but it would probably end up being a waste of money in a studio.

    If you want to get practical levels of isolation (40+db loss) you'll need to replace the drop ceiling with 3/8" drywall, attached using isolation devices made for that purpose.


    All else is in doubt, so this is the truth I cling to. 

    My Stuff
    #6
    drewfx1
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    Re:Acoustic Insulation 2009/11/09 14:53:13 (permalink)
    jimmyman



    I've been laughing to hard...you beat me skull!


    Now I've got "the wrong thread phobia" No wait?
    Maybe I had it all along and now it "bit me". Can I blame it
    on "brain cramps"? I'll really have to keep an eye on this
    computer too. It is getting bad about putting  my remarks
    in the wrong thread. Yeah that's it, that's what happened
    That's my story and I'm sticking to it.

    Sorry.
    You should have just blamed it on the new forum SW....

    Wait, I mean, You should have just blamed it on the new forum SW...

    drewfx


    #7
    Guitarhacker
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    Re:Acoustic Insulation 2009/11/09 18:33:42 (permalink)
    I agree with Bitflipper, my mom would have paid dearly for some soundblocking on the basement ceiling many a night when I was down there with my buds.....the batts didn't do much.

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    #8
    KenB123
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    Re:Acoustic Insulation 2009/11/09 20:01:52 (permalink)
    bitflipper


    Absorbers make lousy isolators, because it takes such an enormous thickness to achieve significant broadband transmission loss. The materials you've linked to offer very poor isolation, especially at low frequencies. They might be acceptable in an office building, where you're trying to block conversations and office noise, but it would probably end up being a waste of money in a studio.

    If you want to get practical levels of isolation (40+db loss) you'll need to replace the drop ceiling with 3/8" drywall, attached using isolation devices made for that purpose.
    Good point. The purpose actually is to quiet a proposed second TV/Audio listening area that lies below the main family room area. The bass will be the predominant leakage problem.  Being that the insulation I specified in the OP is not cheap, I would hate to spend that and find it is not much improved. The drywall replacement with isolation devices will have to considered, although a bit more work than I had hoped for. Thanks.

    #9
    bitflipper
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    Re:Acoustic Insulation 2009/11/09 22:16:14 (permalink)
    a bit more work than I had hoped for

    Acoustics are just like any other home improvement project: it always comes down to a choice between sweat or money, whichever hurts least.


    All else is in doubt, so this is the truth I cling to. 

    My Stuff
    #10
    Bristol_Jonesey
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    Re:Acoustic Insulation 2009/11/10 07:03:15 (permalink)
    Bit's spot on - the only way to achieve an acceptable degree of isolation is through a combination of mass & air space.

    Remember that one nail punched through in the wrong place will decrease the transmission loss by a huge amount making the whole construction a complete waste of time, money & effort.

    CbB, Platinum, 64 bit throughout
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    KenB123
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    Re:Acoustic Insulation 2009/11/10 12:11:07 (permalink)
    I also received a recommendation to the following website. There is some interesting, easy to understand overviews of various soundproofing scenarios, and the options available for improvement. Granted this is from a commercial product distribution company, but it is informative for anyone new to this.
     
    http://www.soundproofingcompany.com/
    #12
    Bristol_Jonesey
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    Re:Acoustic Insulation 2009/11/10 15:54:27 (permalink)
    There's always a wealth of information on here:

    http://www.johnlsayers.com/



    CbB, Platinum, 64 bit throughout
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