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Thread: Corner Bass Traps - Always beneficial?

  1. #211
    Addicted to Best! microstrip's Avatar
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    Quote Originally Posted by Ethan Winer View Post
    Not naïve at all. The answers is both walls. If a wall could be built to absorb 100 percent of the sound at all bass frequencies, over the entire wall area, then doing only the rear wall might be acceptable. But in practice bass traps are best placed in as many locations as one can manage. Further, unless the speakers are built into the front wall, their rear radiation at low frequencies will hit that wall causing peaks and nulls. So that's another reason to treat both walls.

    --Ethan
    Thanks!

  2. #212
    Addicted to Best! microstrip's Avatar
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    Now, a challenge for the experts in decay time analysis. The two attached pictures show measurements made with REW using a Behringer ECM8000. The room is 31 x 13 x 8 feet . Can you comment on them?
    Attached Images Attached Images   

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    Addicted to Best! NorthStar's Avatar
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    ---Micro, Congrats in reaching 3,000 posts!
    All the Very Best, - Bob --------- "And it stoned me to my soul" - Van Morrison

  4. #214
    Addicted to Best! microstrip's Avatar
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    Quote Originally Posted by NorthStar View Post
    ---Micro, Congrats in reaching 3,000 posts!
    Bob,

    And still a lot to say and to learn ...
    It is a fantastic hobby!

  5. #215
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    Quote Originally Posted by microstrip View Post
    Bob,

    And still a lot to say and to learn ...
    It is a fantastic hobby!
    Liked the above statement microstrip! Thanks...

  6. #216
    Addicted to Best! Rutgar's Avatar
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    Micro, would you mind posting the RT60 graph from these results as well?

  7. #217
    Addicted to Best! microstrip's Avatar
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    Quote Originally Posted by Rutgar View Post
    Micro, would you mind posting the RT60 graph from these results as well?
    I will do it later today.

  8. #218
    Addicted to Best! Rutgar's Avatar
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    Quote Originally Posted by microstrip View Post
    I will do it later today.
    Thanks, Just curious.

    Here is the response (both speakers together) I got in my room, along with the RT-60. Looks like I have a couple of nasty nulls, and that my room is a little over damped.

    Name:  bothch500.jpg
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    Name:  measure02.jpg
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    Edit: I do have the 8 RealTraps I mentioned earlier in this thread, on order. So, it will be interesting to see what they contribute.
    Last edited by Rutgar; 07-30-2012 at 09:13 AM.

  9. #219
    Addicted to Best! Ethan Winer's Avatar
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    Quote Originally Posted by microstrip View Post
    Now, a challenge for the experts in decay time analysis. The two attached pictures show measurements made with REW using a Behringer ECM8000. The room is 31 x 13 x 8 feet . Can you comment on them?
    It looks like a room.

    Seriously, the decay times aren't terrible except for the lowest two modes. Fortunately, most music has little if any energy at 35 Hz, and probably nothing at 18 Hz. If this room also serves as a theater, the extra oomph at 18 Hz could be seen as a plus!

    --Ethan
    I believe in Truth, Justice, and the Scientific Method
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  10. #220
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    ---What is the percentage of movies recorded with real sound content in the 18 Hz area?
    All the Very Best, - Bob --------- "And it stoned me to my soul" - Van Morrison

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