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absorber

  1. Home Audio Acoustics
    Here is a ten step guide for making cheap 2" thick fiberglass broadband absorbers with a 2" air gap from materials easily available in Thailand. At the bottom of the post are guidelines for using panels as ceiling clouds and for installation in front of windows or other obstructions that can't...
  2. Home Audio Acoustics
    How do I calculate the size of the inlet openings for the front of the riser? My riser will be constructed out of 2x8's at the perimeter with the middle "joists" being 2x6's spaced at 12" on center. I'll fill the cavities with 6" paperfaced fiberglass batts "hung" from the top of the framing...
  3. Home Audio Acoustics
    Hi How is the sound reflection or absorbation function of water in a large plastic can? How would a 25 litre plastic can stand against say a normal bas trap? Is the question just stupid (as I don't can find anything about the topic..) ? Don't ask how I got the idea.... :-) / OpZ
  4. Home Audio Acoustics
    I am going to install a 4x8 sheet of OC705 as a cloud absorber. My ceiling height is 89" (7'5"), room is 158" (13'2") by 214" (17'10") deep. My screen/false wall is 24" forward from the front wall. My concern is that my first reflections on the ceiling are about 7' wide, but very narrow front...
  5. Home Audio Acoustics
    Hi! This is my first post here, I'm totally new to audio and acoustics and I'm looking at building broadband corner absorbers for my living room. I live in Australia so obviously don't have access to US materials. I contacted a local business and have been quoted on the following materials...
  6. Home Audio Acoustics
    Hello, short and simple: is a tuned panel absorber good cure for SBIR <100Hz ? Thanks JUho
  7. Home Audio Acoustics
    Okay, I have a lot of details in my other thread (like pics, measurements, and what not). However, the scope is probably a bit too broad. So I will break it down into specific questions that might generate more discussion. The biggest problem I have is a 30 Hz wide band null in the room...
  8. Home Audio Acoustics
    I'm in the process of testing my small studio, and I have a few questions. Can a Real time analyser be used instead of a digital SPL detector? I am only interested in comparing one frequency relative to another. Using Real time analyser software, I found variations of up to 6.5 dB between...
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