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  • arkanemist

    great stuff… keep it up

  • roslan aziz

    Tqvm Tim…

  • SteveAnliot

    What software did you use in the video at the top of the page?

    • Tim Perry

      @SteveAnliot Hi Steve,I coded the simulation in the MATLAB programming language, and used a toolbox called k-Wave (http://www.k-wave.org/) to simulate the acoustic wave equations.Thanks for reading :)

  • Rak File

    This site is full of great information, thanks a lot for sharing

    • http://Arqen.com/ Tim Perry

      Rak, thanks for the encouragement. You’re very welcome and I’m glad you appreciate the site. :-)

  • Gunalan Dilliappen

    Dear Sir, After view your design, i really happy with design, i would like to to do DIY. please provide the measurement for Fractal Diffuser B2-Frac.

    • http://Arqen.com/ Tim Perry

      Hi Gunalan,

      I just emailed them to you. But I consider the A1 fractal diffuser (the Leanfractal) to be a better design because you can mount the panels using the same profiled modulations as A1-LF (the Leanfuser). Mounted this way A1-Frac performs better than B2-Frac, and it’s also easier to build.

      • Gunalan Dilliappen

        Hi Tim,

        Thanks for reply, my room size Width is 9 fit and Length 17 fit. Which diffuser is suitable? To make diffuser are we used screw or glu?Thanks

        • http://Arqen.com/ Tim Perry

          Hi Gunalan,

          Both A1-LF and A1-Frac are suitable, but A1-Frac has better high frequency diffusion performance.

          Most people use glue to build them as it looks nicer than screws.

  • Gunalan Dilliappen

    Hi Tim, Are we use glu or skew. pls advise

  • Sedat

    Hey Tim, thank you very much for all the great informations and advices, just wondering how my ATC scm 150 size will adapt to these diffusers format, same problem with the traps and bass traps tutorials.

    • http://Arqen.com/ Tim Perry

      Hi Sedat,

      These diffusers will work with any speakers provided that:
      1) The speakers are set up properly (see my tutorial here http://arqen.com/acoustics-101/room-setup-speaker-placement/).
      2) You’re sitting sufficiently far from the walls where your diffusers are mounted. There is some flexibility here, but when considering the distance to your rear wall, 10 feet (3 meters) or greater is best to create a nice initial signal delay gap. I explain this in the reflection free zone tutorial here: http://arqen.com/acoustics-101/reflection-free-zone#itdg (still a work in progress).

      When it comes to bass traps and speakers, the more bass energy you put into a room, the more bass absorption you need, so speakers should be sized for the room to help minimize the money you have to spend on bass traps.

      Also, pay close attention to speaker boundary interference when placing your speakers. I explain how to minimize speaker boundary interference here: http://arqen.com/acoustics-101/speaker-placement-boundary-interference/.

  • Yan

    Hi Tim, it struck me that the designs don’t use the reflection from the wall behind. I would imagine something like a xylophone. The spacing between bars and distance from wall would be critical at the specular point, but I guess it would work. The device would be lighter both in weight and in visual impact. Would it work?

    Also, I’m adding the less possible treatment to our living room. Due to compromises with my wife, the speakers are now setup both sides of a bay window. There are no direct reflections to the listening area, but these are close calls. I have added absorbers in the middle of the back wall, audibly reducing comb flitering. Temporary absorbers in the bay window help also, but it drives my wife mad and the sound gets an anechoic character. I wonder if I could build a “sculpture”, maybe 2×2, that would be a little fence made of vertical branches all close together? Guess it would need to be quite rigid and wavy at the base to take care of lo-mid frequencies?

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