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Adjustable reflective ceiling

Discussion in 'Room Acoustics / Isolation / Treatment' started by Damien Moody, Apr 22, 2016.

  1. Damien Moody

    Damien Moody Active Member

    I'm building a live room for my studio. The room is a former bedroom and the dimensions are not ideal. (8'2" H x 12'1" x 12'9 1/2", plus a small alcove that was a closet with bifold doors. Doors have been permanently removed.) I do have the ability to completely rip it apart and rebuild it, but due to budget constraints, that will have to wait. For now, I'm working with what it is.

    I live in the country, and this former corner second-floor bedroom is already sufficiently quiet with the existing standard construction in place. I will treat the room so that the walls can be adjusted to various levels of reflectivity/absorption, depending on the demands of the project at hand. This I can accomplish easily enough by building my own absorptive panels and fractal diffusers. Area rugs can be placed or removed to handle floor reflectivity/absorption.

    My question is about the ceiling. What do you call that ceiling configuration comprised of individual adjustable tiles tilted in various directions? I want to build a setup like that and swap out panels as needed depending on the need for higher reflectivity or higher absorption. I'm going to start with all or mostly reflective panels made from OSB and use hooks and hanging wire. Tilt is adjustable by more or less wire at one end. (Unless someone has a better idea for hanging and adjusting such tiles.)

    What I'd like to know is, assuming an initial setup of 100% reflective tiles:

    1. What is a good size for these tiles? I'm thinking 2'x2' - this number based on nothing other than it being an easy size to physically handle. Will use a better number if someone suggests one based on acoustical criteria.

    2. What kind of pattern should these tiles be placed in? How far apart should these tiles be? If they line up edge-to-edge, it would be tricky to swap out individual tiles, so I'm thinking of placing them several inches apart. What angles should these tiles be with respect to each other?

    All this keeping in mind the nearly square shape of the room walls to minimize unwanted modes. This is not a control room, so critical monitoring is not a requirement. I just want to make this room a nice little live recording room with a pleasant ambiance and minimal flutter.

    I tried searching for information on such a ceiling configuration, but I could not think of what to call it, so I haven't found anything useful yet. I would appreciate any and all advice about such a ceiling.
     
  2. Damien Moody

    Damien Moody Active Member

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