An example acoustic tile is disclosed having a structure with at least one layer. A plurality of openings are formed in the at least one layer of the structure. The openings are configured to direct sound waves hitting the structure in multiple different directions through the at least one layer to absorb a majority of the sound waves and inhibit the sound waves hitting the structure from reflecting off of the structure. In an example, the openings are juxtaposed, different sizes, different orientations, and/or different numbers of openings on separate layers.

A wall-mounted acoustic deadening device includes a mounting device including a mounting plate and a mounting peg extending from the mounting plate and having a first portion adjacent the mounting plate with a first diameter and a second portion opposite the mounting plate having a second diameter smaller than the first diameter. The device also includes at least two panels, each panel including a plurality of panel holes. A panel hole diameter is less than the first diameter and greater than or equal to the second diameter. A first panel is configured to be attached to the mounting device via the mounting peg extending through one of the plurality of panel holes. A second panel is configured to be attached to the mounting device adjacent to the first panel via the mounting peg extending through the one of the plurality of panel holes.

A perforated sound-absorbing plate includes a perforated plate as a base material in which a large number of through holes are formed. A coating film is provided on an inner wall surface of the through hole, and a through-hole portion whose volume is smaller than a volume of the through hole is formed by the coating film.

A composite structure for improving the acoustical properties of a low NRC membrane including a sound absorbing layer and a porous, scrim covered, perforated drywall layer.

An example acoustic tile is disclosed having a structure with at least one layer. A plurality of openings are formed in the at least one layer of the structure. The openings are configured to direct sound waves hitting the structure in multiple different directions through the at least one layer to absorb a majority of the sound waves and inhibit the sound waves hitting the structure from reflecting off of the structure. In an example, the openings are juxtaposed, different sizes, different orientations, and/or different numbers of openings on separate layers.

Provided is a soundproof structure including a film-shaped member which has a plurality of through-holes penetrating in a thickness direction, in which in a hole radius distribution histogram function (r), in a case where the hole radius at which an opening ratio is maximum is denoted by r.sub.0, a total opening ratio of all the through-holes is denoted by .sub.sum, and a thickness of the film-shaped member is denoted by t, an acoustic impedance Z.sub.0 of the film-shaped member represented by the following Expression (1) satisfies the following Expression (2) and the hole radius distribution histogram satisfies the following Expression (3).

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Some embodiments of present disclosure are directed to a micro-perforated glass or glass-ceramics laminate, comprising a first substrate laminated to a second substrate by a first polymer interlayer, wherein the first and the second substrates are independently selected from glass or glass-ceramics, and a plurality of micro-perforations, each of the plurality of micro-perforations extending through the first substrate, the first polymer interlayer, and the second substrate. Some embodiments are directed to methods of forming such micro-perforated glass or glass-ceramics laminates.

A composite structure for improving the acoustical properties of a low NRC membrane including a sound absorbing layer and a porous, scrim covered, perforated drywall layer.

A perforated sound-absorbing plate includes a perforated plate as a base material in which a large number of through holes are formed. A coating film is provided on an inner wall surface of the through hole, and a through-hole portion whose volume is smaller than a volume of the through hole is formed by the coating film.

Certain example embodiments relate to an acoustic wall assembly that uses active and/or passive sound reverberation to achieve noise-disruptive functionality, and/or a method of making and/or using the same. With the active approach, sound waves in a given frequency range are detected by a sound masking circuit. Responsive to detection of such sound waves, an air pump (e.g., speaker) is used to pump air in the wall assembly to actively mask the detected sound waves via reverberation and/or the like. The wall assembly may include one, two, or more walls, and the walls may be partial or full walls. With the passive approach, sound waves in a given frequency range are disrupted via features (e.g., holes, slits, etc.) formed in and/or on a wall itself. These techniques may be used together or separately, in different example embodiments.