A sound attenuation material includes a plurality of particles, each having a core and an elastic or compliant coating around the core, and a matrix surrounding the plurality of particles, the matrix being less dense than the core. A method of manufacturing sound attenuating materials includes adding an elastic or compliant coating to core particles and drying and/or curing the coating, mixing the coated core particles into a matrix material, and pouring the mixture into a mold. The core particles are denser than the matrix material.

Embodiments for sound and elastic-wave systems with fermionic quantum-like behavior and in particular to an approach for the phase-based encoding of information are disclosed.

Described herein is a coated building panel comprising an acoustical body comprising a first major surface and a side surface that intersects the first major surface, a coating applied to the first major surface, the coating comprising a polymeric binder, a pigment, and a hydrophobic component present in an amount ranging from about 1.0 wt. % to about 8.0 wt. % based on the total weight of the coating; and wherein the pigment and polymeric binder are present in a weight ratio ranging from about 3.5:1 to about 6.5:1.

The present invention relates to a sound absorber arrangement comprising multiple sound absorber elements that are arranged in a room having walls and a ceiling that closes off the room at the top. Multiple adjacently situated sound absorber elements form one or more absorber strips that extend(s), at least in sections, along an upper abutting edge extending between the wall and ceiling of the room. The sound absorber elements have a width of 200-400 mm and a thickness of 40-65 mm. The sound absorber elements have a length-specific flow resistance in the range of 5-20 kPa*s/m.sup.4. The invention further relates to a sound-insulated room having such a sound absorber arrangement.

Described herein is an acoustic building panel comprising a body comprising inorganic fiber in an amount ranging from about 60.0 wt. % to about 90.0 wt. % based on the total weight of the body; and microfibrillated fiber in an amount ranging from about 0.5 wt. % to about 10 wt. % based on the total weight of the body.

The present invention relates to a sound absorber arrangement comprising multiple sound absorber elements that are arranged in a room having walls and a ceiling that closes off the room at the top. Multiple adjacently situated sound absorber elements form one or more absorber strips that extend(s), at least in sections, along an upper abutting edge extending between the wall and ceiling of the room. The sound absorber elements have a width of 200-400 mm and a thickness of 40-65 mm. The sound absorber elements have a length-specific flow resistance in the range of 5-20 kPa*s/m.sup.4.

The invention further relates to a sound-insulated room having such a sound absorber arrangement.

A carriage is disclosed for moveably supporting an acoustical panel. The carriage comprises a frame having rolling members for movably for supporting the acoustical panel. A first and a second pair of support legs extend angularly from the frame for enabling a plurality of carriages to orientate acoustical panels in a linear or angular relationship. Each of the unique acoustical panels provides sound absorption as well inhibiting sound transmission.

A sound attenuation material includes a plurality of particles, each having a core and an elastic or compliant coating around the core, and a matrix surrounding the plurality of particles, the matrix being less dense than the core. A method of manufacturing sound attenuating materials includes adding an elastic or compliant coating to core particles and drying and/or curing the coating, mixing the coated core particles into a matrix material, and pouring the mixture into a mold. The core particles are denser than the matrix material.

A multifunctional ceiling structure, in particular for living spaces and workspaces, and includes multiple heat-conducting profiles that are directly or indirectly fastened to a building ceiling, and a downwardly directed mounting surface, with a line receiving region formed in the mounting surface. Furthermore, a heating medium line is provided that runs in the line receiving region of the heat-conducting profiles and conducts a heat-transporting medium. A ceiling panel is fastened to the mounting surface of the heat-conducting profiles and is in heat-conducting contact with the heating medium line. An absorber strip made up of sound absorber elements extends along an upper abutting edge that runs between a building wall and the plane of the ceiling panel. The sound absorber elements have a width of 200-400 mm, a thickness of 25-65 mm, and a length-specific flow resistance in the range of 8-10 kPa*s/m.sup.4.

Embodiments for sound and elastic-wave systems with fermionic quantum-like behavior and in particular to an approach for the phase-based encoding of information are disclosed.