A sound proof space, a ventilation system, and a method of ventilating a soundproof space, the ventilation system including at least one fan positioned at least one air inlet aperture or at least one air outlet aperture for sucking air therethrough and providing an air flow; at least one ventilation aperture for guiding air into the space to be ventilated; at least a first and a seconder air channel. The first and the second air channel are formed respectively into a single layer of a sandwich-type wall, roof or floor structure of the space to be ventilated; and the first and the second air channel are joined at one end thereof to form an indirect air path from the air inlet aperture to the ventilation aperture.

In the sound insulation apparatus, a sound wave transmitter configured to transmit sound waves with frequencies including the frequencies of propagation sound waves from a sound source and a sound wave receiver configured to receive the sound waves transmitted from the sound wave transmitter are coupled such that the orientation of a sound wave transmission surface of the sound wave transmitter and the orientation of a sound wave receiving surface of the sound wave receiver intersect each other and one pair set is formed. The one pair set is disposed in plurality such that the sound wave transmission surface of one set is spaced from and opposed to the sound wave receiving surface of another set and a space surrounding the sound source is formed. The sound waves transmitted from each of the sound wave transmitters are mixed with the propagation sound waves.

An enclosed space is provided that includes a ceiling, base structure, a plurality of walls, at least one sliding door, a controller, an input air fan and an air outlet. The height and inclination of the base structure are adjustable. The base structure has a first profile; a second profile; and one or more bolts for arranging a tilting angle between the first profile and the second profile. At least one of the walls include an opening for accessing the enclosed space. The door includes two parallel glass panels. The input air fan includes an air filter and the air outlet includes a flow meter configured to provide flow information to the controller.

A method for building a soundproof enclosure (10) in the form of an independent structure with acoustic properties for isolating noise and vibration is disclosed. The soundproof enclosure (10) comprised a plurality of acoustical wall panels (12) interconnectable each to another at opposing sides for enclosing an interior space (41) of various sizes. The soundproof enclosure (10) further comprised one or more modular multilayer ceiling unit(s) (13) assembled onto the top edges of the acoustical wall panels (12) to form the enclosure. The ceiling unit (13) comprised a plurality of ceiling layers (17), each ceiling layer (17) being vertically spaced apart with one another by brackets to topographically form the multiple guided spaces necessary for air flow circulation within the enclosure (10). These guided spaces can also house multiple implements such as circulation fan, air filter and sound silencer. Sound insulating material layer(s) are interposed between the contacting surfaces of the ceiling unit (13) and the acoustical wall panels (12) and/or all around the surfaces to isolate and decouple the ceiling unit (13) from the acoustical wall panels (12) from vibrations. A sound barrier cover (16a or 79) is interposed at the openings (25) of the air passages (24) to further reduce the sound level emitted into and exiting from the enclosure. In addition, a construction method by elevating the heavy acoustical wall panels (12) and the ceiling units (13) until they fall into precise assembly location for ease of assembly of the components of the enclosure (10) and a floor base unit 11 that enabled the enclosure (10) to about easily in whole is also disclosed. Furthermore, a method to ease assembly of the enclosure (10) by use of removable heavy-duty handles (87) is disclosed.

A panel for machinery enclosure, particularly for turbomachine enclosures. More specifically, a multilayered panel including several different layers each performing a specific function. In particular, the multilayered panel is capable to provide high levels of jet fire and fire/blast protection together with high performances in term of noise abatement with a lighter structure with respect to the panels of the prior art.

A booth that has an opening through which a user enters and exits the booth and a desk and a chair installed in a space surrounded by a floor and a side wall, the booth includes a movable sound insulation member that is installable to enclose the user in a case where the user is below a top portion of the booth while being in the booth.

Modular soundproof cabin (1), of the type comprising a perimeter wall (2) having perimeter panels (21, 22, 23, 24, 25), an upper ceiling (3) having ceiling panels (3a) and a lower floor (4) having floor panels (4a), where the panels (3a, 4a, 21, 22, 23, 24, 25) have acoustic insulation properties, where the perimeter panels (21, 22, 23, 24, 25) comprise frames (5) on their inner side, comprising intermediate horizontal struts (6) provided between horizontal lines (90, 91) of perimeter panels (21, 22, 23, 24, 25), and end horizontal struts (7) provided between the perimeter wall (2) and the upper ceiling (3) and lower floor (4); comprising mechanical fixation means, at least, between the frames (5) and the horizontal struts (6, 7), and between the ceiling panels (3a) and the floor panels (4a) and the end horizontal struts (7).

A structure formed with a frame structure and a sheet of material configured to reduce sound is wrapped around or otherwise surrounds the frame structure to form a hammock, basket, meditation pod, animal bed, snore reduction unit, wearable enclosure or other small structure, with an inner, sound limited or reduced volume. The sheet of material includes a base layer and at least one layer of sound-absorbing material, at least one layer of sound barrier material, or both, provided on or integral with the base layer. The sound limited or reduced volume includes an opening that may be closed or partially closed with a flap, canopy or hood. The flap, canopy or hood is preferably made of the same material at the sheet of material surrounding the frame.

A wall structure with a first dampening element (A) includes at least one layer (20,20a-c) configured to form an acoustic inner surface and/or to dampen sound; a first stopping element (B) including at least one layer (30) configured to stop sound; a second dampening element (C) including at least one layer (40,40′,50) configured to form an acoustic inner surface and/or to dampen sound; and a second stopping element (D) comprising at least one layer (60) configured to stop sound; wherein the layers of the first (A) and second (C) dampening element comprise porous and/or open cell material.

Thermally insulating fabric comprising a textile fabric layer which comprises fumed silica powder of average pore size 50 to 200 nm in an amount range of 1 to 70% w.