A binding tape exhibits high sound absorbing performance and suppressed breaking of the tape during the binding work. The binding tape includes a substrate layer of a nonwoven fabric and an adhesive layer that contains an adhesive and that is provided on at least either surface of the substrate layer, where: the nonwoven fabric is formed from fibers at least partially containing a thermoplastic elastomer; and the nonwoven fabric has a tensile breaking strength in the tape longitudinal direction (A1) of 20 N/10 mm or more.

A binding tape exhibits high sound absorbing performance and suppressed breaking of the tape during the binding work. The binding tape includes a substrate layer of a nonwoven fabric and an adhesive layer that contains an adhesive and that is provided on at least either surface of the substrate layer, where: the nonwoven fabric is formed from fibers at least partially containing a thermoplastic elastomer; and the nonwoven fabric has a tensile breaking strength in the tape longitudinal direction (A1) of 20 N/10 mm or more.

A sound absorbing panel assembly comprising the woven basalt material. The sound absorbing panel assembly comprises a height, a width, a length, a cover and an absorbent panel. The cover comprises a woven basalt material. The absorbent panel comprises a sound absorbent acoustic panel. The absorbent panel is covered by the cover.

A sound absorbing panel assembly comprising the woven basalt material. The sound absorbing panel assembly comprises a height, a width, a length, a cover and an absorbent panel. The cover comprises a woven basalt material. The absorbent panel comprises a sound absorbent acoustic panel. The absorbent panel is covered by the cover.

A material reduction machine includes an infeed portion operable to receive material to be reduced, and a cutting mechanism operable to reduce material fed in from the infeed portion. An outlet chute has a first end operable to receive the material reduced by the cutting mechanism and a second end operable to discharge the reduced material from the machine, wherein the outlet chute extends along a curved path. The outlet chute includes, along a radially-inner side of the curved path, a foraminous interior wall providing communication with a sound attenuation layer.

A material reduction machine includes an infeed portion operable to receive material to be reduced, and a cutting mechanism operable to reduce material fed in from the infeed portion. An outlet chute has a first end operable to receive the material reduced by the cutting mechanism and a second end operable to discharge the reduced material from the machine, wherein the outlet chute extends along a curved path. The outlet chute includes, along a radially-inner side of the curved path, a foraminous interior wall providing communication with a sound attenuation layer.

Disclosed is a pneumatic tire including a film attached to an inner liner, and a plurality of porous sound absorbing members attached to the film and arranged at a predetermined interval. According to the pneumatic tire, occurrence of resonance noise in the tire may be reduced.

Disclosed is a pneumatic tire including a film attached to an inner liner, and a plurality of porous sound absorbing members attached to the film and arranged at a predetermined interval. According to the pneumatic tire, occurrence of resonance noise in the tire may be reduced.

A microphone assembly for a vehicle headliner includes a housing arranged to be received within a substrate layer of the headliner and having an upper portion and a lower portion. A circuit board is mounted in the upper portion and has a microphone element coupled thereto. An insert bracket includes a base and a shaft member extending upwardly therefrom, the base having a plurality of apertures aligned with the shaft member, wherein the shaft member engages the lower portion to connect the insert bracket to the housing. A sealing gasket having at least one channel defining an air path extending therethrough is arranged to be received within the shaft member and extend between the base and the upper portion, providing acoustic sealing between the insert bracket and the housing such that the air path directs sound from a cabin of the vehicle through the apertures to the microphone element.

Methods and apparatus for a sound reducing mask wearable by a user according to various embodiments may include a body portion contoured to form a seal with the user’s face when the body portion is placed over the user’s mouth. The sound reducing mask may also include an air intake assembly including an inlet and a unidirectional flap configured to move between an open position and a closed position. Methods and apparatus for a sound reducing mask may further include a muffler configured to muffle noise made by the user.