A piezoelectric sound-generating component case that includes a case body for housing a vibrating plate and insert terminals that are provided in the case body for applying a voltage to the vibrating plate. The case body includes a bottom or base and a side wall that projects from the peripheral edge of the bottom. The case body is provided with an opening that opens on the leading end side, in the projection direction, of the side wall. The side wall has thick parts at least on the sides where the insert terminals are provided. In a plan view of the case body, the transverse direction width of the thick parts of the side wall is larger than the transverse direction width of the parts of the side wall that are adjacent to the thick parts.

A ported speaker assembly includes an outer enclosure having a front opening. An inner frame of the speaker assembly is positioned at least partially within the outer enclosure and has an outer perimeter edge proximate the front opening of the outer enclosure. A resonator chamber is defined between an interior of the outer enclosure and an exterior of the inner frame. At least one speaker driver is mounted to the inner frame and configured to emit sound from a front end of the ported speaker assembly. A perimeter port is formed between the outer perimeter portion of the inner frame and the front opening of the outer enclosure. The perimeter port extends uninterrupted to encircle the outer perimeter portion. A plurality of fastener joints secure the inner frame to the outer enclosure, and at least some are distributed around multiple sides of the inner frame and positioned closer to the front opening of the outer enclosure than a rear end of the inner frame.

A loudspeaker comprises an enclosure, at least one dynamic driver mounted in the enclosure, and at least one porous monolithic block. The at least one porous monolithic block comprises a plurality of pores and is mounted within the enclosure.

A portable instrument amplification system includes a cabinet having a top cabinet member, a bottom cabinet member, and a plurality of side cabinet members. The portable instrument amplification system also includes at least one sealed chamber having a front chamber member, a side chamber member, a rear chamber member, at least one speaker driver, at least one side passive radiator, and at least one cabinet bracing secured in at least one corner of the sealed chamber. The cabinet bracing includes a cabinet bracing body, and at least one stiffener attached to the cabinet bracing body. The portable instrument amplification system also includes at least one front-facing port having a rear port member vertically attached between the side chamber member and a second side cabinet member behind the at least one side passive radiator, and a bass phase plug vertically disposed facing the at least one side passive radiator.

The present document describes a textile-assembly toolkit for reversible assembly of a textile to an electronic-speaker device. The toolkit includes multiple attachment features, including rigid features with matched purposefully-designed knit types that can be combined to enable repeatable, mass-producible, reversible assembly of the textile to the electronic-speaker device. The techniques described herein enable accurate alignment of the textile on the electronic-speaker device without distorting the textile's cosmetic pattern and in a manner that results in no visible edges of the textile or visible attachment features on the exterior of the electronic-speaker device. Also, the textile-assembly toolkit includes attachment features that secure the textile with sufficient tension to avoid acoustic distortion such as rub and buzz.

Provided is a display device. The display device includes a display panel including two long sides extending in a first direction and two short sides extending in a second direction, a first sound generator on a first area of one surface of the display panel, the first sound generator outputs a first sound by vibrating the display panel, a second sound generator on a second area of the one surface of the display panel, the second sound generator outputs a second by vibrating the display panel, a bottom frame on the one surface of the display panel, and a first blocking member between the one surface of the display panel and the bottom frame and along edges of the display panel, the first blocking member includes at least one opening.

A speaker includes a frame and a partition wall coupled with the frame to form a boundary between an inner chamber and an outer chamber. The frame has an annular sidewall and a top wall. The annular sidewall has a plurality of through holes allowing the inner chamber and the outer chamber in fluid communication.

A low-frequency loudspeaker is provided comprising an enclosure having a front, a back and a sidewall. An audio speaker is mounted in an opening in the front of the enclosure. The audio speaker has a diaphragm for producing front sound waves that are transmitted outwardly from the diaphragm and back sound waves that are transmitted into the enclosure from the diaphragm. A spiral waveguide is positioned within the enclosure. The spiral waveguide has a first end proximal to the speaker diaphragm for receiving the back sound waves and extends outwardly therefrom in a spiral pattern to a second end that forms a low-frequency terminus exit port opening in the sidewall.

The present disclosure discloses an earphone. The earphone may include a hook-shaped component, a connecting component, and a holding component. When the earphone is in a wearing state, the hook-shaped component may be configured to hang between a rear side of an ear of a user and a head of the user. The holding component may be configured to contact a front side of the ear. The connecting component may be configured to connect the hook-shaped component and the holding component and extend from the head to an outside of the head to cooperate with the hook-shaped component to provide the holding component with a pressing force on the front side of the ear.

A vehicle includes: a housing; a passive radiator disposed on a rear surface of the housing; an active speaker disposed on a front surface of the housing and configured to output a virtual engine sound; a partition wall disposed inside the housing such that one side is in contact with the left side surface of the housing and the other side is in contact with the right side surface of the housing; a driver configured to move and rotate the partition wall; and a controller configured to control the driver based on at least one of a transmission position of the vehicle and a speed of the vehicle.