Aspects of the disclosure include systems, methods, and program products for evaluating the condition of a component using an acoustic sensor embedded within a lighting device. A system according to the present disclosure can include a first lighting device configured to illuminate an area of an industrial plant; a first acoustic sensor embedded within the first lighting device and configured to detect an acoustic signature of a component in the industrial plant; a computing device communicatively connected to the first acoustic sensor and configured to evaluate a condition of the component in the industrial plant based on the acoustic signature.

An article of footwear that produces an audio component for a performance includes a rigid heel assembly that attaches to the article of footwear. The rigid heel assembly has a cavity with an open end. The cavity houses an audio transmission assembly that includes a transmitter. A microphone converts the audio component of the performance into a digital audio signal and is operatively connected to the audio transmission assembly which wirelessly transmits the digital audio signal of the audio of the performance.

A system may comprise a speaker in a speaker tube; a directional tube having a proximal end openly connected to the speaker tube; a first plate having an opening aligned with a distal end of the directional tube; a diaphragm in a spaced apart relationship with the first plate such that an air enclosure is formed between the diaphragm and the first plate, wherein the air enclosure, the directional tube, and the speaker tube cooperate to form a static-air space such that air pressure changes in the space produced by the at least one speaker move the diaphragm; a second plate in a spaced apart relationship with the diaphragm such that a gas enclosure is formed between the diaphragm and the second plate; wherein movement of the diaphragm moves gas in the gas enclosure through the second plate thereby modulating flames above the second plate when the gas is ignited.

A camera controller is configured to control a camera through voice commands. The camera controller includes drain mechanisms that allow the camera controller to be used in environments in which the camera controller is exposed to fluids. The camera controller device comprises a housing body with an outer surface including a first opening and a second opening. A first channel extends from the first opening into the housing body and to a cavity in which a microphone is located, enabling audio signals entering the first opening to be captured by the microphone. A membrane is located between the first channel and the microphone to create a waterproof seal over the microphone. A second channel extends from the first channel to the second opening to create a drain such that fluid entering from the first opening can flow from the first channel through the second channel and out the second opening.

A system and method for an accent lighting system is provided. The system includes a plurality of underwater luminaires each having a plurality of light emitting diodes, and a junction box controller housing a plurality of electrical components for generating electrical signals for controlling the plurality of underwater luminaries. The junction box controller can be mounted to an electrical conduit and a plurality of cables can connect the plurality of underwater luminaires with the junction box controller. An underwater luminaire can include a heat sink and a flexible circuit board having a plurality of light emitting diodes mounted on the heat sink. The flexible circuit board transfers heat from the light emitting diodes to the heat sink. The underwater luminaire can also include a wiring harness for connecting the underwater luminaire to a cable.

An electronic device such as a voice-controlled speaker device may have a housing characterized by a vertical longitudinal axis. A flexible substrate such as a flexible mesh substrate with component support regions coupled by flexible segments may be wrapped around the housing and the vertical axis. The housing may have surface regions with compound curvature. The flexible substrate may conform to the regions with compound curvature. A fabric spacer layer may be interposed between the flexible substrate and the housing. Electrical components such as input-output devices may be mounted to the component support regions. A display may be formed from an array of light-emitting devices that are mounted on respective component support regions. Light from the light-emitting devices may pass through the fabric spacer layer toward the housing and back out away from the housing. An outer fabric layer may cover the mesh.

A display apparatus may include a display panel including a display area configured to display an image, and a non-display area, an optical module on a rear surface of the display panel, at least one first sound generator on a rear surface of the optical module, and at least one second sound generator in the non-display area and between the display panel and the optical module.

The present disclosure discloses an acoustic output apparatus including at least one acoustic driver, a controller, and a supporting structure. The at least one acoustic driver may be configured to output sounds through at least two sound guiding holes. The at least two sound guiding holes may include a first sound guiding hole and a second sound guiding hole. The controller may be configured to control a phase and an amplitude of the sounds generated by the at least one acoustic driver using a control signal such that the sounds output by the at least one acoustic driver through the first and second sound guiding holes have opposite phases. The supporting structure may be provided with a baffle and configured to support the at least one acoustic driver such that the first and second sound guiding holes are located on both sides of the baffle.

A backrest for a vehicle seat may have a backrest part, a head restraint part and an acoustic arrangement. The acoustic arrangement is arranged above the backrest part and may have at least one central loudspeaker and at least two side loudspeakers. The central loudspeaker may be built into the head restraint part and each of the at least two side loudspeakers may be arranged on a support. A vehicle seat with the backrest is also provided.

A side-strap structure for a head-mounted device is disclosed. The side-strap structure comprises an outer strap shell, a strap, a middle strap shell, a bottom strap shell and a strap locker; the bottom strap shell is rotatably fixed to a main body of the head-mounted device through the strap locker, the middle strap shell is fixed between the outer strap shell and the bottom strap shell, and one end of the strap is fixed between the outer strap shell and the middle strap shell; and an accommodating slot for placing a loudspeaker is provided on an inner side of one end of the bottom strap shell, the middle strap shell is hermetically connected to the bottom strap shell after the loudspeaker is placed into the accommodating slot, and a sound emitting hole of the loudspeaker is provided on an outer side of the other end of the bottom strap shell. The side-strap structure according to the present disclosure does not only have the function of a strap for a head-mounted device, but also has the function of external sound playing. Moreover, it is compact in structure and small in volume.