A method for manufacturing a hearing device is disclosed. The hearing device comprises a speaker, a first chamber, and a sound channel arranged between the first chamber and the surroundings of the hearing device or a second chamber. An element of a thermoplastic material being in a solid state is arranged in the sound channel. A laser light is applied to the element to thereby activate the element to change from the solid state to a liquid state. The element then changes from the solid state to the liquid state filling out a cross-section of the sound channel and thereby sealing the sound channel. Finally, cooling of the element is allowed leading to a change of the element from the liquid state to solid state while filling out the cross-section of the sound channel.

An earbud with a housing comprising a housing outer wall and an electromagnetic radiation-transmissive lens in the housing outer wall. The housing outer wall and the lens are co-molded.

A membrane for an electro-acoustic transducer comprised of at least one elastomer layer made using spray coating of a liquid elastomer solution is provided. The at least one layer of elastomer is made by spraying a liquid elastomer solution, which may comprise a silicone, onto a mold having the desired membrane geometry, allowing the solution to cure and remove the membrane from the mold. The mold can be configured to hold other components of an electro-acoustic transducer that will be attached to the membrane after the curing step.

This invention provides a speaker cabinet, and the aforementioned speaker cabinet includes a containment space within; multiple reinforcing rib connectors pass through the space between the two faces on the inside of the aforementioned containment space with the largest area; when these two faces start moving towards or away from each other, the reinforcing rib connectors provide resistance in the opposite direction of the movement; the aforementioned cabinet and reinforcing rib connectors are created in one piece via extrusion blow moulding. The invention provides a speaker cabinet, where the total capacity of the cabinet can remain unchanged during use, and the cabinet is very light-weight, and the inner walls of the cavity are also very thin. Completely fulfils sound quality and portability requirements.

A method of manufacturing a membrane for an electro-acoustic transducer through spray coating of a liquid elastomer solution is provided. The method includes spraying the liquid elastomer solution, which may comprise a silicone, onto a mold having the desired membrane geometry, allowing the solution to cure and remove the membrane from the mold. The mold can be configured to hold other components of an electro-acoustic transducer that will be attached to the membrane after the curing step. Also provided is a membrane for an electro-acoustic transducer comprised of an elastomer and made using spray coating of a liquid elastomer solution.

An earbud with a housing comprising a housing outer wall and an electromagnetic radiation-transmissive lens in the housing outer wall. The housing outer wall and the lens are co-molded.

A method for producing a plastic-coated loudspeaker housing comprises the putting together of a loudspeaker housing from a plurality of housing wall elements. The put-together loudspeaker housing is placed in a mold. This is followed by a surface coating of the put-together loudspeaker housing by introducing a liquid, curable plastic into the mold.

A method for joining sides of a speaker enclosure includes affixing a speaker grill element to a substructure element, where the speaker grill element has a depth that is shorter than its length and width, includes a first surface and a second surface parallel to each other, and includes hole openings, where the substructure element has a depth that is shorter than its length and width, includes protrusions above its front surface, and includes openings larger than the openings in the speaker grill element, and where the speaker grill element is aligned lengthwise to a first plane, inserting the joined speaker grill element and substructure element into a mould, where in combination with portions of the speaker grill element and the substructure element, a surface of the mould forms a mould cavity, and injecting molten plastic into the mould cavity to form an injection moulded side element.

The invention discloses a manufacturing method of a speaker vibrating diaphragm by controlling a ratio of fiber materials, the method comprising the steps of: (A) fabric provision: providing a fabric interwoven by a plurality of warps and a plurality of wefts; (B) impregnation: impregnating the fabric in a resin solution; (C) drying: drying the fabric impregnated with resin solution; (D) formation: pressing the dried resin-impregnating fabric to form a predetermined shape; and (E) cutting: cutting the formed speaker vibrating diaphragm from the fabric. Each of the plurality of warps and each of the plurality of wefts of the fabric has an individual yarn count and material composition. By controlling a combination of the yarn counts of the plurality of warps and the plurality of wefts, a total number of threads and a material composition ratio of the warps and wefts required for the vibrating diaphragm are achieved.

A system and method for automating the making of molded articles formed from a substrate and a fabric material, wherein the fabric material is positioned over a mold surface and a substrate material is injected between the fabric material and the mold surface such that the substrate material hardens and bonds with the fabric material forming the molded article.