Abstract: The present invention relates to a micro-electromechanical transducer comprising a pressure detecting arrangement adapted to detect generated pressure variations, and provide an output signal in response to the detected pressure variations, wherein the pressure detecting arrangement comprises a microphone cartridge and a signal processing unit; a pressure generating arrangement adapted to generate pressure variations in response to vibrations thereof; and a volume separating element comprising one or more openings, wherein the microphone cartridge is at least partly arranged in a first opening of the volume separating element in order to reduce the overall height of the micro-electromechanical transducer. The present invention further relates to a hearing device comprising a micro-electromechanical transducer.

Abstract: An armature having a U-shaped element having a first leg portion and a second leg portion and an attachment portion. The attachment portion has a first leg and a second leg and a central portion connected to the legs, such as an E-shaped portion, where the first leg portion is connected to the central portion. A transducer can include such armature.

Abstract: The present invention relates to a micro-electromechanical transducer comprising a pressure detecting arrangement adapted to detect generated pressure variations, and provide an output signal in response to the detected pressure variations, wherein the pressure detecting arrangement comprises a microphone cartridge and a signal processing unit; a pressure generating arrangement adapted to generate pressure variations in response to vibrations thereof; and a volume separating element comprising one or more openings, wherein the microphone cartridge is at least partly arranged in a first opening of the volume separating element in order to reduce the overall height of the micro-electromechanical transducer. The present invention further relates to a hearing device comprising a micro-electromechanical transducer.

Abstract: The present invention relates to a miniature speaker comprising a plurality of sound generating elements, wherein each sound generating element comprises a sound cavity and a moveable element associated therewith, wherein the moveable element comprises one or more cantilever beams configured to move said moveable element and thus generate sound pressure waves in response to an applied drive signal. The present invention further relates to a receiver assembly comprising the miniature speaker, and a hearing device comprising the receiver assembly.

Abstract: A miniature receiver including a first moveable diaphragm being acoustically connected to an intermediate volume, and a second moveable diaphragm being acoustically connected to the intermediate volume and a rear volume. The acoustic compliance of the intermediate volume is smaller than the acoustic compliances of the respective first and second moveable diaphragms. An associated method is also disclosed.

Abstract: The present invention relates to a miniature speaker comprising front and a rear volume, and one or more moveable diaphragms each comprising one or more cantilever beams, and associated one or more air gaps, arranged between the front and rear volumes, wherein the one or more cantilever beams are configured to bend or deflect in response to an applied drive signal, and wherein the one or more air gaps between the front and rear volumes remain essentially unaffected during bending or deflection of the one or more cantilever beams thus maintaining the acoustical leakage between the front and rear volumes at a minimum. The present invention further relates to a receiver assembly comprising such a miniature speaker, and to a hearing device, such as a receiver-in-canal hearing device, comprising such a receiver assembly.

Abstract: A miniature speaker having at least a first and a second resonance in its frequency response. The miniature speaker includes a diaphragm for generating sound pressure waves in response to electrical drive signals, one or more sound channels at least partly surrounding a total air volume forming an acoustical mass, and one or more intermediate air volumes being acoustically connected to the one or more sound channels. The acoustical mass provides that the second resonance in the frequency response of the miniature speaker is positioned within an audible range.

Abstract: The present invention relates to a miniature speaker comprising front and a rear volume, and one or more moveable diaphragms each comprising one or more cantilever beams, and associated one or more air gaps, arranged between the front and rear volumes, wherein the one or more cantilever beams are configured to bend or deflect in response to an applied drive signal, and wherein the one or more air gaps between the front and rear volumes remain essentially unaffected during bending or deflection of the one or more cantilever beams thus maintaining the acoustical leakage between the front and rear volumes at a minimum. The present invention further relates to a receiver assembly comprising such a miniature speaker, and to a hearing device, such as a receiver-in-canal hearing device, comprising such a receiver assembly.

Abstract: The present invention relates to a miniature speaker comprising a plurality of sound generating elements, wherein each sound generating element comprises a sound cavity and a moveable element associated therewith, wherein the moveable element comprises one or more cantilever beams configured to move said moveable element and thus generate sound pressure waves in response to an applied drive signal. The present invention further relates to a receiver assembly comprising the miniature speaker, and a hearing device comprising the receiver assembly.

Abstract: An assembly of a transformer and an electrostatic sound generator is especially efficient if the resonance frequency of the diaphragm is in the frequency range in which the generator is operated, such as in the interval of 1-20 kHz. Then, a smaller transformer with a winding ratio of 5000 or less may be used for feeding the sound generator, making the assembly suitable for hearing aid purposes or in-ear products such as for pro audio use.

Abstract: A receiver assembly including a receiver and an assembly housing. The receiver includes a sound outlet configured to outlet sound from the receiver. Furthermore, the receiver includes at least a first and a second outer surface and is arranged at least partly within the assembly housing. The assembly housing includes an assembly sound outlet arranged in communication with the sound outlet for outlet of sound from the receiver via the assembly outlet. The receiver assembly further includes a suspension structure having at least one suspension element, the suspension structure suspending the receiver in the assembly housing. The suspension element connects the receiver and the assembly housing, and the suspension element is formed by a sheet material and is an elongated element extending in an longitudinal direction and is configured to dampen vibration of the receiver by deflection of the suspension element in a direction transverse to the longitudinal direction.

Abstract: An armature having a U-shaped element having a first leg portion and a second leg portion and an attachment portion. The attachment portion has a first leg and a second leg and a central portion connected to the legs, such as an E-shaped portion, where the first leg portion is connected to the central portion. A transducer can include such armature.

Abstract: An E-shaped armature including a central, flat, elongate element for extending through the coil and magnet assembly of a transducer. The armature has two flaring sheets at one end for attachment to the transducer housing outside of a plane of the flat element and for facilitating the bending of the armature. A transducer may include the armature.

Abstract: A miniature receiver including a first moveable diaphragm being acoustically connected to an intermediate volume, and a second moveable diaphragm being acoustically connected to the intermediate volume and a rear volume. The acoustic compliance of the intermediate volume is smaller than the acoustic compliances of the respective first and second moveable diaphragms. An associated method is also disclosed.

Abstract: The present invention provides a receiver assembly comprising a receiver and an assembly housing. The receiver comprises a sound outlet configured to outlet sound from the receiver. The receiver is arranged at least partly within the assembly housing. The assembly housing comprises an assembly sound outlet. The sound outlet is arranged in communication with the assembly sound outlet for outlet of sound from the receiver via the assembly sound outlet. A vibration dampening element connects the sound outlet and the assembly sound outlet. The vibration dampening element is formed by an elastic foil and is compliant to reduce vibrations from the receiver to the assembly housing.

Abstract: A miniature speaker having at least a first and a second resonance in its frequency response. The miniature speaker includes a diaphragm for generating sound pressure waves in response to electrical drive signals, one or more sound channels at least partly surrounding a total air volume forming an acoustical mass, and one or more intermediate air volumes being acoustically connected to the one or more sound channels. The acoustical mass provides that the second resonance in the frequency response of the miniature speaker is positioned within an audible range.

Abstract: The present invention relates to an acoustical assembly extending in the x, y, and z directions, the acoustical assembly comprising first and second receiver units being spatially shifted relative to each other in the x direction thereby creating regions with free and available space, and one or more microphone units being positioned in the regions with free and available space. The present invention further relates to a hearing device comprising such an acoustical assembly.

Abstract: A receiver including a housing defining a chamber, and a motor assembly that includes a magnet assembly and an armature. The receiver includes a diaphragm operationally attached to the armature. The motor assembly is attached to the housing by a movable suspension structure. A method of reducing vibrations includes providing a housing defining a chamber, providing a motor assembly including a magnet assembly and an armature, providing a diaphragm, providing a movable suspension structure, attaching the diaphragm to the armature, and attaching the motor assembly to an inner wall of the housing by the movable suspension structure.

Abstract: A receiver assembly including a receiver and an assembly housing. The receiver includes a sound outlet configured to outlet sound from the receiver. Furthermore, the receiver includes at least a first and a second outer surface and is arranged at least partly within the assembly housing. The assembly housing includes an assembly sound outlet arranged in communication with the sound outlet for outlet of sound from the receiver via the assembly outlet. The receiver assembly further includes a suspension structure having at least one suspension element, the suspension structure suspending the receiver in the assembly housing. The suspension element connects the receiver and the assembly housing, and the suspension element is formed by a sheet material and is an elongated element extending in an longitudinal direction and is configured to dampen vibration of the receiver by deflection of the suspension element in a direction transverse to the longitudinal direction.

Abstract: An E-shaped armature including a central, flat, elongate element for extending through the coil and magnet assembly of a transducer. The armature has two flaring sheets at one end for attachment to the transducer housing outside of a plane of the flat element and for facilitating the bending of the armature. A transducer may include the armature.