Abstract: Sound speaker and methods to make various types of a sound speaker for a user. One embodiment is a method of making a sound speaker. A second embodiment is a sound speaker to use with different media in the environment.

Abstract: A device comprises a housing, an acoustic component coupled to an exterior of the device through an acoustic passage in the housing, and an actuated mechanism operable to close the acoustic passage between the acoustic component and the housing. The actuated mechanism is operable to close the acoustic passage in response to a control signal, where the control signal is indicative of a pressure differential transmittable from the exterior of the device through the acoustic passage to the acoustic component.

Abstract: A rotary reciprocating acoustic transducer for producing sound in response to an applied electrical signal has a ported tubular housing having a generally cylindrical chamber with an interior lumen which is generally symmetrical about a central axis and opposing first and second linear reciprocating electrodynamic motors mounted over the tubular housing member's first and second open end, with a reciprocating rotatable transducer vane assembly with first and second rotating vanes projecting radially away from a central, axially aligned shaft driven by the first and second linear reciprocating motors.

Abstract: One embodiment of the invention discloses an acoustic device having a housing and a speaker unit accommodated in the housing. The speaker unit forms a front volume and a back volume together with the housing. The housing includes an extra volume communicating with the back volume and a sound channel communicated with the front volume. The extra volume is isolated from the sound channel. The invention provides an acoustic device with enlarged back volume for improving low frequency sound quality.

Abstract: Systems and methods are provided for a media device docking station having one or more acoustic channels to transfer sound to or from the media device while the media device is docked with the docking station.

Abstract: A speaker system includes a case having a receiving chamber; a variable mechanism received in the receiving chamber for dividing the receiving chamber into a first chamber and a second chamber and being capable of varying a volume of the first chamber; and a speaker unit is received in the first chamber and defining an acoustic port facing an exterior of the case. The separating wall alternatively inserts into one of the receiving member for placing the separating wall precisely at specific locations. Thus, it is easy to vary the volume of the first chamber for achieving an excellent acoustic capability of the speaker system.

Abstract: In the invention a speaker apparatus acoustically combines the earpiece and hands free functions. Thus a speaker has acoustically separated functions for acting as the earpiece and as the hands free. The speaker apparatus has a back cavity having an outlet so that the damped sound of the outlet operates as the earpiece. The front of the speaker apparatus operates as the louder hands free.

Abstract: A computing device comprises a platform and an audio receiver component. The audio receiver component is provided on a front side of the platform and is oriented to emit sound out of the front of the housing. A gap volume adjacent to the audio receiver is defined by the front side of the platform and the front façade of the housing. The gap volume supports audio output from the audio receiver component. A first air channel is defined by a combination of (i) a through-hole in the platform at the gap volume, and (ii) an opening in a back façade of the housing.

Abstract: A loudspeaker grille is disclosed. In accordance with one example, a loudspeaker grille includes a louver arrangement to be arranged in front of a chassis of a loudspeaker to protect membrane and suspension thereof. The louver arrangement includes a first and a second louver arranged on opposing sides of a center plane. Both louvers include a plurality of fins which are arranged slanted with respect to the center plane and which are spaced such that a clearance is provided between projections of neighboring fins to the center plane. The fins of the first louver are inversely slanted to the fins of the second louver. Further, the fins of the first louver are shifted in a lateral direction within the to center plane with respect to the fins of the second louver.

Abstract: Disclosed is a portable audio device and a quick-disconnect passive acoustic cover. The portable audio device includes a housing and a speaker supported by the housing that have a first system frequency response. The speaker of the portable audio device has a first side and a second side associated with a first audio port and a second audio port, associated with a first acoustic load and a second acoustic load respectively. The housing is configured to removably receive the cover which is configured to redefine at least one of the first acoustic load and the second acoustic load to replace the first system frequency response with a second system frequency response. The cover provides one or more additional surrounding structures, which replace the inherent frequency response with an improved frequency response. Different embodiments of the disclosed cover provide a plurality of sound quality enhancement options to a user.

Abstract: A system and methods for implementing substantially triangular or trapezoidal speaker enclosures and related components. A speaker enclosure may be shaped substantially as an equilateral triangle, loaded with three speakers mounted radially equidistant from the planar center of the triangular enclosure. The speaker enclosure may comprise a triangular port with a detachable lid. A speaker enclosure also may be shaped substantially as a box with an interior triangular subchamber. The speaker enclosures may further include an amplifier system having a novel input gain stage or a novel tone stack, or both. An amplifier system also may comprise parallel audio input processing through input gain modules and tone stack modules, with the separate audio signals summed by a novel mixdown module.

Abstract: A portable apparatus including a main body and a receiver is provided. The main body has a surface, an active sound hole and a passive sound hole. The active sound hole and the passive sound hole are both disposed at the surface of the main body. The receiver is disposed inside the main body and arranged for emitting a first sound wave and a second sound wave with the same amplitude and frequency but opposite transmission directions. The first sound wave is transmitted out of the main body via the active sound hole and the second sound wave is guided in the main body and transmitted out of the main body via the passive sound hole.

Abstract: A portable full duplex communication device (100) is provided with improved acoustic porting (114) by providing an earpiece enclosure (108) within the housing (102) of device. The earpiece enclosure (108) includes an array of micro-ports (114) formed to provide optimal low frequency response and echo performance without the use of external acoustical leak ports to the housing.

Abstract: One embodiment of the invention discloses a speaker box having a housing and a speaker accommodated in the housing. The speaker includes a sound radiation surface for generating sound. The housing includes a first and second output ports disposed at one side of the housing for transmitting the sound to outside of the speaker box. The housing includes a plurality of ribs disposed therein and forming a bending channel. The first and second output ports are disposed at two ends of the bending channel. The bending channel is divided into a front channel and a back channel by the speaker. The speaker box is capable of obtaining a better low frequency sound reproduction quality.

Abstract: This is directed to several handheld device components to be placed in a handheld device, as well as methods or systems for mounting or retaining components within the device. In particular, this is directed to a rigid shield used in an SMT process and securing connected flex connectors by adhering the flexes together. This is also directed to using foam in combination with a hard material to create an acoustic seal, or several layers of foam to create an acoustic and mechanical seal. This is also directed to selectively folding a sheet of material placed around a battery cell.

Abstract: An audio system includes a passive radiator that is attached to one end of a lever arm. The other end of the lever arm is attached to a mass that serves to move out of phase of the passive radiator to cancel mechanical vibrations of the passive radiator, but without significantly affecting audio output. The lever arm is attached to a mechanical ground, which may be the enclosure on which the passive radiator is mounted. A system may use multiple lever arms to reduce rocking of the passive radiator.

Abstract: Provided is a technique for improving frequency characteristics by an acoustics-related method so that a sound is heard with natural frequency characteristics when a sound-isolating earphone is fitted in a human ear. A sound-isolating earphone is provided with two or more electroacoustic transducers, wherein independently generated sound waves are passed through isolated sound leading pipes and are mixed just before an entrance of an external auditory canal, and a sound wave of which is twice the difference between path lengths of the two sound leading pipes is attenuated. This serves to provide an easy-to-hear improved sound quality by suppressing the sound wave at around 6 kHz that is transmitted with characteristically high intensity in a sound-isolating earphone.

Abstract: A high fidelity, low-profile loudspeaker assembly includes an enclosure having a rear panel which is highly thermally conductive. At least one speaker driver is mounted in the enclosure, the driver including a forwardly facing diaphragm driven by a voice coil former carrying a voice coil, and a rearwardly extending motor structure. An aperture is provided in the rear panel to receiving the driver's motor structure, and a thermally conductive gasket seals the rear panel aperture around cup to provide a thermal path from the driver motor to the rear panel for cooling the driver. On one driver embodiment, a generally dome-shaped annular spider surrounds and supports the voice coil former, the spider being connected at its inner periphery to the approximate vertical midpoint of the voice coil former.

Abstract: Apparatus for compensating for pressure changes in an acoustic transducer system includes a skeleton member having a predetermined configuration and adsorbent material having a regular structure and being supported on the skeleton member. The apparatus may include a plurality of members, each of the plurality of members having a plurality of hollows formed therein, at least one main surface of each of the plurality of members substantially facing and spaced apart from a main surface of an adjacent one of the plurality of members, and the adsorbent material may be provided within each of the plurality of hollows.

Abstract: An apparatus includes a simulated medicament delivery device and an electronic circuit system. The simulated medicament delivery device includes a housing, and is devoid of a medicament delivery mechanism that causes a medicament to be delivered. The electronic circuit system is coupled to the housing and includes an audible output device and a cover. The housing of the medicament delivery device and the cover of the electronic circuit system collectively define an acoustic enclosure. The audible output device is configured to be disposed within the acoustic enclosure.

Abstract: The disclosure relates to a concealed speaker system, specifically a system that is not readily visible in a room. The speaker system is comprised of a base frame that is adapted to be mounted between support members of a wall. The concealed speaker system further has a speaker assembly mounted to the base frame and an active member formed of PVC that has an outer surface which is substantially coplanar with the surrounding wall section, and in one form extends slightly outward therefrom. The base frame, speaker assembly, and the active member cooperate to form an acoustic chamber that is positioned behind the inner surface of the active member. Acoustic energy is transferred from the speaker assembly to the active member where the sound is produced therefrom to the room.

Abstract: An acoustic adaptive noise generating device in the form of a flat panel loudspeaker is suitable for increasing people's powers of concentration in acoustically difficult surroundings. The adaptive noise generating device includes a carrier panel, an actuator arranged on the carrier panel. A control device is connected to the actuator and permits adjustment of noise signals emitted by the actuator.

Abstract: A telescopic loudspeaker includes an extendable telescopic body (1) responsible for housing a loudspeaker (2) for generating sound from a input audio signal and for creating a inner resonance chamber (2) of volume V0 when the telescopic body (1) is retracted and of volume V1 when the telescopic body (1) is extended, V1>V0 being met. The telescopic body (1) includes a support base (15); of hollow bodies (11,12,13) with decreasing transversal sections and coupleable to one another, the section decreasing progressively from the body (11) closest to the base (15) up to the body (13) furthest from the base (15); and a gasket (8) between each pair of consecutive bodies (11,12,13) of the telescopic body (1) for sealing the air chamber inside the enclosure of the telescopic loudspeaker.

Abstract: An audio system includes a housing and an acoustic exit that exits the housing, and has a configuration that facilitates the grasping of the housing with a plurality of fingers from a single human hand. The acoustic exit is located adjacent an exterior surface of the housing such that the shape of the exit together with the exterior surface facilitates grasping of the housing with a plurality of fingers and the thumb from the single human hand and the acoustic exit exits a back surface of the housing such that the plurality of fingers can be inserted into the exit while the thumb of the same hand can rest on at least one of the top surface and the front surface of the housing.

Abstract: Systems, methods, and devices for improving speaker performance with an acoustic damped port are disclosed. In accordance with various embodiments of the present invention, a damping material is placed around a vented frame of a speaker driver, and substantially covers or fills the vents of the frame. In some embodiments, the damping material results in improved impedance matching with acoustic delay, without required dimensional tuning (as with conventional ports). In some embodiments, it also reduces the air velocity gradients minimizing higher order frequency distortion components. In some embodiments, the damping material also acts as an absorber of energy by coupling to the sound wave. In some embodiments, low-frequency performance is improved in a small-scale design.

Abstract: Disclosed is a panel-form loudspeaker. The panel-form loudspeaker includes a resonant mode sound radiating panel, a case with a vibrating plate attached on the sound radiating panel, and a number of transducers separated from each other for forming a vibration and connected with the vibrating plate for transferring the vibration to the vibrating plate to cause the sound radiating panel to resonate and radiate an acoustic output. The vibrating plate has a number of vibrating portions mounting on the sound radiating panel and spaced from each other for fixing the transducers and a number of bending portions extending from the vibrating portions away from the sound radiating panel.

Abstract: A loudspeaker module includes a housing having a plurality of side walls and a cover plate positioned over a top surface of the plurality of side walls, a bottom of the housing remaining open. A driver mounting plate is secured to the plurality of side walls and divides the housing into an upper compartment and a lower compartment. At least one of the plurality of side walls includes an aperture linking the lower compartment to the external environment surrounding the housing. A driver is mounted to the driver mounting plate, the driver being positioned to fire into the lower compartment of the housing. A mounting bracket is secured to the at least one of the plurality of side walls including an aperture.

Abstract: A wireless mobile electronic device includes a first housing and a first acoustic chamber disposed within the first housing. A sound generator, within said first housing, is acoustically coupled to the first acoustic chamber. Additionally, a first acoustic port defines an opening into the first acoustic chamber. The acoustic port includes a first mating structure configured for mating with a second mating structure of a second acoustic chamber, exclusive of said first housing.

Abstract: An exemplary electronic device includes a box, a speaker, and a micro structure. The box includes a shell and a cover disposed on the shell. The speaker is sandwiched between the shell and the cover. The micro structure includes a plurality of flat-bottomed protruding portions, a plurality of first pyramidal protruding portions, and a plurality of second pyramidal protruding portions.

Abstract: A loudspeaker system according to the present invention includes a cabinet, a loudspeaker unit attached to an opening formed in the cabinet, a gas adsorber provided in the cabinet and operable to physically adsorb gas in the cabinet to equivalently increase a volume of an inside of the cabinet, and a dehumidifier attached to an opening formed in the cabinet and operable to discharge damp air in the cabinet to the outside when a DC voltage is applied thereto.

Abstract: A loudspeaker system designed to minimize the enclosure to fit in furniture and exceed high end fidelity sound found in larger and more complex systems. The system presented herein incorporates a sealed enclosure utilizing two small diameter audio drivers, 3? or larger depending on application, and a passive radiator, ported into a bass chamber with a tuned port. The two drivers are wired 180 degrees out of phase, aligned on the central axis, but facing opposite directions, resulting in a push-pull alignment. With the sealing of the enclosure, the internal driver becomes a static engine that projects the image of the sound stage while reducing the mechanical excursion, allowing higher SPL levels and more accurate reproduction of all frequencies in a small enclosure.

Abstract: An ear speaker device includes an electroacoustic transducer including a housing mounted at a predetermined position of listener's head, a speaker unit mounted on one surface in the housing, and positioned away from an entrance of the listener's external acoustic meatus for a predetermined distance when the housing is mounted on the listener's head, and a tubular duct extended so as to allow a sound generated by the housing in the inner space thereof to reach the vicinity of the entrance of the listener's external acoustic meatus, and a hole for emitting sound of the duct is oriented to the opposite direction with respect to the entrance of the external acoustic meatus; and a mounting part used for mounting the electroacoustic transducer on the listener's head in a manner that the predetermined distance is provided between the speaker unit and the entrance of the listener's external acoustic meatus.

Abstract: A loudspeaker enclosure for mounting in an aperture in a cavity wall with a part of the enclosure being located within the wall cavity adjacent the aperture, comprises a main enclosure unit for mounting in the aperture and housing one or more loudspeaker drive units, and a supplementary enclosure unit for location within the wall cavity and being acoustically connected in use to the main unit to increase the effective internal volume of the enclosure beyond that of the main unit. The supplementary unit is connected to the main unit by an articulated connection enabling the main unit to be angled relative to the supplementary unit while the supplementary unit is being inserted through the aperture and into the wall cavity, and enabling the main unit to be aligned with and acoustically coupled to the supplementary unit when the main unit is positioned in the wall aperture.

Abstract: Device for generating acoustic waves comprising an assembly of substantially parallel deformable walls, made of a conductive elastomer material, the series of walls delimiting contiguous spaces therebetween alternately leading over two opposite surfaces of said assembly into two cavities, that are sealed relative to one another; and a rigid revolving chamber containing the assembly and having two sealed cavities opposite two surfaces. Two circular screened slots formed in the chamber define two vents that ensure communication between the cavities and the external acoustic medium. Means are also provided for applying, in a controlled and variable manner, a set of electric potentials to the walls in order to induce an electric field between the walls, consecutively active, and inactive for a control polarity, and inactive and active for the opposite polarity, so as to decrease the space covered by the field, i.e. and in series, and to thus equally increase the contiguous space.

Abstract: An apparatus of the present disclosure enhances the audio/visual experience of a portable digital device, and comprises a lens positioning slot, a lens storage compartment, a passive audio amplifier, a receiving station.

Abstract: A resonant structure for loudspeaker includes a basket defining a front opening and having an annular magnet mounted therein; a voice coil suspended inside the magnet; a diaphragm connected at a suspended flange to the front opening of the basket; at least one flexible suspension member spaced behind the diaphragm for connecting to a rear opening of the basket; and an inner frame having a front end glued to a rear wall surface of the diaphragm, a central area to the voice coil and a rear wing member to the flexible suspension member. When the voice coil moves forward and backward on the inner frame, best possible harmonic resonance between the diaphragm and the flexible suspension members can be obtained. The loudspeaker is effectively reduced in height, and bass response is enhanced to ensure upgraded sound quality.

Abstract: A receiver or loudspeaker having a plurality of sound generators each having a housing and a sound output. An oblong channel is formed by a channel-forming element and parts of the housings. The sound outputs are positioned on one side of a middle of the channel and a outlet of the channel is positioned on the other side of the middle of the channel so that the channel has a length adapted to acoustically alter the sound. The use of the housings for forming the channels provides a more compact structure.

Abstract: A piezoelectric speaker includes: a chassis having a wall surface including an opening; a plurality of diaphragms including at least a first piezoelectric diaphragm and second piezoelectric diaphragms which vibrate in phases opposite to each other when a voltage is applied; and a joint member which connects the first and second piezoelectric diaphragms in a positional relationship such that the diaphragms are located at positions different from each other in a thickness direction. One of the diaphragms is provided, in the opening of the chassis, to have one surface facing an outside of the chassis and another surface facing an inside of the chassis. The diaphragm functions as a radiation plate which radiates a sound wave by vibrating at an amplitude generated by synthesizing amplitudes of the first and second piezoelectric diaphragms.

Abstract: An electric operation apparatus capable of opening interiors of front and rear portions of an apparatus main body frontward and rearward to make it easy to carry out assembly and maintenance inside the main body. Front and rear pivot shafts are provided on inner side surfaces of side plates of the main body so as to extend in the left-right direction of the main body. Front and rear panels are openable and closable relative to the main body by being pivoted about the pivot shafts, with their engagement recesses in engagement with the pivot shafts. The front and rear panels cover the main body when they are in closed states, and open the interior of the main body when they are in open states. The front panel is opened by being pivoted rearward, whereas the rear panel is opened by being pivoted forward.

Abstract: Systems, methods, and devices for providing high quality speaker performance in a small-scale design are disclosed. In accordance with various embodiments of the present invention, a small-scale speaker assembly is provided which is capable of delivering high-fidelity wideband audio. The speaker assembly includes a speaker driver and a number of electronic components within an enclosure. In some embodiments at least one microphone is included in the assembly. In some embodiments the speaker assembly is well suited for audio conferencing. In some embodiments low-frequency performance is improved in a small-scale design.

Abstract: A duct design and methods for designing ducts are described herein. The duct has a profile described by an equation that balances momentum of the fluid flowing through the duct with an adverse pressure gradient. The duct profile is configured to: (i) maintain the fluid's momentum to be greater than the adverse pressure gradient present at any location within the duct, such that no boundary layer separation occurs; and (ii) achieve a fluid exit momentum of approximately zero.

Abstract: Method, user terminal and computer program product for controlling audio signals at the user device during a communication session between the user device and a remote node, in which a primary audio signal is received at audio input means of the user device for transmission to the remote node in the communication session. It is determined whether the user device is operating in (i) a first mode in which secondary audio signals output from the user device are likely to disturb the primary audio signal received at the audio input means, or (ii) a second mode in which secondary audio signals output from the user device are not likely to disturb the primary audio signal received at the audio input means.

Abstract: A microphone mounting assembly (800A/800b) include one or more transducers (801) mounted to a printed circuit board (PCB) (805) where a spacer (803) is used having a channel (807) positioned on the PCB (805) for allowing acoustical energy to pass through the channel (807) to a port (809) in the PCB (805). A first cover (811) is positioned over the channel (807) for disrupting the direct encounter with airflow into the channel (807) while a top section (813) having a second cover (815) is further positioned adjacent to the first fabric cover (811) for preventing debris from obstructing the first fabric cover (811).

Abstract: An improved speaker in which a single electro-acoustic driver is mounted in a sound emitter cabinet with a spheroidal rear acoustic emitter wall, with the driver face exposed and mounted on a driver-mounting face of the cabinet and the driver body enclosed in the spheroid cabinet. The spheroidal rear emitter wall is spaced from and surrounds the driver body to receive the back wave and to responsively emit audible, clear sound from the cabinet wall to the surrounding listening area in complement to the primary sound wave from the driver face. The speaker cabinet is rigidly supported via the driver-mounting face such that the spheroidal rear emitter wall is suspended in air out of contact with surrounding surfaces.

Abstract: A loudspeaker assembly includes a first shell, a second shell, and a loudspeaker embedded in the first shell. Together the first shell and the second shell enclose a sound chamber. At least one of the first shell and the second shell can be folded to adjust the size of the sound chamber.

Abstract: Methods and apparatus for improving the acoustical performance associated with a speaker, such as a piezoelectric speaker, are disclosed. According to one aspect, an apparatus includes a substrate, a can mounted on the substrate, and a piezoelectric speaker arrangement. The piezoelectric speaker arrangement is at least partially mounted on the can. In one embodiment, the substrate is a printed circuit board (PCB) and the can is an electromagnetic interference (EMI) shielding can.

Abstract: A narrow profile speaker unit comprises at least one speaker outputting sound towards an internal surface and through a duct with an output terminus, such as a slot, having a narrow dimension, effectively changing the cross-section of the speaker's audio output wave. A pair of speakers may face one another, outputting sound towards a common output slot. Multiple pairs of speakers may be used to form an inline speaker unit for increased sound output. A slotted speaker unit may include multiple speakers facing the same direction, towards a ground plane or reflecting surface, and having parallel apertures for allowing sound radiation. The speaker units may be integral with or attached to electronic appliances such as desktop computers or flatscreen devices, or may be used in automobiles or other contexts.

Abstract: An earphone with tunable low pitch comprises a main member and a stirring member, wherein the main member has a chamber inside receiving a loud speaker, a low pitch room formed between the main member and the loud speaker, at least a fixing air hole provided at the rear side of the main member, a high pitch room formed between the front side of the main member and the loud speaker, at least a regulative air hole is provided at the high pitch room; the stirring member, which is pivotally joined to the pivot hole, is designed as a disk to close the regulative air hole or as airflow baffles to close corresponding airflow passages gradually such that the regulative air hole or the airflow passages can be partly or fully blocked by the stirring member to change the speed of the air entering or leaving the high pitch room and result in good low frequency resonant effect.

Abstract: A speaker assembly is provided with a speaker and a reflector spaced apart from the speaker. The reflector faces the speaker. The reflector has a central region and a plurality of circumferentially spaced lobes. Each lobe extends radially outward from the central region for reflecting acoustic vibrations from the speaker radially outboard from the reflector. Gaps are provided between the lobes for permitting acoustic vibrations to pass through the gaps.

Abstract: Systems and methods are described for a sound focusing apparatus and method that permits directional sensitivity and increased amplitude sensitivity in very compact form factor. Advanced detection, localization, and identification of sources of sound that are an extended distance away can be accomplished using systems whose form factor are small enough to be used in teleconferencing, while providing superior acoustic performance characteristics.