Abstract: A system and a method for mounting a speaker unit (12). The system (12) containing a surface mounting bracket (14) including at least one attaching feature (20) and a speaker unit (12). The speaker unit (12) comprises at least one audio speaker (42) and a semi-circular shaped surface (41). The shaped surface (41) defines a plurality of angularly spaced apart receiving features (44). The plurality of angularly spaced apart receiving features (44) are adapted for removably engaging said at least one attaching feature (20). In another embodiment, a speaker mounting system (10) contains a detachable base stand (60) having at least one base attaching feature (62) and a speaker unit (12) defines a plurality of angularly spaced apart receiving features (44). The plurality of angularly spaced apart receiving features (44) are adapted for removably engaging said at least one base attaching feature (62).

Abstract: An acoustic accessory is provided having a loudspeaker and a circuit board disposed therein. An acoustic suspension system is formed within the acoustic accessory by board retention rings disposed within the upper and lower housings of the accessory. The board suspension rings clench the printed circuit board, which includes at least one aperture. Rubber gaskets are coupled to the board retention rings to form an airtight seal. The air mass above the printed circuit board joins with the air mass below the printed circuit board to form a unitary reactance against which the loudspeaker works. The size and number of apertures may be varied in accordance with the acoustic application. Board retention posts optionally seat within notches in the printed circuit board to prevent the printed circuit board from moving laterally. Electrical connections may be made through the printed circuit board into the acoustic chamber, thereby not compromising the airtight seal.

Abstract: The invention relates to a connecting unit for the angle-adjustable connection of at least two loudspeaker enclosures. There are provided a first supporting part (13), which can be assigned to one loudspeaker enclosure (11), and a second supporting part (14), which can be assigned to the other loudspeaker enclosure (12), it being the case that the supporting parts (13, 14) are connected to one another in an articulated manner, and the angle position assumed in each case between the two supporting parts (13, 14) is fixed in an adjustable manner by an angle-position device (15) which acts in the manner of a turnbuckle.

Abstract: Side plates, constituting side surfaces of a speaker cabinet, each comprise a base member having a plurality of grooves formed in its outer surface (obverse surface) region at predetermined intervals, and a decorative plate adhesively bonded to the outer surface of the base member, in a laminated fashion, so as to cover the grooves. The laminated base member and decorative plate are pressed and curved, via upper and lower molds, so as to provide a smooth, convexlycurved outer surface. The grooves are adhesively bonded along their opening edges to the inner surface of the decorative plate, so that the opening edges of each of the grooves will not move toward or away from each other when external force is applied to the side plate.

Abstract: The present invention is to provide a speaker cabinet comprising a hollow case in which a top and a bottom thereof both are wavily tapered from a pair of opposite edges of a front opening to a rear thereof. By utilizing the wavy, rearward taper design of the top and the bottom, a ratio of an area of the opening to an area of the rear is increased. Thus, air inside the case will be compressed rearward when a diaphragm of a woofer vibrates. Next, the compressed air will quickly flow toward the rear along the wavy, rearward taper inner surfaces of the top and the bottom. As a result, air dynamic at the rear is higher and stronger low-frequency resonance of the cabinet can be generated.

Abstract: A loudspeaker system having wide-directional characteristics includes a loudspeaker body having a polyhedron shape, preferably of dodecahedron and a plurality of speakers disposed on outer surfaces, respectively, of the polyhedron-shaped loudspeaker body in a manner that axial lines of adjacent two speakers intersect each other at a predetermined angle. A correction filter is further operatively connected to the speakers, and the correction filter provides a correction value set so as to obtain a flatness of sound pressures at various portions around the loudspeaker body.

Abstract: A flat piezo-film speaker is mounted in a motorcycle helmet. The flat-piezo film speaker is formed from a flat piezo-film curved in one direction to form at least one curved portion. A radius R of curvature at the curved portion is larger than at least 200 mm, preferably, in a range of 210 mm?R?360 mm. The piezo-film speaker built into a helmet for a motorcycle rider is capable of reproducing sound at a sound pressure sufficiently audible even when running the motorcycle and at a high tone quality.

Abstract: A loudspeaker is provided for receiving an incoming electrical signal and transmitting an acoustical signal that is directional and has a substantially constant beamwidth over a wide frequency range. The loudspeaker may include a curved mounting plate that has curvature over a range of angles. The loudspeaker may include an array of speaker drivers coupled to the mounting plate. Each speaker driver may be driven by an electrical signal having a respective amplitude that is a function of the speaker driver's respective location on the mounting plate. The function may be a Legendre function. Alternatively, the loudspeaker may include a flat mounting plate. In this case, the respective electrical signal driving each speaker may have a phase delay that virtually positions the speaker onto a curved surface.

Abstract: A loudspeaker array comprising line sources, each of which comprises a curved one dimensional array of loudspeakers. The loudspeakers have horizontal dispersion angles of less than 60°. Adjacent pairs of loudspeakers of each line source are time-aligned in a direction bisecting their propagation axes, which are in a common vertical plane.

Abstract: A loud speaker enclosure being made in two parts with each of the side panels cut into angle form to assist in angle adjustment, alone with pivot hinges and friction lid supports used to hold it's angled position. The enclosure can be modified to accommodate any design or style of drivers boards. In addition to any design of loudspeaker, any orientation of enclosing may be incorporated with this invention. This enclosure can be used without driver board 5B were by Box B would then operate as an angling base for Box T.

Abstract: A speaker system features a plurality of transducers arranged to produce a sound field similar to that of an acoustic point source. The arrangement of transducers optimizes the sound field by reducing the sound energy directed towards the primary reflective surfaces within the room in which they are placed. In a preferred embodiment, four medium-size transducers (woofers) operate together to reproduce the low-range to mid-range frequencies with the woofers positioned so that no two woofers share a common vertical axis or a common horizontal axis, and so that the horizontal and vertical axes of the woofers are evenly spaced. Preferably a center of a fifth transducer, a high frequency tweeter, is placed at the center of a pattern formed by the center of the woofers. The fifth transducer is set at a depth within the enclosure that is at the same acoustic center as the acoustic center of the woofers.

Abstract: In a speaker device including a plurality of speakers outputting different frequency bands, for a listener listening to sound from the speaker device, a first emitting direction of a first speaker emitting a high frequency band is oriented toward the listener more than a second emitting direction of a second speaker emitting a low frequency band.

Abstract: A system is disclosed for changing a coverage angle of sound produced from a loudspeaker system. The loudspeaker system includes an enclosure that projects sound at a predetermined angle. A sound integrator includes an inner surface positioned adjacent to a mid-range frequency sound source. An outer surface of the sound integrator includes a planar and a curved surface. The surfaces control the angle which sound radiates from the loudspeaker.

Abstract: A speaker system and related method for making the same include a rigid, cylindrically shaped body member with opposite ends and a hollow interior which defines a sound chamber. A base is connected with one end of the body member to support the speaker system within a building room. A high-range speaker is mounted in the sound chamber, with a diaphragm portion located within a first radial opening in the body member to direct high-range sound radially toward the listener. A bass port is mounted in a second radial opening in the body member opposite the high-range speaker, and directs low-range sound in the sound chamber radially toward the listener. A head is mounted on the end of the body member opposite the base member, and includes a mid-bass speaker with a diaphragm oriented axially outwardly, so that sound emitted therefrom is directed axially onto the surfaces of the room to naturally equalize the output of the speaker system.

Abstract: An audio array for receiving or generating audio signals. The audio array includes first, second and third audio elements and first second and third structures. Each of the first second and third structures are right triangles. The first second and third audio elements are each secured to a respective one of the first, second and third structures and the first, second and third structures are positioned to extend at a substantially 90° angle to each other. The first second and third audio elements are positioned in a substantially central location of the first second and third structures. The first second and third audio elements are all either speakers or microphones. The first, second and third structures are all retained within a comprising a housing.

Abstract: A fetal communication device includes a wireless microphone for transmitting audio signals to be communicated to the baby. The communication device includes a rigid housing adapted for a comfortable fit to the mothers abdomen. The communication device also includes a timer and sound level monitor to help prevent undesired volume levels and durations of stimulation.

Abstract: A speaker system having a first speaker, a second speaker, and a housing having a first mounting surface to which the first speaker is mounted and a second mounting surface to which the second speaker is mounted. The first mounting surface and the second mounting surface are substantially planar and abut one another to form an included angle of between 120 degrees and 140 degrees. By so arranging the mounting surfaces, the sound produced by each speaker is allowed to mix to provide a full sound.

Abstract: A device (8) which includes an electroacoustic transducer (7) for the acoustic reproduction of sound signals to an ear (14) of a user (2) who assumes a user position at the device. The transducer is optimized for the acoustic reproduction of speech-signal sound waves and is equipped with arrangement means (25) for realizing a distinct directivity for the speech-signal sound waves emitted by the transducer. As a result of its directivity, the transducer directs the speech-signal sound waves which it emits preferentially to the ear of a user who is in the user posture.

Abstract: A new approach has been developed to combine mid-range and high frequency sound into the throat of a horn designed for sound reinforcement. An acoustic low pass filter element is interposed between the lower frequency passage and the higher frequency passage, so that a smooth combination of the two frequency bands is achieved at the entrance to the horn bell. Thus, each frequency band has nearly identical dispersion, and the two sources have equal delay.

Abstract: The present invention relates to a speaker device or the like capable of stably providing desired directivity provided by a combination of omnidirectionality and bidirectionality down to ultra low frequencies. A speaker (22) is attached to one end face of a speaker box (21) and a sound wave radiation port (23) in a circular shape covered with acoustic resistance material (24) is installed at other end face thereof. The sound wave radiation port (23) is for radiating air vibration produced by a rear face of a speaker diaphragm to outside as sound wave and an axis penetrating the center extends in a direction of a principal axis (reference axis) of the speaker (22). A low pass filter is constituted by acoustic resistance and acoustic mass of the sound wave radiation port (23) and acoustic mass provided by air in the speaker box and a directivity is provided by utilizing group delay time in a pass band of sound wave radiated from the sound wave radiation port (23) via the low pass filter.

Abstract: The invention features an acoustic waveguide and system for transmitting pressure wave energy produced by an electroacoustical transducer in a medium that propagates pressure wave energy. The acoustic waveguide and system includes a tube defining a spiral-shaped channel with a length of L. The tube has a first end and a second end with the first end closed and the second end open to the medium. The tube has a transducer opening for accommodating an electroacoustical transducer located between the first and second end of the tube. The system includes an electroacoustical transducer mounted to the acoustic waveguide.

Abstract: Disclosed is an improved loudspeaker comprising a pre-stressed cabinet and a loudspeaker unit fixed to the inside of the cabinet. The cabinet comprises a hollow conical assembly including two conical bodies of high-rigidity metal, one press-fitted into the other by applying an increased compressive force. The hollow conical assembly has front and rear plates closing its front and rear openings. These front and rear plates are pulled toward each other by tightening screw rods.

Abstract: The back to back mounted compound woofer that improves sound quality by minimizing mechanical vibrations is provided. The woofer speakers of the present invention are under compression allowing for more efficient cone motion control resulting in a lower cutoff and thus, resonant, frequency. Since the compound woofer of the present invention minimizes size, material, and electrical and custom components, it is inexpensive to manufacture. A housing provides an enclosure for the compound woofer. The housing includes opposed sidewalls or side plates, each having a coaxial opening. Each of two speakers is mounted on a respective coaxial opening of a respective sidewall. Additionally, the two speakers are mounted back to back, i.e., with their magnet structures in close proximity to one another. In one embodiment, the magnet structures are coupled to one another using a flexible sealing compound such as putty. In another embodiment, the two woofers share a common unitary magnet structure.

Abstract: By providing a spherically shaped housing or enclosure containing one or more drivers or speakers motors, and cooperatively mounting the housing in association with a uniquely constructed reflector, a spherical loudspeaker system is achieved which controls and shapes the ultimate acoustical waveform produced thereby. The loudspeaker system of the present invention controls and distributes the acoustical energy of the driver and housing, while shaping the acoustical energy field into a true hemispherical pattern, within the system's power bandwidth. By employing the present invention, the point of summation of the hemispherical pattern is approximately eight times the diameter of the reflector, thereby achieving the desired hemispherical polar coverage patterns.

Abstract: A speaker apparatus having a first half and a second half, each having a rim and being generally paraboloid shaped, or bowl-shaped. A first opening, or window, is positioned near a vertex of the first half. A second opening is positioned near a vertex of the second half, and a grille positioned within the second opening. A mid-range component may be positioned within the first opening. When the apparatus is assembled, the respective rims of the first and second halves engage to form a generally hollow chamber therebetween.

Abstract: A sounding-body holding device comprises: a cover 1 having turn stoppers of a sounding body 3 and a fitting portion for receiving pawls of a holding member in a fitting manner; a cushion 2 having a net attached to the side thereof which is brought into close contact with the cover, the cushion resiliently the sounding body; the sounding body 3 having conductive springs and protrusions used for stopping the turn of the sounding body 3 per se; and a holding member 4 having the pawls for fastening the sounding body 3 onto the cover 1.

Abstract: This invention provides a speaker assembly for particular use in conjunction with lap-top computers or similar. Adjacent housing portions are provided to contain speakers and are interconnected so that the housings may be movable between a co-planar position and a non co-planar position. The non co-planar position allows the speakers in adjacent housings to have some focusing of the sound propagating from the speakers to provide enhanced performance despite the relatively small thin nature of the speakers provided in each housing. When in the non co-planar configuration, the front faces of the housings provide a concave overall appearance to the speaker assembly towards the user and help support each other against overturning.

Abstract: A reflection speaker assembly includes a cylindrical body having an aperture, a reflector, a tweeter type speaker for higher frequencies and a midrange type of speaker for middle frequencies. The tweeter is located on the wall of the cylindrical body. The midrange is mounted inside the body. The aperture is located between a base containing the reflector and a housing containing the midrange speaker. In one embodiment, the reflector is positioned opposite the midrange speaker in the body and comprises in a flat surface set at an angle relative to the midrange speaker. In a second embodiment, the reflector is positioned opposite the midrange speaker in the body and is roughly conical. Sound waves radiated from the midrange speaker are reflected by the reflector, and are dissipated to the outside through the aperture.

Abstract: A loudspeaker enclosure is disclosed which includes a horizontal bottom wall, front wall means and parallel spaced vertical side walls connected with the bottom wall. The front wall means include an adjustable baffle board with at least one opening for mounting a loudspeaker and a horizontal top wall is connected with the upper edges of the front wall means and the side wails. Electronic components of a musical instrument amplifier may be mounted into the upper section of the enclosure. The invention is characterized by the provision of said adjustable baffle board which can be vertically tilted backwards or, as an alternative, sidewise to change the listening axis from the loudspeaker to the listener for optimum directional sound quality.

Abstract: Provided is a speaker apparatus which is optimal for an acoustic musical instrument. The speaker apparatus comprises an enclosure formed of a body of a classical guitar, and a speaker unit incorporated in the enclosure. Thus, the speaker apparatus reproduces a real tone by making the best use of resonance of the body.

Abstract: A broadband loudspeaker radiating as an approximate point source, whose movable components are fastened to a dome-shaped loudspeaker front, wherein the loudspeaker front flares rearwardly to an enclosure shell disposed coaxially around the central axis of the enclosure and a diagonally disposed deflection plane, which can be formed as the back wall, faces the back side of the diaphragm. The inside cross section of the enclosure shell is preferably a polygon with an odd number of sides, as is the dome-shaped loudspeaker front and the loudspeaker diaphragm, which is preferably cup-shaped and which can be fastened directly to the loudspeaker front.

Abstract: A box-like enclosure for spatially orientable speakers, having a plurality of engagement elements formed during the molding of the enclosure in its peripheral region and engaged by ends of anchoring cables in order to allow any spatial orientation of the enclosure.

Abstract: The present invention is related to a cabinet for consumer electronic devices equipped with loudspeakers. Examples for such devices are audio equipment like CD players, tape recorders, radios, and television receivers. In particular, the invention is related to devices where the loudspeakers form an integral part of it.

Abstract: An electronic apparatus for use in recording and/or playing back audio or video signals includes a six-sided housing of which at least a pair of opposite sides are arranged not parallel to each other, and a signal processor unit mounted in the housing and including at least a circuit board which has a degree of rigidity. The circuit board is arranged with its main side facing the non-parallelly arranged, paired opposite sides of the housing. This prevents the generation of resonance between the housing and the circuit board caused by a stress of vibration introduced to the housing and the circuit board, thus hardly allowing the audio or video signals to deteriorate their recording and/or playback properties.

Abstract: Disclosed is a speaker having a device capable of generating sound and vibration for notifying reception of an incoming call when a radio incoming signal is received. The speaker comprises a cylindrical frame; magnetic field forming means disposed in the cylindrical frame for forming first and second magnetic flux; a sound generating section for producing electromagnetic force by interaction with the first magnetic flux and thereby generating sound, when a signal having a frequency which is no less than a predetermined frequency, is applied thereto; and vibration generating means for producing electromagnetic force by interaction with the second magnetic flux and thereby generating vibration, when a signal having a frequency which is less than the predetermined frequency, is applied thereto.

Abstract: The internal fan arrangement of an AHU is reconfigured by discharging directly from the scroll into a 90.degree. elbow. The bend of the elbow defines a converging section terminating in a throat which leads to a diverging section. Additionally, the ANC structure is located in the elbow with the noise sensing microphones being located at or near the fan outlet.

Abstract: A plurality of speakers are arranged in line, and a plurality of digital filters are provided for the speakers. Each of the digital filters is applied with a plurality of audio signals. Characteristics of each digital filter is adjusted so as to provide patterns of directivity to each speaker dependent on the input audio signals.

Abstract: A cabinet for a loudspeaker with a preferably circular cross-section, in which the loudspeaker is closed on the front side substantially flush with one side of the cabinet and wherein means are provided for positioning the cabinet, wherein, starting from the periphery of the loudspeaker, the cabinet expands all round obliquely towards the rear for a specific distance, and in which the oblique surface consists of a plurality of oblique partial surfaces arranged at differing shallow angles side by side and/or one behind the other, and the cabinet tapers rearwardly of the specific distance towards the rear so as to be closed.