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: In the case of a receiver facility to be fixed in the auditory canal, particularly for hearing devices with an external receiver, the receiver is to be mounted in the earmold in an acoustically advantageous fashion which guards against contaminations and is also easily exchangeable. Provision is thus made for a receiver facility with a longish receiver and a earmold, which has a borehole, into which the receiver is inserted. A tubular connector, which is more elastic than the receiver and the earmold, is used to accommodate for the most part the longitudinal extension of the receiver in a friction-locking fashion. The connector is for its part force-fitted into a borehole of the earmold in a friction-locking fashion. The receiver is thus elastically mounted and can be easily removed from the earmold together with the connector with the aid of a pin-like tool for replacement purposes.

Abstract: An in-ear earphone includes a shell and a sound output device. The shell has a first engaging portion. The sound output device has a sound tunnel, a second engaging portion and a speaker. The speaker is disposed between the sound tunnel and the second engaging portion coaxially with the sound tunnel. The second engaging portion is movably engaged with the first engaging portion. The angle between the shell and the sound output device is adjustable so that the sound tunnel can be suitably plugged into individual user's ear canals.

Abstract: An integrated eartip (501) that utilizes a one-piece, rather than a multi-piece, design is provided. The one-piece design is comprised of a first portion that includes at least one, or at least two, sound delivery tubes (513/515) and a second portion that is comprised of a compressible region. The integrated eartip also includes means for releasably attaching the eartip to an earphone in general, and a coupling member (503) in particular, thus allowing the eartip to be replaced as desired. When attached, the sound delivery tube, or tubes, of the integrated eartip are aligned with the acoustic port, or ports, of the earphone/coupling member. The first and second portions of the integrated eartip may exhibit different rigidity and/or compressibility characteristics. The integrated eartip can be fabricated from a single material such as a natural or synthetic elastomer.

Abstract: An earbud coupling has a rear portion forming an earbud mount (14) that easily attaches to a hemispherical earbud (12), and has a front portion forming an in-ear mount (16) that can be pressed into a person's ear canal to hold the coupling to the person while blocking environmental noise. The earbud mount includes a tapered elastomeric sleeve (50) with an internal groove (62) at its rear end. The earbud mount rear end can be expanded to fit around the periphery of the earbud front end to securely attach to the earbud. A plurality of different in-ear mounts or tips can be provided that each can be attached to the front end of the earbud mount, including an in-ear mount (100) that consists of a single integral elastomeric member with at least one flange (205). The earbud mount and in-ear mount can be connected by a shaft (130) with pair of projections (132) on one of the mounts that is inserted into a hole (136) with slots (140) of the other one and turned.

Abstract: A noise attenuation device comprising a first tube for receiving an acoustic signal, a first housing defining a first cavity between a first surface and a second surface, the first tube being coupled to the first housing at the first surface for conducting the acoustic signal into the first cavity, wherein one end of the first tube contacts the first surface at a first region with a first area, a second housing defining a second cavity between a first surface and a second surface, and a second tube coupled between the second surface of the first housing and the first surface of the second housing for conducting the acoustic signal between the first cavity and the second cavity, wherein one end of the second tube contacts the second surface of the first housing at a second region with a second area, wherein the first tube, the first housing and the second tube form a filter structure and the area of the first surface of the first housing is greater than the first area and the area of the second surface of the

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 wireless air tube headset that includes a wireless transceiver operating in a radio frequency band, which wireless receives audio signals. The headset includes an acoustic chamber with an acoustic port through to the exterior thereof, and an acoustic transducer that is electrically coupled to the transceiver, and that operates to generate acoustic signals. The acoustic transducer is aligned with the acoustic chamber to emit the acoustic signals through the acoustic port. There is an acoustic isolator disposed to attenuate extraneous acoustic signals emitted from the acoustic transducer and also to attenuate ambient noise entry into the acoustic chamber. An acoustic conduit is formed from an electrically non-conductive material, and has a first opening engaged with the acoustic port and a second opening engaged with an acoustic coupler, which has a first earpiece engagement means.

Abstract: An in-ear canal earphone includes a torus-shaped cushioning member defining an aperture therethrough. An audio housing is connected to the cushioning member such that the cushioning member is movable between a first position, in which the housing extends generally away from the cushioning member, and a second position, in which a portion of the housing extends through the aperture for insertion into an ear canal.

Abstract: An earpiece device includes a housing having a sound output portion, a speaker and a microphone. The speaker disposed in the housing includes a diaphragm and a sound transmitting hole. The diaphragm is located between the sound output portion and the sound transmitting hole. The microphone is disposed in the housing and covers the sound transmitting hole. A sound wave generated within an ear canal would be received by the speaker and delivered through the sound transmitting hole to the microphone for pickup.

Abstract: A multi-driver, in-ear monitor is provided that is coupleable to an external audio source, for example via a source input cable or a wireless receiver. A circuit, for example comprising a passive or active crossover circuit, receives the electrical signal from the external audio source and provides separate input signals to the drivers contained within the in-ear monitor. A plurality of sound delivery tubes acoustically couple the audio output from each of the drivers to the acoustic output surface of the in-ear monitor. The in-ear monitor may be configured as a custom fit IEM or configured to accept a removable eartip. The plurality of sound delivery tubes may be comprised of a pair of concentric tubes; a pair of concentric tubes and a discrete tube; or three concentric tubes.

Abstract: Electrical signals corresponding to sound are received at a wire, and sound is generated at a speaker connected to the wire. The sound is resonated in a cavity of a shell housing the speaker, and then passed along a transmission tube toward a pinna of a user's ear without directing the sound directly toward the user's ear canal.

Abstract: Certain embodiments of the invention may be found in an insert earphone assembly. The insert earphone assembly may comprise a housing and a transducer located in the housing. The transducer may be for converting electrical signals received into sound energy. The insert earphone apparatus may further comprise an insert element. The insert element may be at, least partially integrated within the housing. The insert element may also comprise a main sound channel for communicating the sound energy from the transducer to a user. In certain embodiments, one or more of the body and the insert element may comprise one or more auxiliary ducts and one or more auxiliary volume spaces. The one or more auxiliary ducts and one or more auxiliary volume spaces may be separated by one or more auxiliary dampers.

Abstract: An insert earphone device includes an electro-acoustic device, an inserting body, a sound tube connected between the electro-acoustic device and the inserting body and an active valve unit provided on the sound tube, the sound tube is formed with a sound propagation path open at both ends thereof to the electro-acoustic device and the inserting body and an external sound entrance open at both end thereof to environment and the sound propagation path, and the active valve unit is formed of electroactive polymer and responsive to voltage supplied through a cable so as to close and open the external sound entrance; when a user wishes to hear external sound, the user changes the polarity of voltage so that the active valve unit is deformed for conducting the environment to the sound propagation path, whereby the user hears the external sound without removing the earphone device from the ear.

Abstract: An open-air type earphone having a duct that communicates between an inside and an outside of the earphone and applies an inductance component to an acoustic signal generated by an electroacoustic transducer. The earphone includes the electroacoustic transducer to convert an electric signal into an acoustic signal, a housing to accommodate the electroacoustic transducer, and a variable duct unit that inwardly extends from the housing to communicate between the earphone and the surrounding atmosphere, and to adjust an inductance component for the acoustic signal generated by the electroacoustic transducer. Since a length or sectional area of the duct can be varied at an end of the housing, a frequency characteristics, particularly, a loss bass characteristic of the earphone, can be easily adjusted according to a user's taste, a genre of music, and the like.

Abstract: A system and associated methods provide an audio experience such that a user spatially perceives one or more audio events. One particular method set forth involves obtaining audio events and presenting the audio events so that an audio experience is provided. According to one embodiment of the method, upon obtaining audio events, the audio events are associated with one or more corresponding audio components. Thereafter, the audio experience is determined based on the audio events and associated audio components. The audio experience is then presented such that the user may spatially perceive the audio events.

Abstract: Headsets (20, 50, 60, 71) provide surround sound and full 3 dimensional effects to a user to simulate the effects of direction and sound source. Advantages include: surround sound effect without the limitations of Head-Related Transfer Functions, and pinna effect customized to each user's ears; horn shape tube outlets (32) to create an efficient transmission of sound; ability to space the headset speakers (22, 24) away from the user's ear and to maintain sound quality by addition of a chamber (28) behind the speakers (22, 24), with the aid of tube sound guides (23, 25) and the horn shaped outlets; and, no need for electronic hardware to process the electrical signals to create desired effects as placement of the speakers creates the correct timing, and damping material (34) in the tubes between speakers creates a desired intensity drop. Head tracking capability is also provided.

Abstract: An earphone device with a bass adjusting function is provided. The earphone device includes an accommodating portion and an extension segment. The accommodating portion has an inner chamber for accommodating a speaker. The extension segment which is hollow-shaped and has a first space and a second space therein, and the first space is in communication with the inner chamber of the accommodating portion, and when a portion of the extension segment is adjusted from a first position to a second position, the first space, the second space, and the inner chamber of the accommodating portion are in communication, so as to increase a volume of the back chamber of the speaker.

Abstract: An earphone includes a first acoustic chamber including a reactive element and a resistive element in parallel, a second acoustic chamber separated from the first acoustic chamber by an acoustic transducer, and a housing to support the apparatus from the concha of a wearer's ear and to extend the second acoustic chamber into the ear canal of the wearer's ear. A cushion includes a first material and a second material and is formed into a first region and a second region. The first region defines an exterior surface shaped to fit the concha of a human ear. The second region defines an exterior surface shaped to fit the ear canal of a human ear. The first and second regions together define an interior surface shaped to accommodate an earphone. The first material occupies a volume adjacent to the interior surface. The second material occupies a volume between the first material and the first and second outer surfaces. The first and second materials are of different hardnesses.

Abstract: The present invention relates to a multiple channel earphone of small volume. In the earphone structure, a chamber tube with an adjusting hole or a set of adjusting holes is provided. The sound pressure of the chamber tube is naturally released without affected the performance of the main chamber sound field. When the external speaker connected to the chamber tube generates a large sound pressure, the sound pressure released naturally by the adjusting hole or a set of adjusting holes is increased accordingly, so that the sound pressure produced by the external speaker connected to the chamber tube is controlled by the main chamber.

Abstract: A portable apparatus includes a display housing, a main housing, and a sound output device. The display housing has a pivot side. The main housing includes a pivot portion that defines a pivot axis and that is coupled to the pivot side of the display housing such that the display housing is pivotable relative to the main housing about the pivot axis. The pivot portion is formed with a receiving space. The sound output device is disposed in the receiving space of the pivot portion and outputs sound in a sound propagating direction substantially parallel to the pivot axis.

Abstract: An adapter for coupling a probe tube (6) for real ear measurements to a microphone of a hearing aid comprises a sleeve (2) adapted to be arranged around the housing (8) of a hearing aid. The sleeve comprises a sound opening allowing sound to pass from the probe tube to the microphone. The device may be used in a method for performing real ear measurements comprising the steps of providing the device, fitting the device around the housing of the hearing aid with the sound opening is placed over the microphone of the hearing aid, placing the probe tube in the ear in such a way that a free end thereof presents an opening in the cavity between the earplug and the tympanic membrane, and detecting the sound pressure from sounds produced by said hearing aid in the cavity using the microphone.

Abstract: An earphone with a sound guiding tube is provided. The sound guiding tube has an external chamber beside the ear. Compared with a conventional earphone which transmits sound directly into the ear, the earphone of the present invention has a external chamber which forms sound field outside the ear and then transmits the sound into the ear through a sound guiding tube in a particular angle. The earphone of the invention is suitable for stereo sound source or multiple-channel sound sources and will reduce damage caused by wearing the earphone for a long time.

Abstract: An insert earphone device includes an electro-acoustic device, an inserting body, a sound tube connected between the electro-acoustic device and the inserting body and an active valve unit provided on the sound tube, the sound tube is formed with a sound propagation path open at both ends thereof to the electro-acoustic device and the inserting body and an external sound entrance open at both end thereof to environment and the sound propagation path, and the active valve unit is formed of electroactive polymer and responsive to voltage supplied through a cable so as to close and open the external sound entrance; when a user wishes to hear external sound, the user changes the polarity of voltage so that the active valve unit is deformed for conducting the environment to the sound propagation path, whereby the user hears the external sound without removing the earphone device from the ear.

Abstract: Systems and techniques are disclosed for a headset that may be used in an audio system used in a magnetic field. In one aspect, the system includes an inner set portion adapted to fit into an ear canal. A pneumatic port is disposed in the hole to couple audible sounds to the ear canal. The system may include a non-magnetic transducer coupled to the pneumatic port. The system also may include a fiber-optic microphone to couple sound from a user of the headset. Other techniques provide a stethoscope-type yoke to couple the pneumatic port and the fiber-optic antenna to the non-magnetic transducer.

Abstract: An adapter configured to be detachably coupled to an earbud-type sound device or other sound device is disclosed. The adapter includes an adapter body having a top portion, a bottom portion which is configured to be detachably coupled to a sound device, and a projection extending from the top portion at a junction region between the projection and the top portion of the adapter body. The projection includes a sound conduit extending from an opening in the top portion of the adapter body. Furthermore, the junction region includes a multi-directional positioning component allowing the projection to be positioned at a plurality of angular positions relative to the top portion of the adapter body.

Abstract: There is provided a headphone including: a housing that accommodates a driver unit; a sound guiding tube that protrudes from the housing in a predetermined direction and guides a sound generated from the driver unit to an external auditory canal; and a hanger that rotatably supports the housing via a supporting shaft provided in approximately the same direction as a depth direction of the external auditory canal and in a direction inclined to a protruding direction of the sound guiding tube. According to this structure, by rotating the housing with respect to the hanger via the supporting shaft, the protruding direction of the sound guiding tube with respect to the hanger can be adjusted. Thus, by adjusting the protruding direction of the sound guiding tube according to the inclined angle of the external auditory canal of a user, wearability of a headphone can be improved.

Abstract: A reproduced sound of high quality is allowed to be listened to by a listener while natural sound image localization is provided. By providing a housing 4L having internal space mounted at a predetermined position of the head of the listener, a speaker unit 7L mounted on one surface of the housing 4L and positioned away from an entrance of an external acoustic meatus of the listener for a predetermined distance when the housing 4L is mounted on the head 100 of the listener, and a tubular duct 8L extended so as to allow a sound generated by the housing 4L to reach the vicinity of the entrance of the external acoustic meatus of the listener, the sound generated by the housing 4L can be directly reached to an eardrum 103L in the inside of the external acoustic meatus from the vicinity of the entrance of the external acoustic meatus of the listener via a tubular duct 8L.

Abstract: An adapter for connection to an earphone or headphone having a speaker which is housed in a relatively rigid casing utilizes an elongated hollow body having two open ends. One open end of the body is adapted to be positioned about the relatively rigid speaker casing of the earphone or headphone for connection thereto, and the other open end of the body is adapted to be positioned within the ear of a user. The hollow body has an interior shape which is shaped to conduct sound emitted from the speaker casing toward and through the other open end of the body.

Abstract: Disclosed is a virtual multi-channel speaker unit, comprising a casing having a transmission portion through which sounds pass; a solenoid coil arranged in the casing and applied with acoustic signals; a magnetic body around which the solenoid coil is wound to form magnetic field; a diaphragm that faces one side of the magnetic body and vibrates to transmit sound waves through the transmission portion; and a transmission conduit having an inlet hole through which sound waves and compressed air generated behind the diaphragm upon the vibration of the diaphragm are introduced, and an outlet hole for discharging the sound waves and compressed air introduced through the inlet hole, the inlet hole being connected to a portion of the backside of the casing, the outlet hole being oriented toward the front of the diaphragm.

Abstract: An earphone assembly with an audio receptacle, comprises a connecting portion suitable for locating the earphone assembly upon the head of a user; two ear masks installed at two ends of the connecting portion; a seat being installed at one of the mask or at the connecting portion; an insertion hole being formed in the seat as an audio receptablce for receiving an audio plug; and a connecting wire having two plugs at two ends thereof; one audio plug being able to connect with the insertion hole of the seat. Moreover, the seat can be replaced by a prolong wire and the insertion hole is formed in the prolong wire.

Abstract: An otoplastic for production of behind-the-ear hearing aids. The hearing aid includes a preferably flexible signal conductor, such as e.g. an acoustic tube positioned in the auditory canal, whereby the otoplastic matches the individual anatomy of the patient and its locating part is in the form of a clip, which, at least partly arched, follows the outer edge of the cavum conchae. A branch which following the edge of the cavum conchae transforms, above the antitragus, into a bent crosspiece traversing the cavum conchae and extending in the direction of the porus acusticus externus. The end section of said crosspiece lies in the upper section of the auditory canal and widens to accept the signal conductor.

Abstract: A headset microphone boom that includes a hollow tubular member with a reflective interior surface. A light disperser is coupled to the hollow tubular member at one end and a light emitting device is coupled to the hollow tubular member at the other end. Light is transmitted from the light emitting device through the hollow tubular member to the light disperser. Sound waves are simultaneously transmitted from an acoustic port through the hollow tubular member to a microphone.

Abstract: A microphone positioning structure is connected to an audio output device, and is composed of a sound tube, an end of which is connected with the audio output device; an earplug part which is located at a tail end of the aforementioned sound tube; an ear-hook part, an end of which is connected with the aforementioned sound tube. An end of the sound tube is plugged into the audio output device such as a trumpet or a loudspeaker, the ear-hook part is hung on a user's auricle for positioning, and the earplug part is inserted into the user's ear. In addition, while listening, the ear-hook part is hung and fixed on the user's auricle; therefore, the earplug part will not be subjected to a force, and it will not be fallen off due to a force of gravity and a shaking.

Abstract: An earphone with a sound guiding tube is provided. The sound guiding tube has an external chamber beside the ear. Compared with a conventional earphone which transmits sound directly into the ear, the earphone of the present invention has a external chamber which forms sound field outside the ear and then transmits the sound into the ear through a sound guiding tube in a particular angle. The earphone of the invention is suitable for stereo sound source or multiple-channel sound sources and will reduce damage caused by wearing the earphone for a long time.

Abstract: Systems and techniques are disclosed for a headset that may be used in an audio system used in a magnetic field. In one aspect, the system includes an inner set portion adapted to fit into an ear canal. A pneumatic port is disposed in the hole to couple audible sounds to the ear canal. The system may include a non-magnetic transducer coupled to the pneumatic port. The system also may include a fiber-optic microphone to couple sound from a user of the headset. Other techniques provide a stethoscope-type yoke to couple the pneumatic port and the fiber-optic antenna to the non-magnetic transducer.

Abstract: A multiple channel earphone is provided with an external tube disposed on the earphone main body. The earphone includes a case, a case extension unit, and a cover. A main sound field is formed in an interior chamber enclosed by the case, the case extension unit and the cover. By adjusting the space in the external tube, the spatial effect of the sound field is significantly increased. The proposed multiple channel earphone selectively has a mechanism for sound field balancing by the sounds generated from these two sub-speakers spaced apart from each other for better sound quality. The sound field of the proposed multiple channel earphone can also be spaced apart into two physically separated sound fields by disposing an external chamber on the earphone main body.

Abstract: An open-air type earphone having a duct that communicates between an inside and an outside of the earphone and applies an inductance component to an acoustic signal generated by an electroacoustic transducer. The earphone includes the electroacoustic transducer to convert an electric signal into an acoustic signal, a housing to accommodate the electroacoustic transducer, and a variable duct unit that inwardly extends from the housing to communicate between the earphone and the surrounding atmosphere, and to adjust an inductance component for the acoustic signal generated by the electroacoustic transducer. Since a length or sectional area of the duct can be varied at an end of the housing, a frequency characteristics, particularly, a loss bass characteristic of the earphone, can be easily adjusted according to a user's taste, a genre of music, and the like.

Abstract: An otoplastic for production of behind-the-ear hearing aids. The hearing aid includes a preferably flexible signal conductor, such as an acoustic tube positioned in the auditory canal, whereby the otoplastic matches the individual anatomy of the patient and its locating part is in the form of a clip, which, at least partly arched, follows the outer edge of the cavum conchae. A branch following the edge of the cavum conchae transforms, above the antitragus, into a bent crosspiece traversing the cavum conchae and extending in the direction of the porous acusticus externus. The end section of the crosspiece lies in the upper section of the auditory canal and widens to accept the signal conductor (42).

Abstract: Headphones or earphones are commonly known as electro-acoustic transducers used by a single listener. The invention relates to combing insert and non-insert electro-acoustic transducers in a headphone element. In this way a combination of a wide-low frequency reproduction (insert type) and a wide-high frequency reproduction (non-insert type) are obtained.

Abstract: The present invention teaches a wireless ear-piece headset forming an antenna with the interior of a human ear, especially the ear canal. An antenna in operative connection with such interior of such human ear greatly improves reception and transmission of the device. The antenna may be comprised of a conductive plastic forming the lower body of the ear-piece headset, a sound tube projecting from the body or only a part thereof. The antenna may form an efficient capacitive connection with the body or may form a direct electrical connection. The wireless ear-piece headset comprises a headset body; a microphone, a transceiver, a receiver and a battery within the headset body, and a sound tube projecting from the headset body. A mini-speaker disposed within the headset body passes sound from the mini-speaker out and into the interior of a human ear.

Abstract: A headset microphone boom that includes a hollow tubular member with a reflective interior surface. A light disperser is coupled to the hollow tubular member at one end and a light emitting device is coupled to the hollow tubular member at the other end. Light is transmitted from the light emitting device through the hollow tubular member to the light disperser. Sound waves are simultaneously transmitted from an acoustic port through the hollow tubular member to a microphone.

Abstract: A hearing instrument and method of assembly are disclosed. The hearing instrument comprises an electronic assembly for providing received sound to the ear canal of a hearing instrument user. The electronic assembly is placed within a chamber in a housing sized to fit within the ear of the hearing instrument user. The chamber includes an internal guide channel and mounting surface for locating and positioning the electronic assembly. A volume encompassed within a hearing aid housing may be analyzed, such as with computer software, to identify a location within the chamber to position the electronic assembly, and then the electronic assembly may be incorporated into the housing using a guide channel and mounting surface of the housing for locating and positioning the electronic assembly in the identified location.

Abstract: A communications earpiece includes a member shaped to fit within an ear canal. The member has a passageway extending therethrough. There is a filter communicating with the passageway. The filter has a passageway extending therethrough and is aligned with the passageway in the member. The passageway in the filter has at least a portion which is narrower than the passageway in the member. Preferably the passageway in the filter has a first section and a second section. The second section is narrower than the first section and the passageway in the member. A method of attenuating acoustical signals in the communications earpiece is also provided. The earpiece has a member shaped to fit within an ear canal. The member has a passageway extending therethrough. The method comprises placing a restriction in the earpiece which is substantially narrower than the passageway and which communicates with the passageway.

Abstract: An electro-acoustic system for use with an electronic sound-generating member including a fitted earmold having a sound-conduction bore extending therethrough, a sound-conduction tubing having one end connected to the sound-conduction bore and being curved so as to extend along a person's head between the person's head and an ear, a speaker having one end connected to another end of the sound-conduction tubing, an electrical cable having one end connected to the speaker, and an electrical plug at the other for electrical connection to an electronic sound-generating equipment.

Abstract: A lightweight communications headset includes a headband adapted to be worn on user's head. A speaker housing is carried by the headband and defines an acoustic chamber. A speaker mounted within projects sound waves into the acoustic chamber. The headband carries a pair of earpieces which are positionable adjacent to the user's ears for delivering sound thereto. The acoustic chamber is coupled to earpieces through acoustic passages which transmit sound waves produced in the acoustic chamber to the earpieces. The earpieces preferably include removable in-ear inserts, which may be constructed for insertion into the auditory canals of the user's ears. Since the in-ear inserts are removable, the headset can readily be configured for a variety of applications.

Abstract: An acoustic transmission connection, e.g. for a headset (13), comprises a sound tube (2) through which speech signals can be transmitted from a first end (16) to a transducer, e.g. a microphone, in a housing or a housing part (3) of the headset. In the sound tube (2) and in the housing part (3), means are provided for acoustic impedance matching and possibly means for achieving acoustic directivity.

Abstract: A sound sensing apparatus such as a communication headset uses a microphone and an acoustic valve controlled by a movable boom to operate in at least a compact and an extended-boom mode, with the valve variously coupling the microphone to different openings on the boom or the main body functioning as the acoustic sensing point.

Abstract: An earphone for use with portable communication devices (PCDs), particularly cellular phones, where the electro-magnetic (EM) radiation of the device is distanced from the head of the user, while acoustic waves are collected and brought through an acoustic tube to the ear of the user. The earphone may employ a coupler where the coupler contains a microphone and speaker acoustically insulated from each other. The coupler is positioned distant from both the ear of the user and the PCD. The coupler delivers acoustic waves to an acoustic tube for transmittal to the ear.

Abstract: A head phone comprises at least one loudspeaker of the type that rests on the outside of a user's ears, mounted on and held in place by a support. The loud speakers are equipped with a sound-concentrating duct that may be pivotable relative to the auditory canal of a user's ear so as to facilitate insertion of the duct a short distance into the auditory canal.