Abstract: An acoustic device comprising an enclosure having an enclosure wall that defines an enclosure volume; a first mass movably coupled to the enclosure, the first mass comprising a sound radiating surface, a voice coil and a first suspension member; a second mass movably coupled to the enclosure, the second mass comprising a magnet assembly and a second suspension member, and wherein the first suspension member couples the first mass to the second mass, the second suspension member couples the magnet assembly to the enclosure wall, and the second suspension member is tuned to reduce enclosure vibrations caused by a movement of the first mass and the second mass relative to the enclosure.

Abstract: An acoustic device comprising an enclosure having an enclosure wall that defines an enclosure volume; a first mass movably coupled to the enclosure, the first mass comprising a sound radiating surface, a voice coil and a first suspension member; a second mass movably coupled to the enclosure, the second mass comprising a magnet assembly and a second suspension member, and wherein the first suspension member couples the first mass to the second mass, the second suspension member couples the magnet assembly to the enclosure wall, and the second suspension member is tuned to reduce enclosure vibrations caused by a movement of the first mass and the second mass relative to the enclosure.

Abstract: An acoustic device comprising an enclosure having an enclosure wall that defines an enclosure volume; a first mass movably coupled to the enclosure, the first mass comprising a sound radiating surface, a voice coil and a first suspension member; a second mass movably coupled to the enclosure, the second mass comprising a magnet assembly and a second suspension member, and wherein the first suspension member couples the first mass to the second mass, the second suspension member couples the magnet assembly to the enclosure wall, and the second suspension member is tuned to reduce enclosure vibrations caused by a movement of the first mass and the second mass relative to the enclosure.

Abstract: A transducer assembly including an enclosure having a bottom enclosure wall and a side enclosure wall that together define an enclosure volume; a first mass movably coupled to the enclosure and defining a first radiating area; a second mass movably coupled to the enclosure and defining a second radiating area; and a third mass movably coupled to the enclosure and defining a third radiating area, the third mass comprising a passive radiator and a third suspension member coupling the passive radiator to the enclosure, and wherein the first radiating area and the second radiating area have a combined radiating area that is different than the third radiating area and the combined radiating area is balanced relative to the third radiating area to reduce enclosure vibrations caused by a movement of the first mass and the second mass relative to the enclosure.

Abstract: An acoustic device comprising an enclosure having an enclosure wall that defines an enclosure volume; a first mass movably coupled to the enclosure, the first mass comprising a sound radiating surface, a voice coil and a first suspension member; a second mass movably coupled to the enclosure, the second mass comprising a magnet assembly and a second suspension member, and wherein the first suspension member couples the first mass to the second mass, the second suspension member couples the magnet assembly to the enclosure wall, and the second suspension member is tuned to reduce enclosure vibrations caused by a movement of the first mass and the second mass relative to the enclosure.

Abstract: A transducer assembly including an enclosure having a bottom enclosure wall and a side enclosure wall that together define an enclosure volume; a first mass movably coupled to the enclosure and defining a first radiating area; a second mass movably coupled to the enclosure and defining a second radiating area; and a third mass movably coupled to the enclosure and defining a third radiating area, the third mass comprising a passive radiator and a third suspension member coupling the passive radiator to the enclosure, and wherein the first radiating area and the second radiating area have a combined radiating area that is different than the third radiating area and the combined radiating area is balanced relative to the third radiating area to reduce enclosure vibrations caused by a movement of the first mass and the second mass relative to the enclosure.

Abstract: An eyeglass headphone with a frame that is constructed and arranged to be carried by the head of a wearer, the frame comprising a bridge that is adapted to be supported by the wearer's nose, and a left temple and a right temple that extend rearwardly from the bridge, toward the left and right ears of the wearer, respectively, and a dipole loudspeaker built into the frame, where the dipole loudspeaker comprises a driver that emits front-side acoustic radiation from its front side, and emits rear-side acoustic radiation from its rear side. The frame comprises at least first and second sound-emitting openings, wherein the first sound-emitting opening is constructed and arranged to emit front-side acoustic radiation and the second sound-emitting opening is constructed and arranged to emit rear-side acoustic radiation.

Abstract: A loudspeaker includes a first electro-acoustic driver that creates sound waves when operated, and a housing. A first baffle is coupled to the housing and the first electro-acoustic driver. A first speaker grille covers the first electro-acoustic driver. A first gasket is disposed between the first baffle and the first speaker grille. The first gasket comprises a first set of energy directors to reduce buzzing between the first gasket and the first baffle.

Abstract: An eyeglass headphone with a frame that is constructed and arranged to be carried by the head of a wearer, the frame comprising a bridge that is adapted to be supported by the wearer's nose, and a left temple and a right temple that extend rearwardly from the bridge, toward the left and right ears of the wearer, respectively, and a dipole loudspeaker built into the frame, where the dipole loudspeaker comprises a driver that emits front-side acoustic radiation from its front side, and emits rear-side acoustic radiation from its rear side. The frame comprises at least first and second sound-emitting openings, wherein the first sound-emitting opening is constructed and arranged to emit front-side acoustic radiation and the second sound-emitting opening is constructed and arranged to emit rear-side acoustic radiation.

Abstract: An eyeglass headphone with a frame that is constructed and arranged to be carried by the head of a wearer, the frame comprising a bridge that is adapted to be supported by the wearer's nose, and a left temple and a right temple that extend rearwardly from the bridge, toward the left and right ears of the wearer, respectively, and a dipole loudspeaker built into the frame, where the dipole loudspeaker comprises a driver that emits front-side acoustic radiation from its front side, and emits rear-side acoustic radiation from its rear side. The frame comprises at least first and second sound-emitting openings, wherein the first sound-emitting opening is constructed and arranged to emit front-side acoustic radiation and the second sound-emitting opening is constructed and arranged to emit rear-side acoustic radiation.

Abstract: An eyeglass headphone with a frame that is constructed and arranged to be carried by the head of a wearer, the frame comprising a bridge that is adapted to be supported by the wearer's nose, and a left temple and a right temple that extend rearwardly from the bridge, toward the left and right ears of the wearer, respectively, and a dipole loudspeaker built into the frame, where the dipole loudspeaker comprises a driver that emits front-side acoustic radiation from its front side, and emits rear-side acoustic radiation from its rear side. The frame comprises at least first and second sound-emitting openings, wherein the first sound-emitting opening is constructed and arranged to emit front-side acoustic radiation and the second sound-emitting opening is constructed and arranged to emit rear-side acoustic radiation.

Abstract: An eyeglass headphone with a frame that is constructed and arranged to be carried by the head of a wearer, the frame comprising a bridge that is adapted to be supported by the wearer's nose, and a left temple and a right temple that extend rearwardly from the bridge, toward the left and right ears of the wearer, respectively, and a dipole loudspeaker built into the frame, where the dipole loudspeaker comprises a driver that emits front-side acoustic radiation from its front side, and emits rear-side acoustic radiation from its rear side. The frame comprises at least first and second sound-emitting openings, wherein the first sound-emitting opening is constructed and arranged to emit front-side acoustic radiation and the second sound-emitting opening is constructed and arranged to emit rear-side acoustic radiation.

Abstract: A loudspeaker includes a first electro-acoustic driver that creates sound waves when operated, and a housing. A first baffle is coupled to the housing and the first electro-acoustic driver. A first speaker grille covers the first electro-acoustic driver. A first gasket is disposed between the first baffle and the first speaker grille. The first gasket comprises a first set of energy directors to reduce buzzing between the first gasket and the first baffle.

Abstract: A loudspeaker comprising includes an enclosure, a driver element located within the enclosure and including a cone diaphragm, a first cavity defined by a first cavity wall and the cone diaphragm, the first cavity extending from the cone diaphragm and having a first opening which has an area less than an area of the cone diaphragm, an exit element extending from the first opening of the first cavity and acoustically coupling the first cavity to an environment outside of the enclosure, a second cavity, defined by a second cavity wall within the enclosure extending from a second opening in the first cavity, and an acoustic element in the second opening acoustically coupling the second cavity to the first cavity. The second cavity is not otherwise acoustically coupled to the environment outside of the enclosure.

Abstract: A loudspeaker comprising includes an enclosure, a driver element located within the enclosure and including a cone diaphragm, a first cavity defined by a first cavity wall and the cone diaphragm, the first cavity extending from the cone diaphragm and having a first opening which has an area less than an area of the cone diaphragm, an exit element extending from the first opening of the first cavity and acoustically coupling the first cavity to an environment outside of the enclosure, a second cavity, defined by a second cavity wall within the enclosure extending from a second opening in the first cavity, and an acoustic element in the second opening acoustically coupling the second cavity to the first cavity.

Abstract: A speaker includes a housing and four substantially similar electro-acoustic drivers secured inside the housing. The drivers are driven by substantially the same audio signal and are arranged such that the net mechanical vibrational force between the drivers and the housing is substantially zero. Four substantially similar passive radiators are secured inside the housing and driven by acoustic energy from the four drivers. The passive radiators are arranged such that the net mechanical vibrational force between the passive radiators and the housing is substantially zero.

Abstract: A suspension element for mechanically coupling an acoustic diaphragm to a stationary element. The suspension element is characterized by a total compliance. The total compliance includes a shear compliance and a beam compliance. The beam compliance is not significantly larger than the shear compliance.

Abstract: A speaker includes a housing and four substantially similar electro-acoustic drivers secured inside the housing. The drivers are driven by substantially the same audio signal and are arranged such that the net mechanical vibrational force between the drivers and the housing is substantially zero. Four substantially similar passive radiators are secured inside the housing and driven by acoustic energy from the four drivers. The passive radiators are arranged such that the net mechanical vibrational force between the passive radiators and the housing is substantially zero.

Abstract: A suspension element for mechanically coupling an acoustic diaphragm to a stationary element. The suspension element is characterized by a total compliance. The total compliance includes a shear compliance and a beam compliance. The beam compliance is not significantly larger than the shear compliance.

Abstract: A suspension element for mechanically coupling an acoustic diaphragm to a stationary element. The suspension element is characterized by a total compliance. The total compliance includes a shear compliance and a beam compliance. The beam compliance is not significantly larger than the shear compliance.