This application provides a speaker apparatus includes: a speaker sound emission unit that includes a speaker diaphragm and configured to convert an electrical signal into a sound signal by using the speaker diaphragm; a horn includes a sound inlet and a sound outlet, the speaker sound emission unit is disposed on the sound inlet, and the horn is configured to amplify the sound signal and then propagate an amplified sound signal through the sound outlet; and a phase plug, configured to adjust a phase and/or an amplitude of the sound signal from the sound inlet; where relative locations of the speaker diaphragm and the phase plug remain unchanged to form an incompressible air cavity.

An earphone device having a concentrating tube includes an annular magnet, a first yoke, a second yoke, a concentrating tube, a speaker assembly, and a passive diaphragm. The first and second yokes are respectively connected to first and second magnetic pole faces of the annular magnet. The concentrating tube is received in a central through hole of the annular magnet. The concentrating tube includes first and second open ends. The speaker assembly includes a voice coil and an active diaphragm. The passive and active diaphragms are at two opposite ends of the concentrating tube. The active and passive diaphragms are respectively close to the first and second open ends. A gas flow generated by the active diaphragm is gathered by the concentrating tube and pushes the passive diaphragm. A gas flow generated by the passive diaphragm returns through the concentrating tube to push the active diaphragm and transmits acoustic waves.

A power stethoscope with integrated speaker includes a compact main body that houses a microphone, a speaker and a sound funnel. The sound funnel has a cap along the bottom end that permits the passage of sound waves for capture by the microphone. A control unit having a processor, a memory and a digital filter is communicatively linked to the microphone and speaker. The memory can record the microphone output, and a communication can transmit the same to an external device.

There is provided a sound system comprising: a first reflector arranged overhead and to reflect sound into a listening environment, a sound emitting device comprising a sound source and a second reflector, the sound source being configured to direct a sound beam with a first beam angle into the second reflector, the sound emitting device being any of a horn or parabolic loudspeaker. The second reflector is shaped to reflect the sound beam with a second beam angle towards the first reflector, and the first reflector is shaped such as it reflects the sound beam back to the listening environment with a third beam angle. The second beam angle is less than the first beam angle, and the third beam angle is greater than the second beam angle. There is further provided a sound system wherein three of more reflectors are used to reflect sound back down to the listening environment. Additionally, at least one sound absorbing device of a three dimensional shape is positioned in between the overhead reflectors.

A receiver assembly comprising a first and a second receiver housing and a spout. The second receiver housing is positioned over a first sound outlet port of the first receiver housing and the spout is positioned over a second outlet port of the second receiver housing. An acoustic duct is located between the first and second receiver housing acoustically connecting the first sound outlet port to the spout and is provided with an acoustic mass.

The present disclosure relates to an electronic device having a side acoustic emission speaker. The electronic device may include a speaker module accommodated in the electronic device. The speaker module may include a first substrate, a speaker having a lower surface formed on the first substrate, a waterproof member contacting at least one part of an upper surface and at least one part of a first side surface of the speaker, and a second substrate contacting a second side surface of the speaker and overlapping the upper surface of the speaker. The second substrate may include a first subarea displaced from the upper surface of the speaker by a first distance and having a first thickness and a second subarea displaced from the upper surface of the speaker by a second distance and having a second thickness. A space disposed between the waterproof member and the first subarea may include an acoustic emission hole configured to transfer a sound emitted by the speaker to the outside of the electronic device.

A driver for a loudspeaker including an inner magnet disposed within a housing, an outer magnet disposed within the housing radially outward of the inner magnet, an inner voice coil having a first diameter, an outer voice coil having a second diameter, the second diameter being larger than the first diameter, where poles of the inner and outer magnets are oppositely disposed, where the inner magnet is configured to contribute only to a magnetic circuit of the inner voice coil, and where the outer magnet is configured to contribute to the magnetic circuit of the inner voice coil and to a magnetic circuit of the outer voice coil.

A microphone includes a microphone unit that converts a sound into an electrical signal. A tubular housing houses the microphone unit and includes a rear opening portion in a side surface. A step portion surrounds the rear opening portion in an inner surface of the housing. A plate-like shielding member is attached to the step portion from an inner surface side of the housing, and a circuit board housed in the housing in contact with the shielding member includes a ground pattern its side surface and in a contact position between the circuit board and the shielding member.

An interior component of a vehicle comprises a carrier having a front face directed toward a passenger compartment of the vehicle and an opposite rear face; a speaker including an at least partially transparent diaphragm and a transducer coupled to the diaphragm. Movement of the transducer causes vibration of the diaphragm to generate sound by vibration of the diaphragm, the diaphragm having a front face directed towards the passenger compartment and an opposite rear face. The carrier provides a support along at least part of the periphery of the diaphragm where the diaphragm is attached to the carrier where the front face and the rear face of the diaphragm are free of the carrier across a part of the diaphragm surface so that the diaphragm is suspended in the carrier of the interior component.

A smartpen configured for hands free audio recording is disclosed. One example smartpen may be configured so that a microphone contained in the smartpen is automatically oriented for unobstructed reception of ambient sound when the smartpen is placed on a supporting surface. Another example smartpen may have a weight distribution that causes the smartpen to roll to a desired orientation of the microphone when the smartpen is placed on a supporting surface with the microphone in a different orientation. Still another example smartpen may have one or more surface features disposed on a surface of the body of the smartpen, where the surface features are configured to position the microphone in a desired orientation when the smartpen is placed on a supporting surface.