A hearing system comprises a hearing device worn on the head, or fully or partially implanted in the head, of a user, and external audio transmitters. The hearing system allows wireless communication to be established between the hearing device and the audio transmitters. The hearing device comprises microphones providing respective electric input signals; a beamformer filter providing a beamformed signal from the electric input signals; and an output unit. The hearing system further comprises a selector/mixer for selecting and possibly mixing one or more of the electric input signals or the beamformed signal and external electric signals from the audio transmitters, and providing a current input sound signal based thereon for presentation to the user. The selector/mixer is controlled by a source selection processor, which determines the source selection control signal based on a comparison of the beamformed signal and the external electric sound signals or processed versions thereof.

The present disclosure is of a bone conduction sound transmission device. The bone conduction sound transmission device includes of a laminated structure and a base structure. The laminated structure is formed by a vibration unit and an acoustic transducer unit. The base structure is configured to load the laminated structure. At least one side of the laminated structure is physically connected to the base structure. The base structure vibrates based on an external vibration signal, and the vibration unit deforms in response to the vibration of the base structure; and the acoustic transducer unit generates an electrical signal based on the deformation of the vibration unit.

A vibration sensor includes a vibration receiver and an acoustic transducer. The vibration receiver includes a housing and a vibration unit. The housing forms an acoustic cavity. The vibration unit is located in the acoustic cavity and divides the acoustic cavity into a first acoustic cavity and a second acoustic cavity. The acoustic transducer is acoustically connected to the first acoustic cavity. The housing is configured to generate vibration based on an external vibration signal. The vibration unit vibrates in response to the vibration of the housing and transmits, through the first acoustic cavity, the vibration to the acoustic transducer to generate an electrical signal. The vibrating unit includes a mass element and an elastic element. A deviation between cross-sectional areas of the mass element and the first acoustic cavity perpendicular to a vibration direction of the mass unit is less than 25%.

The present disclosure provides a bone conduction speaker, comprising: a vibration assembly, the vibration assembly including a vibration element and a vibration housing, the vibration element being used to convert an electrical signal into a mechanical vibration, the vibration housing being used to contact with a face of a user and to transmit the mechanical vibration to the user in a bone conduction manner to produce a sound; and a resonance assembly including a first elastic element and a mass element, the mass element being connected to the vibration assembly by the first elastic element, wherein the vibration assembly causes the resonance assembly to vibrate, the vibration of the resonance assembly weakening a vibration amplitude of the vibration housing.

A hearing aid, comprising a microphone configured to produce a microphone output signal representing sounds transduced by the microphone; an earphone speaker configured to convert an equalized output electrical signal into acoustic waves; a Bluetooth wireless transceiver; and an automated processor configured to spot a plurality of different keywords; and selectively control a Bluetooth communication partner dependent on the spotted keyword.

A bone conduction apparatus according to the present invention includes: a decoding unit decoding audio data; a digital-to-analog converter converting the decoded audio data to an analog signal, and outputting an analog audio signal; a bone conduction unit converting the analog audio signal to a bone conduction signal, and outputting the bone conduction signal; a metal electrode placed at an outside of a housing in which the bone conduction unit is provided; a frequency generator generating a transcutaneous electrical nerve stimulation (TENS) signal; and a TENS signal amplification unit amplifying the TENS signal, and applying the resulting signal to the metal electrode.

Disclosed is a sound vibration sensor using a piezoelectric element having a cantilever structure. The sound vibration sensor includes a housing forming an exterior, a piezoelectric element having a cantilever structure installed in the housing, a support structure supporting a fixed end of the piezoelectric element, a weight attached to a free end of the piezoelectric element, and an energizing part configured to transmit an output from the piezoelectric element, wherein the sound vibration sensor comes into contact with a speaker's body, receives vibration of the body generated when the speaker utters a sound through the housing, and amplifies the vibration by the free end of the piezoelectric element to detect the voice vibration of the speaker using a piezoelectric characteristic of the piezoelectric element.

Provided is a bone conduction hearing aid device, including: a housing, a piezoelectric vibration assembly and a vibration transmission element, the piezoelectric vibration assembly and the vibration transmission element are both arranged in the housing, a first end of the vibration transmission element is connected with the piezoelectric vibration assembly, a second end of the vibration transmission element is connected with the housing, and the housing includes a vibration output portion that outputs vibration through contact.

An external component of a bone conduction device, including a vibrator and a platform configured to transfer vibrations from the vibrator to skin of the recipient, wherein the vibrator and platform are configured to quick connect and quick disconnect to and from, respectively, one another.

Some systems, devices and methods detailed herein provide a system for use in determining metrics of a subject. The system can provide, as an output, a function-metric value determined based on a defined relationship between physiological measures and a chronological age.