In a method for transmitting and reproducing acoustic information, acoustic data is provided which comprises a first data component and a second data component, wherein the first data component does not contain speech information, and the second data component contains speech information. Each piece of data is reproduced by first and second audio reproduction means (30, 40) such that all users (101, 102) can hear the acoustic signals emitted by the first audio reproduction means (30) together, and the acoustic signals emitted by the second audio reproduction means (40) can be heard substantially only by the corresponding user (101, 102).

An apparatus for fitting an earphone device in an ear canal using an anatomically shaped, compressible cushion member with a through channel and a spacer member extending from its side wall, but not connecting to its other side wall, thus providing sufficient acoustic signal transmission to the ear canal in all circumstances by ensuring a 5 minimum clearance C between the opposing side walls of the channel in both a non-compressed state and a compressed state of the cushion member, while also allowing for a flexible and comfortable design.

An apparatus for fitting an earphone device in an ear canal using an anatomically shaped, compressible cushion member with a through channel and a spacer member extending from its side wall, but not connecting to its other side wall, thus providing sufficient acoustic signal transmission to the ear canal in all circumstances by ensuring a 5 minimum clearance C between the opposing side walls of the channel in both a non-compressed state and a compressed state of the cushion member, while also allowing for a flexible and comfortable design.

To accurately achieve synchronization between a master and a slave that perform wireless communication.

A synchronization device that synchronizes time-series data between a master and a slave by wireless communication, the master including a packet transmission unit that transmits a plurality of packets at a predetermined interval, and the slave including a synchronization unit that synchronizes time-series data transmitted by the master and time-series data received by the slave on the basis of the interval between the plurality of packets.

To accurately achieve synchronization between a master and a slave that perform wireless communication.

A synchronization device that synchronizes time-series data between a master and a slave by wireless communication, the master including a packet transmission unit that transmits a plurality of packets at a predetermined interval, and the slave including a synchronization unit that synchronizes time-series data transmitted by the master and time-series data received by the slave on the basis of the interval between the plurality of packets.

A method for audio beam steering, tracking, and audio effects for an immersive reality application is provided. The method includes receiving, from an immersive reality application, a first audio waveform from a first acoustic source to provide to a user of a headset, identifying a perceived direction for the first acoustic source relative to the headset based on a location of the first acoustic source, and providing, to a first speaker in a client device, an audio signal including the first audio waveform, wherein the audio signal includes a time delay and an amplitude of the first audio waveform based on the perceived direction. A non-transitory, computer-readable medium storing instructions which, when executed by a processor, cause a system to perform the above method, and the system, are also provided.

A method for audio beam steering, tracking, and audio effects for an immersive reality application is provided. The method includes receiving, from an immersive reality application, a first audio waveform from a first acoustic source to provide to a user of a headset, identifying a perceived direction for the first acoustic source relative to the headset based on a location of the first acoustic source, and providing, to a first speaker in a client device, an audio signal including the first audio waveform, wherein the audio signal includes a time delay and an amplitude of the first audio waveform based on the perceived direction. A non-transitory, computer-readable medium storing instructions which, when executed by a processor, cause a system to perform the above method, and the system, are also provided.

A method to assess user condition for wearable devices using electromagnetic sensors is provided. The method includes receiving a signal from an electromagnetic sensor, the signal being indicative of a health condition of a user of a wearable device, selecting a salient attribute from the signal, and determining, based on the salient attribute, the health condition of the user of the wearable device. A non-transitory, computer-readable medium storing instructions which, when executed by a processor, cause a system to perform the above method, and the system, are also provided.

A method to combine contact and acoustic microphones in a headset for voice wake and voice processing in immersive reality applications is provided. The method includes receiving, from a contact microphone, a first acoustic signal, determining a fidelity and a quality of the first acoustic signal, receiving, from an acoustic microphone, a second acoustic signal, and when the fidelity and quality of the first acoustic signal exceeds a pre-selected threshold, combining the first acoustic signal and the second acoustic signal to provide an enhanced acoustic signal to a smart glass user. A non-transitory, computer-readable medium storing instructions to cause a headset to perform the above method, and the headset, are also provided.

A method to combine contact and acoustic microphones in a headset for voice wake and voice processing in immersive reality applications is provided. The method includes receiving, from a contact microphone, a first acoustic signal, determining a fidelity and a quality of the first acoustic signal, receiving, from an acoustic microphone, a second acoustic signal, and when the fidelity and quality of the first acoustic signal exceeds a pre-selected threshold, combining the first acoustic signal and the second acoustic signal to provide an enhanced acoustic signal to a smart glass user. A non-transitory, computer-readable medium storing instructions to cause a headset to perform the above method, and the headset, are also provided.