A method performed by an audio output device is provided for detecting instabilities and taking mitigating actions. Specifically, an A-weighted dBA level of a raw feedback signal exceeding a threshold level trigger, at least, muting the driver. The described methods apply to detecting instabilities across a broad frequency spectrum.

Aspects of the present disclosure provide methods, apparatuses, and systems for closed-loop sleep protection and/or sleep regulation. According to an aspect, a biosignal parameter and ambient noise are measured. The biosignal parameter is used to determine sleep condition of a subject. The sleep condition is determined based on one or more of personalized sleep data or historical sleep data collected using a subset of society. Based on the sleep condition, an arousal threshold is determined. Based on the ambient noise and the determined sleep condition, one or more actions are taken to regulate sleep and avoid sleep disruption.

A hearing protection device is presented. The hearing protection device includes a first hearing protection unit and a second hearing protection unit. Each of the first and second hearing protection units include a microphone that receives ambient sound, a processor that provides level dependent attenuation of the ambient sound, and a speaker that broadcasts the sound into a user's ear. The hearing protection device also includes a first communication unit, which broadcasts a digital push-to-talk signal over a first communication protocol. The first communication protocol is a low energy communication protocol. The hearing protection device also includes a second communication unit, which broadcasts a digital communication signal over a second communication protocol. The hearing protection device also includes a processor that facilitates pairing of the hearing protection device with a mobile device that receives the push-to-talk signal and, based on the push-to-talk signal, receives the digital communication signal and transmits the digital communication signal over a cellular network.

A hearing protection apparatus, a related method, and a server device is disclosed. The hearing protection apparatus comprises a set of microphones comprising a first microphone and a second microphone; a first positioning device for provision of first position data of the hearing protection apparatus; and a communication device connectable to the first microphone and the second microphone and the first positioning device, the communication device comprising a processing unit and an interface; wherein the processing unit is configured to: obtain a first audio input signal from the first microphone and a second audio input signal from the second microphone; determine first audio data based on the first audio input signal and the second audio input signal; and transmit the first audio data and the first position data to a radio unit.

A communication device, a related method, and a server device is disclosed. The communication device comprises a processing unit, a memory, and an interface connected to the processing unit. The processing unit is configured to: obtain a first input via the interface; determine a presence of an event based on the first input; in accordance with a determination that an event is present; determine a first audio output signal based on first event data indicative of the event; and output the first audio output signal via the interface.

A communication apparatus, a communication system, a related method, and a server device is disclosed. The communication apparatus comprises a communication device, a sensor interface device comprising a sensor interface configured to connect with a plurality of sensor devices including a first sensor device and a second sensor device, a memory, and a processing unit. The processing unit is configured to: obtain first sensor data via a first sensor interface of the sensor interface; obtain second sensor data via a second sensor interface of the sensor interface; and determine user data based on the first sensor data and the second sensor data.

The noise reduction and identification device adapts itself to a predetermined acoustic protection headset comprising two shells interconnected by means of mechanical links mounted on each shell removably at the end of two cylindrical shafts with collinear axes.

The device comprises an envelope made of elastic material of internal shape matching part of the external shape of at least one of the shells, said envelope having: openings corresponding to the shafts and around these openings, a thickness less than the distance between the mechanical connection mounted on a shell and said shell.

The elastic material constituting the casing has a coefficient of elasticity such that the deformation of the casing necessary for the opening corresponding to a shaft to deviate sufficiently from the shell for this shaft to come out entirely from this opening, is reversible.

Embodiments herein relate to ear-worn devices that can track exposure to hearing degrading conditions and/or provide notifications or warnings regarding the same. In an embodiment, an ear-worn device is included having a control circuit, a microphone in electrical communication with the control circuit, an electroacoustic transducer for generating sound in electrical communication with the control circuit, and a power supply circuit in electrical communication with the control circuit, wherein the ear-worn device is configured to track exposure to hearing degrading conditions over time via at least one of the microphone and a sensor package and wherein the ear-worn device is configured to store data regarding the tracked exposure. Other embodiments are also included herein.

In some examples, a system includes an article of personal protective equipment (PPE) comprising one or more sensors, the one or more sensors configured to generate usage data that is indicative of an operation of the article of PPE; and at least one computing device comprising a memory and one or more computer processors that: receive the usage data that is indicative of the operation of the article of PPE; apply the usage data to a safety learning model that predicts a likelihood of an occurrence of a safety event associated with the article of PPE based at least in part on previously generated usage data that corresponds to the safety event; and perform, based at least in part on predicting the likelihood of the occurrence of the safety event, at least one operation.

The present disclosure provides a hearing protection method capable of blocking external high-sound-pressure-level energy, including: a second sound pressure energy threshold being greater than a first sound pressure energy threshold; when an external sound energy value is greater than the first sound pressure energy threshold and is less than the second sound pressure energy threshold, enabling a preset active noise cancellation function; and when the external sound energy value is greater than the second sound pressure energy threshold, disabling the preset active noise cancellation function, and blocking high-sound-pressure-level energy by means of passive noise cancellation. The present disclosure can block the external high-sound-pressure-level energy.