A tuned-frequency-spectrum earpiece for selectively tuning audio frequencies that enter an inner ear of a user wearing the earpiece, the earpiece including a base having an emitter end and receiver end, the base including a channel that passes through an entirety of the base; a sound-attenuation plug, wherein the sound-attenuation plug is configured to couple to the base such that the sound-attenuation plug surrounds at least a portion of the channel of the base; a first filter device configured to insert into the channel of the base and to selectively reject undesired frequencies of the audio frequencies that enter the earpiece; and a frequency-selective sound collector operatively coupled to the receiver end of the base and configured to increase an amount of desired frequencies of the audio frequencies that enter the first filter device. Some embodiments increase the amount of sound from some directions while reducing sound from other directions.

An ear and ear headphone shielding assembly, for comfortably laying on an ear with headphones therein, includes a panel and a cushion member. The panel has an inner surface and an outer surface. The inner surface is concavely shaped, while the outer surface is convexly shaped. The panel has a perimeter edge including a top edge, a bottom edge, a first side edge, and a second side edge. The inner surface is shaped as to form a hold to receive an ear such that the ear is adjacent to the inner surface. A cushion member is attached to the perimeter edge as to be coextensive with the top edge, the first side edge and the second side edge, leaving the bottom edge free of the cushion member.

An ear and ear headphone shielding assembly, for comfortably laying on an ear with headphones therein, includes a panel and a cushion member. The panel has an inner surface and an outer surface. The inner surface is concavely shaped, while the outer surface is convexly shaped. The panel has a perimeter edge including a top edge, a bottom edge, a first side edge, and a second side edge. The inner surface is shaped as to form a hold to receive an ear such that the ear is adjacent to the inner surface. A cushion member is attached to the perimeter edge as to be coextensive with the top edge, the first side edge and the second side edge, leaving the bottom edge free of the cushion member.

A system has multiple audio-enabled devices that communicate with one another over an open microphone mode of communication. When a user says a trigger word, the nearest device validates the trigger word and opens a communication channel with another device. As the user talks, the device receives the speech and generates an audio signal representation that includes the user speech and may additionally include other background or interfering sound from the environment. The device transmits the audio signal to the other device as part of a conversation, while continually analyzing the audio signal to detect when the user stops talking. This analysis may include watching for a lack of speech in the audio signal for a period of time, or an abrupt change in context of the speech (indicating the speech is from another source), or canceling noise or other interfering sound to isolate whether the user is still speaking. Once the device confirms that the user has stopped talking, the device transitions from a transmission mode to a reception mode to await a reply in the conversation.

Embodiments relate generally to devices, systems, and methods for assessing a hearing protection device. A method for assessing a hearing protection device may comprise monitoring sounds with a hearing protection device; transmitting sound measurements from the hearing protection device to a portable electronic device; transmitting the sound measurements from the portable electronic device to a server; comparing, with the portable electronic device or the server, sound measurements to a look-up table; suggesting, with the portable electronic device, the most suitable hearing protection device to be worn based on a comparison between the sound measurements and the look-up table.

An example apparatus for hearing protection and communication includes safety glasses including a vibration sensor to capture speech from a user. The apparatus also includes hearing protectors communicatively coupled to the safety glasses and one or more other devices. The hearing protectors are to reduce a volume of an ambient sound and play back captured speech from the one or more other devices. The apparatus also further includes a number of wireless communication elements to communicatively couple the safety glasses, the hearing protectors, and at least a second apparatus for hearing protection and communication.

A garment engaged in a sound-reducing state includes a first garment portion formed with a sound-absorbing material with transmission loss properties and configured to surround a wearer's head and ears to form a substantially enclosed reduced-sound zone, when the first garment portion is engaged in a sound-reducing state. The garment also includes a second garment portion operable with the first garment portion, for example, where the first garment portion is a hood and the second garment portion is the body of a hooded sweatshirt. In the sound-reducing state, the sound-absorbing barrier material reduces an amount of sound passing through the sound-absorbing material and over the material on the inside of the reduced-sound zone into the substantially enclosed reduced-sound zone.

A multi-glazed window formed by a frame produced from profiles supporting at least two glass panes separated by an air layer. The window incorporating an active noise reduction device for a noise coming from a noise source. At least one loudspeaker an actuator associated with the membrane, which actuator is capable of inducing a vibratory movement of said membrane, at least one control microphone carried by the frame, said microphone being installed in the air layer in order to sense the acoustic signals in said air layer, and a control electronics suitable for controlling the actuator according to the acoustic signals sensed by the control microphone.

A wearable device may include a processor configured to detect a self-voice signal, based on one or more transducers. The processor may be configured to separate the self-voice signal from a background signal in an external audio signal based on using a multi-microphone speech generative network. The processor may also be configured to apply a first filter to an external audio signal, detected by at least one external microphone on the wearable device, during a listen through operation based on an activation of the audio zoom feature to generate a first listen-through signal that includes the external audio signal. The processor may be configured to produce an output audio signal that is based on at least the first listen-through signal that includes the external signal, and is based on the detected self-voice signal.

A manually operable dispenser for dispensing earplugs is provided. An exemplary dispenser includes a first dispensing mechanism portion and a second dispensing mechanism portion that interacts with the first dispensing mechanism portion during rotation of the handle. Interaction between the first dispensing mechanism portion and the second dispensing mechanism affects a rotational resistance () at the handle such that rotational resistance () varies between a maximum rotational resistance (max) and a minimum rotational resistance (min) as the handle is rotated by a user.