Embodiments include an audio system comprising an audio device, a speaker, and a processor. The audio system is configured to receive data from one or more sensors corresponding to persons in a room and/or characteristics of a room, and responsively take action to modify one or more characteristics of the audio system, share the information with other systems or devices, and track data over time to determine patterns and trends in the data.

A communication system with a noise cancellation (NC) assembly providing adaptive or dynamic noise cancellation. The NC assembly includes a localizer module determining, during a communication session (active speaking or during idle times), a location of the active talker. The NC assembly includes a beam generator forming a beam in the determined direction of the active talker to enhance the active talker speech. Once the NC assembly has determined the position of the active talker, the NC assembly assigns a microphone of the microphone array or generated beam in that active direction to be the “active signal” source. The NC assembly assigns a second microphone or beam to be the noise source for NC purposes, and this source may be selected to be in acoustic shadow of the first microphone used as the active signal source or may be the farthest away in its position from the active talker's position.

A flux beam is generated as a function of flux magnitude patterns. A plurality of flux signals is detected via a sensor array comprising a plurality of sensors. A plurality of flux patterns is generated based on the plurality of flux signals, each of the plurality of flux patterns representing a respective one of the plurality of flux signals. A plurality of flux magnitude patterns is generated based on the plurality of flux patterns, each of the plurality of flux magnitude patterns representing an absolute value of a respective one of the plurality of flux patterns. A flux beam is then generated as a function of the plurality of flux magnitude patterns.

This signal processing device comprises: an acquisition unit for acquiring an acoustic signal; a measurement unit for measuring an acoustic level of the acoustic signal for every one of first frequency bands, which are a plurality of frequency bands of a preset first bandwidth; a calculation unit that, on the basis of the plurality of acoustic levels of the first frequency bands, identifies an acoustic feature quantity indicating the separation degree from normal acoustic levels of second frequency bands, which are a plurality of frequency bands of a second bandwidth that is wider than the first bandwidth; a first determination unit for determining whether the acoustic levels measured for every one of the first frequency bands are a first threshold value or greater; and a second determination unit for determining whether the acoustic feature quantity is a second threshold value or greater.

The invention generally relates a transducer apparatus in a device to obtain high signal-to-noise-ratio signals including speech in a noisy environment by a non-acoustic transducer or sensor adapted in two ways. One, adapted to sense free-field acoustical sounds and whose sensitivity is directive, and arranged to be most sensitive to a direction or axis according to the position or orientation of the device. Two, adapted to sense vibrations, movement or acceleration on the skin of the user of the device arising from the voice of the user. Embodiments and variations of the invention include where the two adaptions are combined, and with acoustical microphones. In the case of adaption two and with a microphone, a transducer apparatus resembling the characteristics of a close-talking microphone can be derived.

A first noise level, which is an estimated value of a magnitude of a noise component included in a first sound collection signal obtained from a first microphone which collects sound emitted from a first sound collection and amplification position is obtained, a second noise level, which is an estimated value of a magnitude of a noise component included in a second sound collection signal obtained from a second microphone which collects sound emitted from a second sound collection and amplification position is obtained, a ratio of a reproduced noisy sound level, which is an estimated value of a magnitude of noise at a position of a passenger at the second sound collection and amplification position in a case where the first noise level is reproduced from a second speaker placed at the second sound collection and amplification position, with respect to a second noisy sound level, which is an estimated value of a magnitude of noise corresponding to the second noise level at the position of the passenger at the second sound collection and amplification position is obtained, and a noise suppression amount is obtained so that a product of this ratio and the noise suppression amount becomes a constant set in advance.

A process may include detecting, via a controller, one or more microphones and one or more speakers in an area, measuring audio performance levels of the one or more microphones and the one or more speakers to identify one or more of a noise floor and a reverberation level, identifying an initial room performance rating based on the audio performance levels, applying optimized speaker tuning levels to the one or more speakers and the one or more microphones, measuring, via the one or more microphones, optimized audio performance levels of the one or more speakers based on the applied optimized speaker tuning levels, and generating a report to identify an optimized room performance rating based on the applied optimized speaker tuning.

A vehicular device is disclosed, including a processor and plurality of sensors. The processor receives sensor data and determines vehicle occupant respiration based on the sensor data. The sensors can include acoustic sensors and imaging sensors. The processor can be configured for executing a machine learning algorithm to determine the occupant respiration.

Devices, methods, and computer program products are provided herein for hearing safety. An example hearing safety device configured to be worn by a user includes an earmuff body that defines an interior cavity configured to receive the user's ear therein when worn by the user and an exterior surface opposite the interior cavity. The hearing safety device includes an ear lid attached to a surface of the interior cavity. The ear lid projects into the interior cavity from the surface of the interior cavity and defines a sealing surface configured to substantially seal an ear canal of the user's ear when the hearing safety device is worn by the user. The hearing safety device also includes an adjustment mechanism operably attached to the ear lid and configured to move the ear lid relative the interior cavity of the earmuff body.

A collaborative distributed microphone array is configured to perform or be used in sound quality operations. A distributed microphone array can be operated to provide sound quality operations including sound suppression operations and speech intelligibility operations for multiple users in the same environment.