One example discloses an apparatus for sound signal detection, comprising: a first wireless device including a first pressure sensor having a first acoustical profile and configured to capture a first set of acoustic energy within a time window; wherein the first wireless device includes a wireless signal input; wherein the first wireless device includes a processing element configured to: receive, through the wireless signal input, a second set of acoustic energy captured by a second pressure sensor, having a second acoustical profile, within a second wireless device and within the time window; apply a signal enhancement technique to the first and second sets of acoustic energy based on the first and second acoustical profiles; search for a predefined sound signal within the enhanced sets of acoustic energy; and initiate a subsequent set of sound signal detection actions if the search finds the sound signal.

Embodiments of the disclosure provide an interaction system, method and device. The interaction system includes an electroencephalogram electrode array covering a surface of a head of a user and including at least one electroencephalogram electrode; a micro microphone array comprising at least one micro microphone; a signal processing circuit electrically connected with the electroencephalogram electrode array and the micro microphone array respectively; a memory configured to store data and electrically connected with the signal processing circuit; and at least one program stored in the memory and configured to implement, when executed by the signal processing circuit, determining a position of a sound source based on audio signals of the sound source output by the micro microphone array, determining an electroencephalogram electrode of the electroencephalogram electrode array corresponding to the position of the sound source, and invoking the corresponding electroencephalogram electrode to output a touch signal to make the user perceiving.

A voice controlled assistant has a housing to hold one or more microphones, one or more speakers, and various computing components. The housing has an elongated cylindrical body extending along a center axis between a base end and a top end. The microphone(s) are mounted in the top end and the speaker(s) are mounted proximal to the base end. The microphone(s) and speaker(s) are coaxially aligned along the center axis. The speaker(s) are oriented to output sound directionally toward the base end and opposite to the microphone(s) in the top end. The sound may then be redirected in a radial outward direction from the center axis at the base end so that the sound is output symmetric to, and equidistance from, the microphone(s).

Offset cartridge microphones are provided that include multiple unidirectional microphone cartridges mounted in an offset geometry. Various desired polar patterns and/or desired steering angles can be formed by processing the audio signals from the multiple cartridges, including a toroidal polar pattern. The offset geometry of the cartridges may include mounting the cartridges so that they are immediately adjacent to one another and so that their center axes are offset from one another. The microphones may have a more consistent on-axis frequency response and may more uniformly form desired polar patterns and/or desired steering angles by reducing the interference and reflections within and between the cartridges.

A microphone joint is provided that includes movable parts having preferable electrical connection, movability, and fixing force. The microphone joint is to be coupled to a unit case accommodating a microphone unit and a connector case accommodating a connector configured to output signals from the microphone unit to an external device. The microphone joint includes a first unit to be coupled to the unit case, a second unit to be coupled to the connector case, and a conductive member disposed between the first unit and the second unit. The first unit is supported by the second unit with the conductive member and is rotatable relative to the second unit. The conductive member has resilience.

A digital camera includes a body that contains a CCD image sensor for capturing an object image, a monitor that is pivotably mounted relative to the body and displays an image signal relating to the object image captured by the CCD image sensor, a microphone, and a controller for changing sound pickup directivity of the microphone according to an orientation of the monitor relative to the body. This increases sound pickup sensitivity for voice-enabled shutter operation.

A system includes a first device having a microphone associated with a voice user interface (VUI) and a first network interface, a first processor connected to the first network interface and controlling the first device, a second device having a speaker and a second network interface, and a second processor connected to the second network interface and controlling the second device. Upon connection of the second network interface to a network to which the first network interface is connected, the second processor causes the second device to output an identifiable sound through the speaker. Upon detecting the identifiable sound via the microphone, the first processor adds information identifying the second device to a data store of devices to be controlled when the first device activates the VUI.

An electronic device including a voice obtaining microphone configured to receive a voice signal including a noise at a first level; a noise obtaining microphone configured to receive a voice signal including a noise at a second level higher than the first level; and a controller configured to estimate the noise at the second level from the voice signal received by the noise obtaining microphone, remove the noise at the first level from the voice signal received by the voice obtaining microphone based on the estimated noise, and perform an operation corresponding to the voice signal having the noise at the first level eliminated therefrom.

Systems, methods, and apparatus for corona detection using audio data are provided. In one example embodiment, the method includes obtaining, by one or more computing devices, audio data indicative of audio associated with an electrical system for at least one time interval. The method includes partitioning, by the one or more computing devices, the audio data for the time interval into a plurality of time windows. The method includes determining, by the one or more computing devices, a signal indicative of a presence of corona based at least in part on audio data collected within an identified time window of the plurality of time windows relative to audio data collected for a remainder of the time interval.

An apparatus, method and computer program, the apparatus comprising: processing circuitry; and memory circuitry including computer program code, the memory circuitry and the computer program code configured to, with the processing circuitry, enable the apparatus to: enable a wireless connection to be established with an electronic device; capture an audio signal and enable the captured audio signal to be sent to the electronic device using the wireless connection to enable the captured audio signal to be used to create an enhanced audio signal; and wherein the apparatus is arranged to be removeably attachable to the electronic device.