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.

Conferencing systems and methods configured to generate true talker coordinates for use in camera tracking of talkers and objects in an environment and other room intelligence use cases are disclosed. The initial configuration and ongoing usage of conferencing systems can be improved by detecting and converting the locations of objects and talkers in an environment into a common coordinate system. The amount of time and effort by installers, integrators, and users, can be reduced leading to increased satisfaction with installation and usage of the conferencing system.

Microphone arrays comprise several microphone capsules, the outputs of which being electronically combined for directional recording of sound. The directional and frequency properties of the microphone array depend on the number and positions of the microphone array. In order to obtain the smallest possible microphone array with only few microphone capsules, which, however, has an essentially uniform directional and frequency dependence over a speech frequency range, is scalable and robust against small incorrect positioning of the capsules, fifteen or twenty-one microphone capsules (K.sub.15,11-K.sub.15,35, K.sub.21,11-K.sub.21,37) are arranged on a carrier such that they lie on three similar branches, each with the same number of microphone capsules, which are rotated against each other by 120°. Each of the microphone capsules lies on a corner of a triangle of a grid in a flat isometric coordinate system with three axes rotated by 120° against each other and forming the grid of equilateral triangles.

An electronic module is provided. The electronic module includes a first transducer and a second transducer. The first transducer is configured to radiate a first ultrasonic wave. The second transducer is configured to radiate a second ultrasonic wave. A location of the first transducer is configured to be adjustable with respect to the second transducer.

An apparatus including a first part, the first part having at least one camera configured to capture images; a second part having at least one microphone configured to capture at least one audio signal, wherein one of the first part or second part is able to move relative to the other part and the apparatus including circuitry configured to: determine a parameter associated with the move; generate at least one output audio signal based on the parameter associated with the move and the at least one audio signal.

A method is provided for acoustic source direction of arrival estimation and acoustic source separation, via spatial weighting of the dictionary based display of the steered response function calculated for a certain number of directions from spherical harmonic decomposition coefficients obtained from microphone array recordings of the sound field. The usage of spatial band limited functions of plane waves to represent more complex directional maps of the sound field constitutes the algorithm. These functions are calculated for pre-defined directions on an analysis surface (such as a sphere). The directions of arrival of sound sources are calculated with the same method in order to group source estimates to localize sound sources. Thereby, directions of arrival can be obtained from the recordings of the sound sources captured by means of a microphone array and following this, sound sources can be separated by using this direction information or predetermined source arrival directions.

Techniques for improving beamforming using filter coefficient values corresponding to virtual microphones are described. A system may define “virtual” microphone positions and determine corresponding filter coefficient values. These filter coefficient values may be applied to input audio data captured by actual physical microphones, enabling the system to improve performance of beamforming and/or to reduce a number of physical microphones without degrading performance. Offline testing and simulations may be performed to identify the best combination of virtual microphones and/or filter coefficient values for a particular look-direction. For example, the simulations may identify that a first filter coefficient corresponding to a first virtual microphone and a first direction will be associated with a first physical microphone and the first direction. During run-time processing, a device may generate beamformed audio data for the first direction by applying the first filter coefficient to input audio data captured by the first physical microphone.

A method (600) of operating a binaural ear level audio system in order to improve speech intelligibility and a binaural ear level audio system adapted to carry out said method.

One example method includes performing sound quality operations. Microphone arrays are used to cancel or reduce or suppress background noise and to enhance speech. Subjective user input is received by an orchestration engine. The orchestration engine generates an output that includes at least adjustments to a microphone array. Controlling the microphone array based, in part, on subjective user feedback, allows desired speech or desired sound to be heard more clearly by the user.

An internal failure detection method of an external failure detection system for industrial equipment, the external failure detection system including an array of transducers, the method including: (a) receiving a plurality of signals, each signal being measured by a corresponding transducer of the transducers array; (b) for each pair of transducers among a number of pairs of transducers, calculating at least one value of a correlation parameter between the pair of signals received at step (a) at the pair of transducers, by correlating at least part of the signals or of invertible transforms thereof; (c) for at least one transducer among the number of pairs of transducers, estimating from the values of the correlation parameters calculated at step (b) if the transducer is working properly.