In one example, a video endpoint obtains, from a vertical microphone array, a first audio signal including audio from a target sound source and audio from a horizontally-displaced sound source. The video endpoint obtains, from a horizontal microphone array, a second audio signal and a third audio signal both including the audio from the target sound source and the audio from the horizontally-displaced sound source. Based on the second audio signal and the third audio signal, the video endpoint determines at least one of a first degree of arrival of the audio from the target sound source or a second degree of arrival of the audio from the horizontally-displaced sound source. Based on the at least one of the first degree of arrival or the second degree of arrival, the video endpoint adjusts a gain of the first audio signal.

An example method of operation includes performing a plurality of polar pattern permutations based on a function of an inputted magnitude and phase adjustment range, determining a plurality of polar pattern outputs, creating a list of the polar pattern outputs, and creating a set of FIR filters to apply to a loudspeaker based on a selected one of the list of polar patterns.

Specifically programmed, integrated motor vehicle dangerous driving warning and control system and methods comprising at least one specialized communication computer machine including electronic artificial intelligence expert system decision making capability further comprising one or more motor vehicle electronic sensors for monitoring the motor vehicle and for monitoring activities of the driver and/or passengers including activities related to the use of cellular telephones and/or other wireless communication devices and further comprising electronic communications transceiver assemblies for communications with external sensor networks for monitoring dangerous driving situations, weather conditions, roadway conditions, pedestrian congestion and motor vehicle traffic congestion conditions to derive warning and/or control signals for warning the driver of dangerous driving situations and/or for controlling the motor vehicle driver use of a cellular telephone and/or other wireless communication devices.

A loudspeaker system includes a subwoofer. The subwoofer includes a housing having a plurality of walls which together define an acoustic cavity. The plurality of walls includes a front wall, a rear wall, a top wall, a bottom wall, and a plurality of sidewalls extending between the top and bottom walls and between the front and rear walls. A first transducer mounted to the front wall of the housing. The first transducer includes a diaphragm having a major axis and a minor axis. The major axis has a fist end proximate the bottom wall and an opposite, second end proximate the top wall, such that the major axis is arranged vertical, relative to ground when the subwoofer is rested on its bottom wall. The top wall has a handle such that the loudspeaker can be carried with the major axis arranged vertical to ground.

An electronic device includes sensors configured to detect an orientation of a display, driver logic, and a speaker array. The driver logic processes the audio data received by an interface to form audio output data, and forms driver signals representing the audio output data based on the orientation of the display detected by the one or more sensors. The speaker array receives the driver signals formed orientation of the display, and renders the audio output data for playback based on the driver signals.

An integrated audio-visual system is disclosed for delivering an event to one or more spectators. The integrated audio-visual system includes one or more loudspeakers that are positioned behind one or more visual displays to be effectively behind the one or more visual displays to be shielded from the field of view of the one or more spectators. The one or more visual displays are specially designed and manufactured to allow sound associated with the event to propagate from the one or more loudspeakers with minimal acoustical distortion and/or minimum acoustical vibration while presenting a visual representation of the event to the one or more spectators. Moreover, the one or more loudspeakers and the one or more visual displays are situated to be a predetermined displacement from each other to further minimize acoustical distortion.

An audio system for a wearable device dynamically updates acoustic transfer functions. The audio system is configured to estimate a direction of arrival (DoA) of each sound source detected by a microphone array relative to a position of the wearable device within a local area. The audio system may track the movement of each sound source. The audio system may form a beam in the direction of each sound source. The audio system may identify and classify each sound source based on the sound source properties. Based on the DoA estimates, the movement tracking, and the beamforming, the audio system generates or updates the acoustic transfer functions for the sound sources.

A signal processing system and method for delivering spatialized sound by optimizing sound waveforms from a sparse array of speakers to the ears of a user. The system can provide listening areas within a room or space, to provide spatialization sounds to create a 3D audio effect. In a binaural mode, a binary speaker array provides targeted beams aimed towards a user's ears.

Provided is a signal processing apparatus including a directivity processing unit which acquires sound signals of a plurality of channels, the sound signals being concurrently picked up by a microphone array being constituted of a plurality of microphones, the directivity processing unit generating sound signals for varying directivity by using the acquired sound signals of the plurality of channels, a number of the sound signals for varying the directivity being smaller than a number of the channels, directional characteristics of the sound signals for varying the directivity being different from each other.

Optimising water use in a way that avoids over watering or at least avoids or minimises water mobilisation may be useful. An irrigation control system is described, the system including a sound emitter arranged to emit sound towards a ground surface; a sound receiver arranged to receive sound emitted by the sound emitter and reflected or scattered from the ground surface. A controller then controls one or more irrigation parameters of an irrigator based at least in part on sound received by the sound receiver. In a further aspect, the irrigation control system senses the onset of surface water pooling or free water flow on the ground surface and the controller then controls irrigation parameters to reduce application of water in response to the sensed features. Related methods of controlling irrigation systems are also described.