A loudspeaker system 200 includes an overhead sound image generating (e.g., ATMOS) elevation sound projecting loudspeaker transducer or array 210 for reproducing an elevation signal and a second cancellation loudspeaker or transducer array 250 for generating and projecting a direct signal cancellation. The cancellation speaker or array 250 is driven with a filtered, polarity reversed version of the elevation signal to cancel undesired direct sound 160 from elevation speaker 210 which would otherwise diminish the quality of elevation signal reproduction for a listener L.

An example of a vehicular apparatus includes a first speaker configured to output a first sound to a periphery of a driver seat based on a first sound signal, a second speaker configured to output a second sound to the periphery of the driver seat based on a second sound signal, and a speaker driving circuit configured to generate the first sound signal and the second sound signal based on a sound source. The second sound signal has an anti-phase opposite to a phase of the first sound signal.

Example embodiments relate to an apparatus, method and computer-program product relating to controlling output of audio data. An example method is disclosed, comprising outputting a first set of audio data via one or more loudspeakers, capturing, via one or more microphones, a real-world audio scene to provide a second set of audio data for output via the one or more loudspeakers and identifying which of the first set of audio data and at least part of the real-world audio scene has the auditory attention of the user based on a measured neural activity of the user. The method may also comprise controlling output of at least some of the first and/or second set of audio data via the one or more loudspeakers based on the identification.

Methods and systems are described for mitigating acoustic feedback via an open ear device. In various examples, systems or methods may receive, via a first microphone and a second microphone positioned on an open ear device, a first audio signal and a second audio signal, respectively. The first audio signal and second audio signal may be converted to a first digital audio signal and a second digital audio signal. The first digital audio signal and second digital audio signal may be independently processed by an AFC to reduce acoustic feedback. A beamformer may adjust the first digital audio signal and second digital audio signal based on a target direction to create a beamformer digital audio signal. The beamformer digital audio signal may be processed via feedforward processing to create a target audio. The target audio may be phase shifted and transmitted to a loudspeaker positioned on the open ear device.

An embodiment detects, using a sensor installed within a building, a first position of a first noise source. The embodiment generates a first noise control configuration comprising a first directional acoustic loudspeaker and a first frequency and first amplitude of a first acoustic tone, the first frequency and first amplitude of the first acoustic tone, when generated by the first directional acoustic loudspeaker, selected to attenuate the first noise source at a first distance from the first position. The embodiment generates, according to the first noise control configuration, the first acoustic tone.

A sound system and a method for noise cancellation in a room is provided, the method comprising arranging a set of microphones at a distance from an opening in a wall of the room for provision of one or more microphone input signals including a first microphone input signal; arranging a set of speakers in a vicinity of the opening; determining, based on at least the first microphone input signal, one or more output signals for the set of speakers for matching of sound entering the room through the opening; generating the one or more output signals; and outputting sound signals based on the one or more output signals with the set of speakers.

Devices, methods, systems, and media for selectively cancelling sounds at a listener's location are described. Sound sources are identified in the listener's environment using microphones and/or remote devices associated with specific sound sources. A user is presented with information identifying the sound sources, including spatial information, and prompting the user to select one or more of the sound sources. After the user designates a sound source as noise, microphones are used to monitor for sound originating from the designated sound source, and the audio information captured by the microphones is processed to generate an anti-noise signal presented to the listener to cancel sounds originating from the selected sound source. A user may designate multiple sound sources as noise and leave other sound sources unfiltered. The techniques may be used in single-listener and multi-listener applications, and in listening and speaking applications.

The present invention is in the field of an active sound-cancellation system, an open fluid-duct comprising such an active sound-cancellation system, such as an air duct, and an active sound-cancellation computer program comprising instructions for operating such an active sound-cancellation system. The active sound-cancellation system reduces noise significantly.

A sound system and a method for noise cancellation in a room is provided, the method comprising arranging a set of microphones at a distance from an opening in a wall of the room for provision of one or more microphone input signals including a first microphone input signal; arranging a set of speakers in a vicinity of the opening; determining, based on at least the first microphone input signal, one or more output signals for the set of speakers for matching of sound entering the room through the opening; generating the one or more output signals; and outputting sound signals based on the one or more output signals with the set of speakers.

Techniques are described for wirelessly receiving, at first and second speaker assemblies, signals representing left and right audio channels from each of first and second sources, and using the signals, simultaneously playing, on both speaker assemblies, music, computer game audio, computer chat audio, and speech picked up by speaker microphones. Microphone signal beamforming, cross-talk removal, echo cancelation, and noise reduction may be performed using local and remote channels to isolate microphone signals.