Abstract: Described herein is binaural data sharing technology for ear-worn devices to improve audio processing performance. Different embodiments may include sharing of various data types, such as processed microphone signals, beamformed signals, neural network products (e.g., masks), and environmental metrics. For beamforming, devices may combine signals from both ears for improved directional selectivity or process separate beamformed signals independently. Devices may be configured to generate identical masks or average mask magnitude portions while preserving device-specific phase components. Neural networks may be trained to handle mixed-latency data, processing current local data with “stale” data from the other device. Environmental metrics like signal-to-noise ratios may be shared for coordinated responses to acoustic conditions. The technology may also apply to integrated devices like eyeglasses.

Abstract: Embodiments disclosed herein relate to systems and methods for performing fitting of an auditory prosthesis using tactile responses. A tactile feedback device determines a physical manipulation in response to a test stimulus. A type of adjustment can be determined based upon the type of the physical manipulation and the type of the test signal. A scaling of the adjustment can be determined based on the degree of the physical manipulation.

Abstract: Techniques for automatic parameter tuning of active road noise cancellation systems are described herein. The system can automatically search for an optimal set of algorithm parameters based on recorded data. An active road noise cancellation algorithm and simulation can be embedded in an auto-differentiation framework, which allows gradients of the algorithm parameters to guide the automatic search and calculations of the algorithm parameters.

Abstract: A virtual engine sound generating system and method are provided in which each of speakers outputting a virtual engine sound provides an intended optimal virtual engine sound to a driver by adjusting a time for a virtual engine sound to reach the driver and an amplitude of an engine sound that reaches the driver when the head position of the driver changes from a reference position. The system includes speakers provided in a vehicle to output the virtual engine sound, an engine sound generating unit generating the sound, and a controller calculating a head position of a driver based on state information of the driver's seat, adjusting a delay time at which the virtual engine sound is output and/or an amplification factor for each of the speakers based on the calculated head position, and outputting an adjusted delay time and/or amplification factor to the engine sound generating unit.

Abstract: A cancellation device according to one aspect of the invention is a cancellation device that cancels noise coming to a region in a vicinity of a loudspeaker, the cancellation device including at least two loudspeakers 1 and one reference microphone 3, in which the cancellation device is configured such that an acoustic signal emitted in a sound emission direction of a same loudspeaker and an acoustic signal emitted in an opposite direction collide with each other, the at least two loudspeakers 1 and the reference microphone 3 are arranged on a same plane, the at least two loudspeakers 1 emit cancellation sound that cancels the noise in synchrony, and the plane is a plane including a boundary between a sound emission direction of the two loudspeakers 1 and a direction opposite to a sound emission direction.

Abstract: A wearable device may include a microphone configured to generate a microphone signal, a speaker configured to be driven by an audio signal, and one or more processors configured to process the microphone signal to determine an amount of ultrasound in the microphone signal; determine, based on the amount of ultrasound, a parameter to control a digital filter that attenuates energy in the microphone signal, in which the digital filter attenuates more when the amount of ultrasound is increasing and less when the amount of ultrasound is decreasing; and apply the digital filter to the microphone signal to generate a reference audio signal that is then processed in a path that produces the audio signal to drive the speaker.

Abstract: A method for managing an audio stream read by an audio playback equipment unit, said unit being arranged in a given place, includes the steps of: detecting on at least one image, the user(s) present on the image and deducing from this, for each of said users, at least one piece of information characteristic of the position of the user in question in said image; determining at least from the different characteristic information, an optimal bearing angle (?opt); and providing mixing means distributing the audio stream between the different audio playback equipment of the unit, a magnitude characteristic of the optimal bearing angle, such that the mixing means distribute the audio stream at least according to said value.

Abstract: An active noise canceller device includes: a reference signal generation device, generating a reference signal corresponding to a noise; a cancellation sound output device, outputting cancellation sound for canceling the noise; an error detection device, detecting an error between the noise and the cancellation sound and generating an error signal corresponding to the error; and a control device, controlling the cancellation sound output device that further including: a reference signal correction part, correcting the reference signal; a noise estimation part, estimating a sound pressure; a sound pressure estimation part, estimating the sound pressure within an object range of the cancellation sound that cancels the noise; and a control filter, controlling the cancellation sound. The active noise canceller device updates the control filter based on the reference signal corrected by the reference signal correction part and a sound pressure estimated value of the sound pressure estimation part.

Abstract: Acoustic echo cancellation systems and methods are provided that can generate a continuous mask value that can be used as a gain of a non-linear processor. Communication between a loudspeaker and the non-linear processor can be utilized to adjust the threshold of the non-linear processor when the loudspeaker is active to assist in suppressing far end single talk leakage. The systems and methods can improve the removal of residual echo and therefore enhance the overall performance of the acoustic echo cancellation system.

Abstract: An apparatus comprising: means for receiving one or more left ear microphone signals; means for receiving one or more right ear microphone signals; means for boosting a left ear sound signal in dependence upon the received one or more right ear microphone signals; means for boosting a right ear sound signal in dependence upon the received one or more left ear microphone signals.

Abstract: Systems and methods are provided for automatically adjusting a reference gain of an audio mixer having a reference channel for receiving a far end audio signal from a remote location as a reference signal and a plurality of audio input channels for receiving audio signals captured by a plurality of microphone element. An exemplary method includes determining an echo level in an input audio signal received at a given audio input channel, and automatically determining a gain amount for the reference channel based on the echo level. An exemplary system includes a reference gain adjuster configured to automatically determine a gain amount for the reference channel based on an echo level detected in an input audio signal received at a given audio input channel.

Abstract: An active noise cancellation (ANC) device is provided. The ANC device comprises a first microphone configured to generate a first microphone signal in response to a first acoustic noise in a first zone of the ANC device, a loudspeaker configured to be driven with a loudspeaker signal, and a second microphone configured to generate a second microphone signal, wherein the second microphone signal comprises a residual noise component based on a second acoustic noise in a second zone of the ANC device. Moreover, the ANC device comprises processing circuitry configured to generate, using a first filter, a compensation signal based on the first microphone signal and further configured to generate, using a second filter, the loudspeaker signal based on the compensation signal and the second microphone signal.

Abstract: An active noise canceller device includes: a cancellation sound output device, outputting a cancellation sound for a noise; noise microphones, generating noise signals; a control device, controlling the cancellation sound output device based on the noise signals. The control device executes: obtaining noise signals, selecting reference signals corresponding to the noise and an error signal corresponding to an error of the noise and the cancellation sound from the noise signals, generating a correction reference signal, and generating a control signal. The control device includes: a control filter, generating the control signal of the control device; a primary path filter, generating a noise estimation signal from the reference signals; a secondary path filter, generating a cancellation sound estimation signal from the correction reference signal; and a stability judgment part, judging a stability of the cancellation sound from the control filter, the primary path filter, and the secondary path filter.

Abstract: A system for vehicle exterior noise reduction, comprising: means for measuring amplitude and phase of exterior noise, which 5 propagates at least in part in a first direction from at least one exterior noise source of a vehicle, having an acoustic transmission path, wherein the exterior noise propagates at least in part under an underbody of the vehicle; means for calculating an out of phase signal based at least in part on the measured amplitude and phase of the exterior noise; and 10 means for generating an out of phase sound, based at least in part on the calculated out of phase signal, configured to cancel exterior noise; wherein the generated out of wave sound propagates at least in part in the first direction of the acoustic transmission path.

Abstract: The present discloser relates to a method for active noise cancellation. An example method includes: capturing an ambient sound to determine an ambient audio signal; and determining a working status, determining at least one corresponding wanted signal based on the working status, and then removing the at least one wanted signal from the ambient audio signal, to obtain a reference signal, where the wanted signal includes content of interest. The example method further includes determining a to-be-played signal based on the reference signal.

Abstract: A device to perform location-based audio signal compensation includes a memory configured to store instructions and one or more processors. The one or more processors are configured to execute the instructions to receive an audio input signal corresponding to sound received from a second device, determine position data indicative of a position of the device, and generate, based on the audio input signal, a compensation filter to be applied to an audio playback signal prior to playout from the second device, to at least partially compensate for distortion associated with sound propagation from the second device to the position of the device.

Abstract: A method that includes determining a level of sound within an acoustic environment captured by a microphone; receiving, from a headset worn by a user, data indicating an audio processing mode in which the headset is operating; determining a level of attenuation of the sound based on the audio processing mode and the level of sound; estimating sound exposure based on at least the level of attenuation and the level of sound; and transmitting the sound exposure to an application program.

Abstract: An active noise cancellation (ANC) system has a mounting plate, a first face of which is configured to be disposed against an inner surface of a helmet to form, with the helmet, a chamber. When the mounting plate is mounted on the helmet, a loudspeaker provided on the first face of the mounting plate is within the chamber. The plate has an aperture for allowing transmission of sound from the loudspeaker to the spatial region. At least one reference microphone is mounted on a second face of the plate. The plate acts as a mounting plate for components of the ANC system, simplifying the process of installing an ANC system. Also, the plate serves to define a chamber that accommodates the loudspeaker of the ANC system and provides good acoustic coupling of the sound signal from the loudspeaker of the ANC system into the quiet zone of the ANC system.

Abstract: The disclosure provides an audio processing device comprising a first filter and a second filter. The first filter is configured to generate a first filtered signal based on an error signal, the error signal representative of audible sound at a target space. The second filter is configured to generate a second filtered signal based on the error signal. An anti-noise signal is generated based on the first filtered signal and the second filtered signal, and the anti-noise signal is included in the error signal. The first filter is connected to the second filter in parallel.

Abstract: An apparatus for generating a plurality of loudspeaker signals from two or more audio source signals is provided. Each of the two or more audio source signals shall be reproduced in one or more of two or more sound zones, and at least one of the two or more audio source signals shall not be reproduced in at least one of the two more sound zones. An audio preprocessor is configured to modify each initial audio signal of the two or more initial audio signals depending on a signal power or a loudness of another initial audio signal of the two or more initial audio signals. A filter is configured to generate the plurality of loudspeaker signals depending on in which of the two or more sound zones the two or more audio source signals shall be reproduced and depending on in which of the two or more sound zones the two or more audio source signals shall not be reproduced.