Abstract: Techniques for regenerating reverberation include generating a reverberation signal based on a source signal and a response of a listening space, generating a compressed reverberation signal by increasing output levels of a first portion of the reverberation signal having output levels below a threshold level more than output levels of a second portion of the reverberation signal having output levels above the threshold level, and combining the compressed reverberation signal with the source signal to form an output signal for the listening space.

Abstract: A method for audio processing, the method comprising: determining at least one input audio object that includes an input audio object signal and an input audio object location, wherein the input audio object location includes a distance and a direction relative to a listener location; depending on the distance, applying a delay, a gain, and/or a spectral modification to the input audio object signal to produce a first dry signal; depending on the direction, panning the first dry signal to the locations of a plurality of speakers around the listener location to produce a second dry signal; depending on one or more predetermined room characteristics, generating an artificial reverberation signal from the input audio object signal; mixing the second dry signal and the artificial reverberation signal to produce a multichannel audio signal; and outputting each channel of the multichannel audio signal by one of the plurality of speakers.

Abstract: The present disclosure provides to a housing configured to receive an earbud. The housing comprises two power providing charging electrodes configured to charge the earbud when the earbud is positioned in the housing. The housing further comprises a first magnetic element arranged in the housing and having a geometry such that the first magnetic element encircles at least one electrode of the at least two electrodes, where the first magnetic element is configured to generate an attractive force for the earbud in combination with a second magnetic element provided in the earbud.

Abstract: A system and method for multi-rate synchronization of a digital sensor that provides a digital sensor output signal and a processor arrangement that processes the digital sensor output signal according to a processing algorithm and that provides a processor output signal, including operating the digital sensor to provide the digital sensor output signal with a first sample rate, and operating the processor arrangement to provide a processor output signal with a second sample rate. The second sample rate is an integer multiple of the first sample rate.

Abstract: A microphone assembly includes a shaft element that is configured to be received in an opening defined by a base substrate layer of a headliner. The shaft element defines an air path. The microphone assembly includes a microphone element mounted on a circuit board within a housing. The microphone element is aligned with the air path such that the air path directs sound from the cabin to the microphone element. A vehicle cabin side of the headliner is covered by an acoustically transparent layer such that the microphone assembly is not visible within the vehicle cabin.

Abstract: A microphone assembly for a vehicle headliner includes a housing arranged to be received within a substrate layer of the headliner and having an upper portion and a lower portion. A circuit board is mounted in the upper portion and has a microphone element coupled thereto. An insert bracket includes a base and a shaft member extending upwardly therefrom, the base having a plurality of apertures aligned with the shaft member, wherein the shaft member engages the lower portion to connect the insert bracket to the housing. A sealing gasket having at least one channel defining an air path extending therethrough is arranged to be received within the shaft member and extend between the base and the upper portion, providing acoustic sealing between the insert bracket and the housing such that the air path directs sound from a cabin of the vehicle through the apertures to the microphone element.

Abstract: A system and method for generating a virtual soundstage in a listening environment having a compact speaker array centrally positioned in a listening environment. A listener is sitting offset from the speaker array and the virtual soundstage is generated in front of a listener. A signal processing unit is configured to receive an incoming audio signal, to process left and right channel signals of the incoming audio signal to generate a null, and to steer the null toward one ear of a listener thereby generating a virtual sound source that is offset from the center of the listening environment. Virtual sound sources are generated in front of, to the left of, and to the right of the listener.

Abstract: A noise suppression method includes transforming a time-domain input signal into an input spectrum that is the spectrum of the input signal, the input signal comprising speech components and noise components, and the input spectrum comprising a speech spectrum that is the spectrum of the speech components and a noise spectrum that is the spectrum of the noise components, smoothing magnitudes of the input spectrum to provide a smoothed-magnitude input spectrum, and estimating basic suppression filter coefficients from the input spectrum and the smoothed input spectrum. The method further includes determining noise suppression filter coefficients from the estimated basic suppression filter coefficients and a spectral correlation factor, the spectral correlation factor indicating whether speech is present in the input signal or not, filtering the input spectrum based on the noise suppression filter coefficients to generate an output spectrum; and transforming the output spectrum into a time-domain output signal.

Abstract: A loudspeaker including a first diaphragm, a second diaphragm spaced from the first diaphragm, a first voice coil coupled to the first diaphragm, a second voice coil coupled to the second diaphragm, and a magnet assembly. The magnet assembly includes a magnet, a magnetic piece and a spacer of non-magnetic material connecting the magnet and the magnetic piece such that a gap is provided between the magnet and the magnetic piece. The first voice coil is arranged at a first end of the gap and the second voice coil is arranged at a second end of the gap opposite the first end of the gap.

Abstract: The aspects disclosed herein generally provide a method and a system of real-time data monitoring for a vehicle. The method comprises packaging monitoring data into one or more physical Automotive Audio Bus (A2B) channels according to a data package protocol; transferring the packaged monitoring data via a A2B bus; and unpackaging the transferred data and displaying the unpackaged monitoring data.

Abstract: A method comprises outputting at least one test signal to a listening environment via a loudspeaker, receiving each of the at least one test signal via a microphone arranged in the listening environment, determining at least one of a position and an orientation of the microphone in the listening environment with respect to the loudspeaker at the time of receipt of each of the at least one test signal, evaluating the test signals received by the microphone, and determining at least one aspect related to at least one transfer function based on the evaluation of the test signal and on at least one of the position and the orientation of the microphone.

Abstract: A map fusing method includes receiving a source graph and a target graph. The source graph is representative of a source map and the target graph is representative of a target map and includes nodes and edges that connect the nodes. The method further includes processing each of the source graph and the target graph in a graph convolutional layer to provide graph convolutional layer outputs related to the source graph and to the target graph, processing each of the graph convolutional layer outputs for the source graph and the target graph in a linear rectifying layer to output node feature maps related to the source graph and the target graph. The method further includes selecting pairs of node representations from the node feature maps related to the source graph and the target graph and concatenating the selected pairs to output selected and concatenated pairs of node representations.

Abstract: An active road noise control system method for a vehicle includes picking up noise at a multiplicity of positions in or on the vehicle and generating a multiplicity of noise sense signals representative of road noise originating from a road noise source in or at the vehicle, and processing, according to a beamforming scheme, the multiplicity of noise sense signals to generate a reference signal and to provide a sensitivity characteristic for picking up the noise that comprises one main lobe directed to the road noise source. The system and method further includes iteratively and adaptively processing the reference signal to provide a noise reducing signal, and generating at one or more positions in an interior of the vehicle, from the noise reducing signal, noise reducing sound at a listening position in the interior of the vehicle.

Abstract: A method for designing a line array loudspeaker arrangement comprises providing a loudspeaker arrangement based on design start parameters and including at least a vertical front array and measuring the frequency responses of the loudspeaker arrangement with bypassed or omitted electronic filters at predefined horizontal angle increments. The method further comprises computing combined beam forming and crossover filter frequency responses for the vertical front array based on the measured frequency responses of the loudspeaker arrangement and first target frequency responses at various frequency points and various positions; and computing combined equalizing and crossover filter frequency responses for the vertical front array based on second target frequency responses, the combined equalizing and crossover filter frequency responses being configured to obtain acoustic linear phase responses of the loudspeaker arrangement.

Abstract: A vehicle microphone system may include at least two microphones forming a microphone array, at least one loudspeaker configured to emit audio signals. a processor coupled to a memory and programmed to receive incoming audio signals from the microphone array, determine at least one parameter for each channel of the microphone array, determine at least one filter to apply to at least one channel based on a difference between the parameters of each channel, and store the at least one filter in the memory.

Abstract: A display unit comprising a touch surface touchable by a user, a drive unit for moving the touch surface when the touch surface is touched, in particular for haptic feedback to the user, and at least one damping element, which damps mechanical oscillations of the movement of the touch surface. Each damping element comprises an elastic element and a pressure setting element (for example, a valve). This pressure setting element is designed to fill the elastic element in a variable or settable manner with gas for the damping. The damping properties of the display unit can thus be set arbitrarily via the gas pressure inside the elastic element.

Abstract: Systems and methods are provided herein for presenting information in a vehicle. In one example, a method includes determining a route from a source location to a destination location, obtaining one or more features of the route, augmenting a map of the route with the one or more features to generate an augmented map, and displaying the augmented map on a windshield of the vehicle.

Abstract: Disclosed herein are methods for decoding path data. The methods may comprise providing a navigation database for storing topological information of a road network. The navigation database comprises a plurality of road links, and a plurality of link nodes, each link node defining a topological connection between two or more of the road links. The methods may further comprise receiving path data indicative of a path within the road network, wherein the path data comprises a start identifier, a link count, and at least one exit number. The methods may further comprise selecting, from the navigation database, one road link of the plurality of the road links as a start road link of the path based the start identifier. Moreover, the methods may comprise iteratively expanding the path with selected road links until the link count is equal to the number of road links of the path.

Abstract: A loudspeaker arrangement comprises a frame including at least two mounting fixtures and a connecting element. The connecting element connects the at least two mounting fixtures to each other. The loudspeaker arrangement further comprises at least two loudspeakers. Each of the at least two loudspeakers is arranged in a different one of the at least two mounting fixtures. The loudspeaker arrangement further comprises an amplifier configured to amplify audio signals to be reproduced by the at least two loudspeakers. The amplifier is mechanically coupled to the connecting element between the at least two mounting fixtures.

Abstract: A display device with adjustable viewing angle is provided, which includes a display unit with a plurality of pixels arranged in a pixel array and emitting light for displaying image information to a user, a plurality of electro-optical lenses with adjustable optical power arranged in a lens array at the display unit, wherein each electro-optical lens is adjustable between a public mode, in which the electro-optical lens is configured to project light from the display unit towards the user within a first viewing angle, and a privacy mode, in which the electro-optical lens is configured to project the light towards the user within a second viewing angle, smaller than the first viewing angle.