Abstract: Systems, methods, and processing are provided for adjusting an audio playback signal to adjust a temporal alignment of content within an audio signal. The audio signal is received and filtered to provide an adjusted audio signal. The adjusted audio signal includes a delay in a first range of frequencies relative to a second range of frequencies, and the adjusted audio signal is provided to a sound reproduction system, such as an amplifier and at least one acoustic transducer.

Abstract: A system for providing augmented audio to users in a vehicle, comprising: a plurality of speakers disposed in a perimeter of a cabin of the vehicle; and a controller configured to receive a first audio signal and a second audio signal, to drive the plurality of speakers in accordance with a first array configuration such that a bass content of the first audio signal is produced in a first listening zone within the vehicle cabin, and to drive the plurality of speakers in accordance with a second array configuration such that a bass content of the second audio signal is produced in a first listening zone within the vehicle cabin, wherein in the first listening zone a magnitude of the first bass content is greater than a magnitude of the second bass content and in the second listening zone the magnitude of the second bass content is greater than the magnitude of the first bass content.

Abstract: A system for providing spatialized audio in a vehicle, including a vehicle orientation sensor outputting a vehicle orientation signal and being disposed on the vehicle and a controller configured to receive a user orientation signal output from a user orientation sensor being on a wearable that, during use, moves with a first user's head, wherein the controller is further configured to determine an orientation of the user's head relative to the vehicle based, at least, on a difference between the vehicle orientation signal and the user orientation signal, the controller being further configured to output to a first binaural device, according to the orientation of the user's head relative to the vehicle, a first spatial audio signal, such that the first binaural device produces a first spatial acoustic signal perceived by the user as originating from a first virtual source location within a cabin of the vehicle.

Abstract: A system for providing augmented audio to users in a vehicle, comprising: a plurality of speakers disposed in a perimeter of a cabin of the vehicle; and a controller configured to receive a first audio signal and a second audio signal, to drive the plurality of speakers in accordance with a first array configuration such that a bass content of the first audio signal is produced in a first listening zone within the vehicle cabin, and to drive the plurality of speakers in accordance with a second array configuration such that a bass content of the second audio signal is produced in a first listening zone within the vehicle cabin, wherein in the first listening zone a magnitude of the first bass content is greater than a magnitude of the second bass content and in the second listening zone the magnitude of the second bass content is greater than the magnitude of the first bass content.

Abstract: A system for providing augmented spatialized audio in a vehicle, including a plurality of speakers disposed in a perimeter of a cabin of the vehicle; and a controller configured to receive a position signal indicative of the position of a first user's head in the vehicle and to output to a first binaural device, according to the first position signal, a first spatial audio signal, such that the first binaural device produces a first spatial acoustic signal perceived by the first user as originating from a first virtual source location within the vehicle cabin, wherein the first spatial audio signal comprises at least an upper range of a first content signal, wherein the controller is further configured to drive the plurality of speakers with a driving signal such that a first bass content of the first content signal is produced in the vehicle cabin.

Abstract: A system for providing augmented spatialized audio in a vehicle, including a plurality of speakers disposed in a perimeter of a cabin of the vehicle; and a controller configured to receive a position signal indicative of the position of a first user's head in the vehicle and to output to a first binaural device, according to the first position signal, a first spatial audio signal, such that the first binaural device produces a first spatial acoustic signal perceived by the first user as originating from a first virtual source location within the vehicle cabin, wherein the first spatial audio signal comprises at least an upper range of a first content signal, wherein the controller is further configured to drive the plurality of speakers with a driving signal such that a first bass content of the first content signal is produced in the vehicle cabin.

Abstract: A system for providing augmented audio to users in a vehicle, comprising: a plurality of speakers disposed in a perimeter of a cabin of the vehicle; and a controller configured to receive a first audio signal and a second audio signal, to drive the plurality of speakers in accordance with a first array configuration such that a bass content of the first audio signal is produced in a first listening zone within the vehicle cabin, and to drive the plurality of speakers in accordance with a second array configuration such that a bass content of the second audio signal is produced in a first listening zone within the vehicle cabin, wherein in the first listening zone a magnitude of the first bass content is greater than a magnitude of the second bass content and in the second listening zone the magnitude of the second bass content is greater than the magnitude of the first bass content.

Abstract: A system for providing augmented spatialized audio in a vehicle, including a plurality of speakers disposed in a perimeter of a cabin of the vehicle; and a controller configured to receive a position signal indicative of the position of a first user's head in the vehicle and to output to a first binaural device, according to the first position signal, a first spatial audio signal, such that the first binaural device produces a first spatial acoustic signal perceived by the first user as originating from a first virtual source location within the vehicle cabin, wherein the first spatial audio signal comprises at least an upper range of a first content signal, wherein the controller is further configured to drive the plurality of speakers with a driving signal such that a first bass content of the first content signal is produced in the vehicle cabin.

Abstract: A system for providing augmented audio to users in a vehicle, comprising: a plurality of speakers disposed in a perimeter of a cabin of the vehicle; and a controller configured to receive a first audio signal and a second audio signal, to drive the plurality of speakers in accordance with a first array configuration such that a bass content of the first audio signal is produced in a first listening zone within the vehicle cabin, and to drive the plurality of speakers in accordance with a second array configuration such that a bass content of the second audio signal is produced in a first listening zone within the vehicle cabin, wherein in the first listening zone a magnitude of the first bass content is greater than a magnitude of the second bass content and in the second listening zone the magnitude of the second bass content is greater than the magnitude of the first bass content.

Abstract: An entertainment audio processing system includes a music limiter configured to receive an audio signal, volume control information for music, and volume control information for announcement. The music limiter is further configured to calculate a gain parameter based on a music-to-announcement ratio. In another aspect, an entertainment audio processing system includes a mixer configured to substantially match a left audio signal channel and a right audio signal channel. The entertainment audio processing system further includes an equalizer configured to introduce magnitude and phase changes between the left audio signal channel and the right audio signal channel.

Abstract: A system is provided for limiting distortion of an audio speaker. The system includes a first lowpass filter circuitry that is configured to receive a system input signal and generate a first lowpass filtered output signal. The system also includes a first limiter circuitry that is configured to limit the first lowpass filtered output signal. Limiting the first low pass filtered output signal includes reducing an amplitude of the first lowpass filtered output signal below a first predetermined threshold value, thereby to generate a first limited output signal. A second lowpass filter circuitry is configured to receive the first limited output signal and to generate a second lowpass filtered output signal.

Abstract: The technology described in this document can be embodied in a method that includes receiving information indicative of a volume setting corresponding to each listening zone of a plurality of listening zones. The method also includes generating a zone-specific adjustment signal for each of the plurality of listening zones, wherein the zone-specific adjustment signal for a given listening zone accounts for a cross-zone effect associated with a volume setting corresponding to another listening zone, and is configured to adjust an output of corresponding zone-specific circuitry. The method further includes generating an additional adjustment signal configured to adjust an output of a cross-zone equalization filter. The output of the cross-zone equalization filter is configured to generate a target acoustic distribution across multiple listening zones.

Abstract: The technology described in this document can be embodied in a system that includes a seat headrest enclosing at least one first acoustic transducer that generates audio output in a first frequency range. The system also includes an adjustable headrest wing disposed in front of the seat headrest, the headrest wing being pivotally coupled to the seat headrest and adjustable to one of multiple positions. The headrest wing includes at least one second acoustic transducer that generates audio output in a second frequency range that includes frequencies higher than the upper end of the first frequency range. The system further includes a controller configured to adjust, for a given position of the headrest wing, one or more parameters of at least one of: (i) the first acoustic transducer and (ii) the second acoustic transducer in accordance with a target acoustic distribution.

Abstract: The technology described in this document can be embodied in a method that includes receiving information indicative of a volume setting corresponding to each listening zone of a plurality of listening zones. The method also includes generating a zone-specific adjustment signal for each of the plurality of listening zones, wherein the zone-specific adjustment signal for a given listening zone accounts for a cross-zone effect associated with a volume setting corresponding to another listening zone, and is configured to adjust an output of corresponding zone-specific circuitry. The method further includes generating an additional adjustment signal configured to adjust an output of a cross-zone equalization filter. The output of the cross-zone equalization filter is configured to generate a target acoustic distribution across multiple listening zones.

Abstract: Systems and methods of simulating acoustic output at a location corresponding to source position data are disclosed. A particular method includes receiving an audio signal and source position data associated with the audio signal. A set of speaker signals are applied to a plurality of speakers, where the set of speaker driver signals causes the plurality of speakers to generate acoustic output that simulates output of the audio signal by an audio source at a location corresponding to the source position data.

Abstract: The technology described in this document can be embodied in a system that includes a seat headrest enclosing at least one first acoustic transducer that generates audio output in a first frequency range. The system also includes an adjustable headrest wing disposed in front of the seat headrest, the headrest wing being pivotally coupled to the seat headrest and adjustable to one of multiple positions. The headrest wing includes at least one second acoustic transducer that generates audio output in a second frequency range that includes frequencies higher than the upper end of the first frequency range. The system further includes a controller configured to adjust, for a given position of the headrest wing, one or more parameters of at least one of: (i) the first acoustic transducer and (ii) the second acoustic transducer in accordance with a target acoustic distribution.

Abstract: An automobile audio system includes a signal processor configured to receive and process audio signals from a source and provide processed audio signals to an amplifier, a first headrest including a headrest speaker and coupled to a driver's seat, a first fixed speaker positioned near a left corner of the vehicle's cabin forward of the headrest, a second fixed speaker positioned near a right corner of the vehicle's cabin forward of the headrest, and a headrest accessory port located in a passenger's seat. The port is configured to connect the audio system to a second headrest speaker. The processor uses a first set of parameters for processing the received audio signals when the first headrest speaker is connected and the second headrest speaker is not connected, and a second set of parameters for processing the received audio signals when both the first and second headrest speaker are connected.

Abstract: The technology described in this document can be embodied in a system that includes a seat headrest enclosing at least one first acoustic transducer that generates audio output in a first frequency range. The system also includes an adjustable headrest wing disposed in front of the seat headrest, the headrest wing being pivotally coupled to the seat headrest and adjustable to one of multiple positions. The headrest wing includes at least one second acoustic transducer that generates audio output in a second frequency range that includes frequencies higher than the upper end of the first frequency range. The system further includes a controller configured to adjust, for a given position of the headrest wing, one or more parameters of at least one of: (i) the first acoustic transducer and (ii) the second acoustic transducer in accordance with a target acoustic distribution.

Abstract: An entertainment audio processing system includes a music limiter configured to receive an audio signal, volume control information for music, and volume control information for announcement. The music limiter is further configured to calculate a gain parameter based on a music-to-announcement ratio. In another aspect, an entertainment audio processing system includes a mixer configured to substantially match a left audio signal channel and a right audio signal channel. The entertainment audio processing system further includes an equalizer configured to introduce magnitude and phase changes between the left audio signal channel and the right audio signal channel.

Abstract: A signal input module receives at least one of an entertainment audio signal and a telephony audio signal from vehicle sound circuitry. A level control module executes gain level control logic to balance the entertainment audio signal and a telephony audio signal according to a ratio. A gain control signal is applied to at least one of the entertainment audio signal and the telephony audio signal. A routing module mixes the entertainment audio signal and the telephony audio signal and routes the mixed signal to an output channel associated with a speaker.