Abstract: A system and method for pedestrian alert that derives a pedestrian path representing a projected path for a pedestrian, derives a vehicle path representing a projected path for a motor vehicle, determines an intersection of the pedestrian path and the vehicle path, determines alert characteristics responsive to the determined intersection, and generates an alert that is emitted from the vehicle responsive to the determined alert characteristics. The system and method for pedestrian alert may be built, installed or implemented in a motor vehicles that is operated in environments where the motor vehicle may be in close proximity to pedestrians. The system and method for pedestrian alert mitigates the likelihood of a collision between the motor vehicle and a pedestrian by emitting an alert that may draw the attention of the pedestrian to the presence of the motor vehicle.

Abstract: A method for generating an acoustic signal for localization of a point of interest may access a geographic location and an audio waveform associated with a point of interest. A geographic location of a vehicle may be determined. An orientation of the geographic location associated with the point of interest may be derived relative to the vehicle based on the geographic location associated with the point of interest and the determined geographic location of the vehicle. An acoustic signal including the audio waveform may be produced in two or more audio transducers where a human listener inside the vehicle perceives the produced acoustic signal to be spatially indicative of the derived orientation of the geographic location associated with the point of interest relative to the vehicle.

Abstract: A system and method for synthesizing an engine sound may receive one or more vehicle operational data signals. One or more tone parameters associated with a Shepard tone generator may be modified responsive to the one or more vehicle operation data signals. A Shepard tone may be generated responsive to the modified one or more tone parameters. The Shepard tone may be reproduced using one or more audio transducers.

Abstract: A system and method for speech reinforcement may determine the spatial location of an audio source and the spatial location of a listener. An audio signal generated by the audio source may be captured. The spatial location, relative to the listener, of two or more audio transducers that emit a reinforcing audio signal to reinforce the audio signal may be determined. The captured audio signal, responsive to the spatial location of the audio source, the spatial location of the listener and the spatial location of the two or more audio transducers to generate the reinforcing audio signal, such that, when emitted by the two of more audio transducers, the listener perceives a source of the reinforcing audio signal to be spatially located in substantially the spatial location of the audio source thereby reinforcing the audio signal.

Abstract: A system and method for speech reinforcement may determine the spatial location of an audio source and the spatial location of a listener. An audio signal generated by the audio source may be captured. The spatial location, relative to the listener, of two or more audio transducers that emit a reinforcing audio signal to reinforce the audio signal may be determined. The captured audio signal, responsive to the spatial location of the audio source, the spatial location of the listener and the spatial location of the two or more audio transducers to generate the reinforcing audio signal, such that, when emitted by the two of more audio transducers, the listener perceives a source of the reinforcing audio signal to be spatially located in substantially the spatial location of the audio source thereby reinforcing the audio signal.

Abstract: A system and method for processing an audio signal captured from a microphone may reproduce a known audio signal with an audio transducer into an acoustic space. The known audio signal may include content from one or more audio sources. A microphone audio signal may be captured from the acoustic space where the microphone audio signal comprises the known audio signal and one or more unknown audio signals. Processing control information may be accessed. The known audio signal may be reduced in the microphone audio signal responsive to the processing control information where the processing control information indicates one or more characteristics of a downstream audio processor that processes the microphone audio signal.

Abstract: An improved method and apparatus for recreating spatially natural soundfields in a variety of listening environments is disclosed. The apparatus includes a speaker cabinet that contains multiple drivers each driven so as to effect an overall radiation pattern that mimics the soundfield pattern described by a B-format signal vector. This apparatus allows natural or synthetic soundfields to be played back from a relatively small mechanical speaker structure, providing the benefits of multichannel sound without a cumbersome arrangement of individual speaker cabinets.