Bose Corporation

Samuel Rhee

Cristian Marius Hera

Takashi Kinoshita

Peter Raymond

Audio systems and methods are provided that receive a sound management input signal as a reference signal to remove related content from a microphone signal in, e.g., an automotive hands-free system. The sound management signal may provide an acoustic augmentation to reduce, enhance, or create an acoustic effect, e.g., of an engine, motor, or other operating components. A signal processor receives the sound management signal and the microphone signal, and reduces or removes the sound management signal components from the microphone signal.

Cancellation of vehicle active sound management signals for handsfree systems

An active sound management system comprises a transducer that senses an actual sound or vibration from a sound generating source and generates a transducer signal in response to sensing the actual sound or vibration; a harmonic extractor device that extracts a plurality of harmonics from the transducer signal; and a harmonic modifier device that adjusts a feature of the extracted harmonic to be within a predetermined threshold with respect to a target harmonic corresponding to a desired sound.

Vehicle engine sound management

A method for modifying sound in a motor vehicle that has an audio system. The audio system has at least one electro-acoustic transducer that creates sound from audio signals. An initial audio signal that represents a particular vehicle sound is provided, where the initial audio signal has a plurality of signal properties. A modified audio signal is then provided to the audio system, based on at least one current motor vehicle operating condition. The modified audio signal includes at least one modified signal property that differs from that of the initial audio signal. The at least one signal property is modified by a modification process that relates to a vehicle operating condition.

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Northborough, MA, United States of America

Samuel Rhee