Surface augmented ray-based acoustic modeling

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United States of America Patent

PATENT NO 11830471
SERIAL NO

17007681

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Abstract

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Disclosed are techniques for performing ray-based acoustic modeling that models scattering of acoustic waves by a surface of a device. The acoustic modeling uses two parameters, a room response representing acoustics and geometry of a room and a device response representing acoustics and geometry of the device. The room response is determined using ray-based acoustic modeling, such as ray tracing. The device response can be measured in an actual environment or simulated and represents an acoustic response of the device to individual acoustic plane waves. The device applies a superposition of the room response and the plane wave scattering from the device response to determine acoustic pressure values and generate microphone audio data. The device can estimate room impulse response (RIR) data using data from the microphones, and can use the RIR data to perform audio processing such as sound equalization, acoustic echo cancellation, audio beamforming, and/or the like.

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Patent Owner(s)

  • AMAZON TECHNOLOGIES INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kim, Wontak Watertown, US 28 220
Luo, Yuancheng Cambridge, US 6 32
Mansour, Mohamed Cupertino, US 36 158

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