Real-time audio processing of ambient sound

US10325585B2 · kind B2 · utility

Assignee

• Dolby Laboratories Licensing Corporation · US

Inventors

• Jeffrey Baker · Newbury Park, US
• Anthony Parks · Queens, US
• Sal Gregory Garcia · Camarillo, US
• Thomas Ezekiel Burgess · Burbank, US
• Matthew Fumio Yamamoto · Moorpark, US
• Nils Jacob Palmborg · Brooklyn, US
• Noah Kraft · New York, US
• Richard Fritz Lanman, III · San Francisco, US
• Daniel C. Wiggins · Northwest 1st Avenue, US

Key dates

• Filing date: Dec 19, 2016
• Grant date: Jun 18, 2019
• Expiry date: Dec 19, 2036

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04R2460/01
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

Ambient sound is converted into digital signals. A processor performs active noise cancellation and/or a transformation operation that is distinct from the active noise cancellation on the digital signals. The active noise cancellation and the transformation operation transform the digital signals into modified digital signals. The modified digital signals are converted into modified analog signals. The modified analog signals are outputted as audio waves. An interior microphone is configured to output an output signal to the processor in response to receiving the modified analog signals. In response to receiving the output signal from the interior microphone, the processor is configured to determine whether the modified digital signals produce desired audio waves.