公开(公告)号：US10595117B2

公开(公告)日：2020-03-17

申请号：US15469011

申请日：2017-03-24

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Gints Klimanis ,  Anthony Parks ,  Jeff Baker

IPC: H04R1/10 ,  G10L25/90 ,  G10L25/18 ,  G10L21/0232 ,  G10K11/178 ,  H04R29/00

Abstract: Personal audio systems and methods are disclosed. A personal audio system includes a class table storing processing parameters respectively associated with a plurality of annoyance noise classes, a controller, and a processor. The controller identifies an annoyance noise class of an annoyance noise included in an ambient audio stream and retrieves, from the class table, one or more processing parameters associated with the identified annoyance noise class. The processor to processes the ambient audio stream according to the one or more retrieved processing parameters class to provide a personal audio stream. The processor includes a pitch tracker to identify a fundamental frequency of the annoyance noise and a filter bank including a band reject filter tuned to the fundamental frequency.

公开(公告)号：US10325585B2

公开(公告)日：2019-06-18

申请号：US15383134

申请日：2016-12-19

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Jeffrey Baker ,  Anthony Parks ,  Sal Gregory Garcia ,  Thomas Ezekiel Burgess ,  Matthew Fumio Yamamoto ,  Nils Jacob Palmborg ,  Noah Kraft ,  Richard Fritz Lanman, III ,  Daniel C. Wiggins

IPC: H04R1/10 ,  H04R3/00 ,  G10K11/178

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.

公开(公告)号：US20190279610A1

公开(公告)日：2019-09-12

申请号：US16424182

申请日：2019-05-28

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Jeffrey Baker ,  Anthony Parks ,  Sal Gregory Garcia ,  Thomas Ezekiel Burgess ,  Matthew Fumio Yamamoto ,  Nils Jacob Palmborg ,  Noah Kraft ,  Richard Fritz Lanman, III ,  Daniel C. Wiggins

IPC: G10K11/178 ,  H04R3/00 ,  H04R1/10

Abstract: An earpiece for real-time audio processing of ambient sound includes an ear bud that provides passive noise attenuation to the earpiece such that exterior ambient sound is substantially reduced within an ear of a wearer, an exterior microphone that receives ambient sound and converts the received ambient sound into analog electrical signals, and an analog-to-digital converter that converts the analog electrical signals into digital signals representative of the ambient sounds. The earpiece further includes a digital signal processor that performs a transformation operation on the digital signals according to instructions received from a mobile device, the transformation operation transforms the digital signals into modified digital signals, a digital-to-analog converter that converts the modified digital signals into modified analog electrical signals, and a speaker that outputs the modified analog electrical signals as audio waves.

公开(公告)号：US10045115B2

公开(公告)日：2018-08-07

申请号：US15383097

申请日：2016-12-19

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Gints Klimanis ,  Anthony Parks

IPC: G10K11/16 ,  H04R1/10 ,  G10L21/0232 ,  H04R29/00 ,  G10L25/84 ,  G10L25/90 ,  G10L21/0216 ,  G10L21/0208

Abstract: Personal audio systems and methods are disclosed. A personal audio system includes a voice activity detector to determine whether or not an ambient audio stream contains voice activity, a pitch estimator to determine a frequency of a fundamental component of an annoyance noise contained in the ambient audio stream, and a filter bank to attenuate the fundamental component and at least one harmonic component of the annoyance noise to generate a personal audio stream. The filter bank implements a first filter function when the ambient audio stream does not contain voice activity, or a second filter function when the ambient audio stream contains voice activity.

公开(公告)号：US11218796B2

公开(公告)日：2022-01-04

申请号：US16735601

申请日：2020-01-06

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Gints Klimanis ,  Anthony Parks ,  Richard Fritz Lanman, III ,  Noah Kraft ,  Matthew J. Jaffe ,  Jeffrey Ross Baker

IPC: H04R1/10 ,  G10L21/0208 ,  G10L21/0232 ,  G10L25/84 ,  G10L25/90 ,  H04R29/00 ,  G10L21/0216

Abstract: Personal audio systems and methods are disclosed. A personal audio system includes a voice activity detector to determine whether or not an ambient audio stream contains voice activity, a pitch estimator to determine a frequency of a fundamental component of an annoyance noise contained in the ambient audio stream, and a filter bank to attenuate the fundamental component and at least one harmonic component of the annoyance noise to generate a personal audio stream. The filter bank implements a first filter function when the ambient audio stream does not contain voice activity, or a second filter function when the ambient audio stream contains voice activity.

公开(公告)号：US10531178B2

公开(公告)日：2020-01-07

申请号：US15775153

申请日：2016-07-25

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Gints Klimanis ,  Anthony Parks ,  Richard Fritz Lanman, III ,  Noah Kraft ,  Matthew J. Jaffe ,  Jeffrey Ross Baker

IPC: H04N1/10 ,  H04R1/10 ,  G10L21/0232 ,  G10L25/84 ,  G10L25/90 ,  H04R29/00 ,  G10L21/0208 ,  G10L21/0216

Abstract: Personal audio systems and methods are disclosed. A personal audio system includes a voice activity detector to determine whether or not an ambient audio stream contains voice activity, a pitch estimator to determine a frequency of a fundamental component of an annoyance noise contained in the ambient audio stream, and a filter bank to attenuate the fundamental component and at least one harmonic component of the annoyance noise to generate a personal audio stream. The filter bank implements a first filter function when the ambient audio stream does not contain voice activity, or a second filter function when the ambient audio stream contains voice activity.