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公开(公告)号：US12143797B2
公开(公告)日：2024-11-12
申请号：US18309145
申请日：2023-04-28
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Louis D. Fielder , Zhiwei Shuang , Grant A. Davidson , Xiguang Zheng , Mark S. Vinton
Abstract: The present disclosure relates to reverberation generation for headphone virtualization. A method of generating one or more components of a binaural room impulse response (BRIR) for headphone virtualization is described. In the method, directionally-controlled reflections are generated, wherein directionally-controlled reflections impart a desired perceptual cue to an audio input signal corresponding to a sound source location. Then at least the generated reflections are combined to obtain the one or more components of the BRIR. Corresponding system and computer program products are described as well.
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公开(公告)号：US11284184B2
公开(公告)日：2022-03-22
申请号：US17265485
申请日：2019-07-29
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Matthew Conrad Fellers , Louis D. Fielder , Douglas Walter Hansen , Joshua B. Lando , C. Phillip Brown , Rhonda J. Wilson
IPC: G10K11/178 , H04R1/10 , H04R29/00
Abstract: A method of calibrating a feedback-based noise cancellation system of an ear device may involve obtaining a measured plant response of the ear device, obtaining a reference plant response value and determining a plant response variation between the reference plant response value and a value corresponding to the measured plant response. The method may involve obtaining a measured a coupler response of the ear device, obtaining a reference coupler response value and determining a coupler response variation between the reference coupler response value and a value corresponding to the measured coupler response. The method may involve determining, based at least in part on the plant response variation and the coupler response variation, a microphone signal gain correction factor and applying the microphone signal gain correction factor to ear device microphone signals that are input to a feedback loop of the feedback-based noise cancellation system.
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公开(公告)号：US20220264216A1
公开(公告)日：2022-08-18
申请号：US17662407
申请日：2022-05-06
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Lucas E. Saule , Gareth James Selfe , Richard Louis Weisman , Daniel Corey Wiggins , Louis D. Fielder , Peter Michaelian
Abstract: Some headphone systems include two ear cups, a headband assembly, an interface system and a control system. Each ear cup may include an ear cup enclosure, an ear pad assembly, a speaker system and a hinge assembly. The hinge assembly may be disposed within the ear cup enclosure such that it is not visible from outside the ear cup. The headband assembly may connect with each of the ear cups via the hinge assembly. The interface system may include at least one interface and a plurality of input source buttons disposed on at least one of the ear cups. Each of the input source buttons may be configured for selecting a source of audio data received via the at least one interface. The control system may be configured for controlling the speaker system to reproduce audio data received via the interface and selected by one of the input source buttons.
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公开(公告)号：US10382875B2
公开(公告)日：2019-08-13
申请号：US16163863
申请日：2018-10-18
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Louis D. Fielder , Zhiwei Shuang , Grant A. Davidson , Xiguang Zheng , Mark S. Vinton
Abstract: The present disclosure relates to reverberation generation for headphone virtualization. A method of generating one or more components of a binaural room impulse response (BRIR) for headphone virtualization is described. In the method, directionally-controlled reflections are generated, wherein directionally-controlled reflections impart a desired perceptual cue to an audio input signal corresponding to a sound source location. Then at least the generated reflections are combined to obtain the one or more components of the BRIR. Corresponding system and computer program products are described as well.
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公开(公告)号：US10341799B2
公开(公告)日：2019-07-02
申请号：US15522699
申请日：2015-10-28
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Sunil Bharitkar , Louis D. Fielder
Abstract: Embodiments are described for designing a filter in a magnitude domain performing an impedance filtering function over a frequency domain to compensate for directional cues for the left and right ears of the listener as a function of virtual source angles during headphone virtual sound reproduction. The filter is derived by obtaining blocked ear canal and open ear canal transfer functions for loudspeakers placed in a room, obtaining an open ear canal transfer function for a headphone placed on a listening subject, and dividing the loudspeaker transfer functions by the headphone transfer function to invert a headphone response at the entrance of the ear canal and map the ear canal function from the headphone to free field.
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Patent Agency Ranking
公开(公告)号：US20250106576A1
公开(公告)日：2025-03-27
申请号：US18916598
申请日：2024-10-15
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Louis D. Fielder , Zhiwei Shuang , Grant A. Davidson , Xiguang Zheng , Mark S. Vinton
Abstract: The present disclosure relates to reverberation generation for headphone virtualization. A method of generating one or more components of a binaural room impulse response (BRIR) for headphone virtualization is described. In the method, directionally-controlled reflections are generated, wherein directionally-controlled reflections impart a desired perceptual cue to an audio input signal corresponding to a sound source location. Then at least the generated reflections are combined to obtain the one or more components of the BRIR. Corresponding system and computer program products are described as well.
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公开(公告)号：US20230328469A1
公开(公告)日：2023-10-12
申请号：US18309145
申请日：2023-04-28
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Louis D. Fielder , Zhiwei Shuang , Grant A. Davidson , Xiguang Zheng , Mark S. Vinton
CPC classification number: H04S3/004 , H04S7/302 , G10K15/08 , H04S2420/01 , H04S7/304 , H04S2400/01 , H04S5/005
Abstract: The present disclosure relates to reverberation generation for headphone virtualization. A method of generating one or more components of a binaural room impulse response (BRIR) for headphone virtualization is described. In the method, directionally-controlled reflections are generated, wherein directionally-controlled reflections impart a desired perceptual cue to an audio input signal corresponding to a sound source location. Then at least the generated reflections are combined to obtain the one or more components of the BRIR. Corresponding system and computer program products are described as well.
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公开(公告)号：US20220415334A1
公开(公告)日：2022-12-29
申请号：US17779258
申请日：2020-12-03
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Grant A. Davidson , Louis D. Fielder , Mark S. Vinton
IPC: G10L19/032 , G01L19/04
Abstract: The present disclosure relates to the field of audio coding, in particular, it relates to a method for encoding audio signals through a masking model based on a hearing threshold of frequency intervals of the audio signal and a measured energy of the audio signal for the corresponding frequency intervals. The disclosure further relates to an encoder that is capable of carrying out the audio encoding method.
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公开(公告)号：US11330356B2
公开(公告)日：2022-05-10
申请号：US17073045
申请日：2020-10-16
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Lucas E. Saule , Gareth James Selfe , Richard Louis Weisman , Daniel Corey Wiggins , Louis D. Fielder , Peter Michaelian
Abstract: Some headphone systems include two ear cups, a headband assembly, an interface system and a control system. Each ear cup may include an ear cup enclosure, an ear pad assembly, a speaker system and a hinge assembly. The hinge assembly may be disposed within the ear cup enclosure such that it is not visible from outside the ear cup. The headband assembly may connect with each of the ear cups via the hinge assembly. The interface system may include at least one interface and a plurality of input source buttons disposed on at least one of the ear cups. Each of the input source buttons may be configured for selecting a source of audio data received via the at least one interface. The control system may be configured for controlling the speaker system to reproduce audio data received via the interface and selected by one of the input source buttons.
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公开(公告)号：US20210037309A1
公开(公告)日：2021-02-04
申请号：US17073045
申请日：2020-10-16
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Lucas E. Saule , Gareth James Selfe , Richard Louis Weisman , Daniel Corey Wiggins , Louis D. Fielder , Peter Michaelian
Abstract: Some headphone systems include two ear cups, a headband assembly, an interface system and a control system. Each ear cup may include an ear cup enclosure, an ear pad assembly, a speaker system and a hinge assembly. The hinge assembly may be disposed within the ear cup enclosure such that it is not visible from outside the ear cup. The headband assembly may connect with each of the ear cups via the hinge assembly. The interface system may include at least one interface and a plurality of input source buttons disposed on at least one of the ear cups. Each of the input source buttons may be configured for selecting a source of audio data received via the at least one interface. The control system may be configured for controlling the speaker system to reproduce audio data received via the interface and selected by one of the input source buttons.
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