公开(公告)号：US11671779B2

公开(公告)日：2023-06-06

申请号：US17492683

申请日：2021-10-04

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Louis D. Fielder ,  Zhiwei Shuang ,  Grant A. Davidson ,  Xiguang Zheng ,  Mark S. Vinton

IPC: H04S3/00 ,  H04S7/00 ,  H04S5/00 ,  G10K15/08

CPC classification number: H04S3/004 ,  G10K15/08 ,  H04S5/005 ,  H04S7/302 ,  H04S7/304 ,  H04S2400/01 ,  H04S2420/01

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.

公开(公告)号：US20220103959A1

公开(公告)日：2022-03-31

申请号：US17492683

申请日：2021-10-04

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Louis D. Fielder ,  Zhiwei Shuang ,  Grant A. Davidson ,  Xiguang Zheng ,  Mark S. Vinton

IPC: H04S3/00 ,  H04S7/00 ,  G10K15/08 ,  H04S5/00

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.

公开(公告)号：US11212638B2

公开(公告)日：2021-12-28

申请号：US17012076

申请日：2020-09-04

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Kuan-Chieh Yen ,  Dirk Jeroen Breebaart ,  Grant A. Davidson ,  Rhonda Wilson ,  David M. Cooper ,  Zhiwei Shuang

IPC: H04S7/00 ,  G10L19/008 ,  H04S3/00

Abstract: In some embodiments, virtualization methods for generating a binaural signal in response to channels of a multi-channel audio signal, which apply a binaural room impulse response (BRIR) to each channel including by using at least one feedback delay network (FDN) to apply a common late reverberation to a downmix of the channels. In some embodiments, input signal channels are processed in a first processing path to apply to each channel a direct response and early reflection portion of a single-channel BRIR for the channel, and the downmix of the channels is processed in a second processing path including at least one FDN which applies the common late reverberation. Typically, the common late reverberation emulates collective macro attributes of late reverberation portions of at least some of the single-channel BRIRs. Other aspects are headphone virtualizers configured to perform any embodiment of the method.

公开(公告)号：US11140501B2

公开(公告)日：2021-10-05

申请号：US16986308

申请日：2020-08-06

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Louis D. Fielder ,  Zhiwei Shuang ,  Grant A. Davidson ,  Xiguang Zheng ,  Mark S. Vinton

IPC: H04S3/00 ,  H04S7/00 ,  H04S5/00 ,  G10K15/08

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.

公开(公告)号：US10750306B2

公开(公告)日：2020-08-18

申请号：US16510849

申请日：2019-07-12

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Louis D. Fielder ,  Zhiwei Shuang ,  Grant A. Davidson ,  Xiguang Zheng ,  Mark S. Vinton

IPC: H04S3/00 ,  H04S7/00 ,  H04S5/00 ,  G10K15/08

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.

公开(公告)号：US10142763B2

公开(公告)日：2018-11-27

申请号：US15039695

申请日：2014-11-24

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Zhiwei Shuang ,  David S. McGrath ,  Michael W. Mason

IPC: H04S7/00 ,  H03G9/02

Abstract: Embodiments of the present invention relate to audio signal processing. Specifically, a method for processing audio signal is provided, the method comprising: determining, for a current frame of the audio signal, frequency band energies for a plurality of predefined frequency bands at least partially based on frequency parameters of the current frame; generating frequency band gains for the plurality of predefined frequency bands by processing the frequency band energies; and generating frequency bin gains for the current frame based on the frequency band gains using predefined frequency band filter banks, the frequency band filter banks being specific to the plurality of predefined frequency bands. Corresponding system and computer program product are also disclosed.

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

IPC: H04S3/00 ,  G10K15/08 ,  H04S5/00 ,  H04S7/00

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.

公开(公告)号：US12089033B2

公开(公告)日：2024-09-10

申请号：US18108663

申请日：2023-02-13

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Kuan-Chieh Yen ,  Dirk Jeroen Breebaart ,  Grant A. Davidson ,  Rhonda Wilson ,  David M. Cooper ,  Zhiwei Shuang

IPC: H04S7/00 ,  G10L19/008 ,  H04S3/00

CPC classification number: H04S7/306 ,  G10L19/008 ,  H04S3/004 ,  H04S7/307 ,  H04S2400/03 ,  H04S2400/13 ,  H04S2420/01

Abstract: In some embodiments, virtualization methods for generating a binaural signal in response to channels of a multi-channel audio signal, which apply a binaural room impulse response (BRIR) to each channel including by using at least one feedback delay network (FDN) to apply a common late reverberation to a downmix of the channels. In some embodiments, input signal channels are processed in a first processing path to apply to each channel a direct response and early reflection portion of a single-channel BRIR for the channel, and the downmix of the channels is processed in a second processing path including at least one FDN which applies the common late reverberation. Typically, the common late reverberation emulates collective macro attributes of late reverberation portions of at least some of the single-channel BRIRs. Other aspects are headphone virtualizers configured to perform any embodiment of the method.

公开(公告)号：US11582574B2

公开(公告)日：2023-02-14

申请号：US17560301

申请日：2021-12-23

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Kuan-Chieh Yen ,  Dirk Jeroen Breebaart ,  Grant A. Davidson ,  Rhonda Wilson ,  David M. Cooper ,  Zhiwei Shuang

IPC: H04S7/00 ,  H04S3/00 ,  G10L19/008

Abstract: In some embodiments, virtualization methods for generating a binaural signal in response to channels of a multi-channel audio signal, which apply a binaural room impulse response (BRIR) to each channel including by using at least one feedback delay network (FDN) to apply a common late reverberation to a downmix of the channels. In some embodiments, input signal channels are processed in a first processing path to apply to each channel a direct response and early reflection portion of a single-channel BRIR for the channel, and the downmix of the channels is processed in a second processing path including at least one FDN which applies the common late reverberation. Typically, the common late reverberation emulates collective macro attributes of late reverberation portions of at least some of the single-channel BRIRs. Other aspects are headphone virtualizers configured to perform any embodiment of the method.

公开(公告)号：US10555109B2

公开(公告)日：2020-02-04

申请号：US16541079

申请日：2019-08-14

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Kuan-Chieh Yen ,  Dirk Jeroen Breebaart ,  Grant A. Davidson ,  Rhonda Wilson ,  David M. Cooper ,  Zhiwei Shuang

IPC: H04S7/00 ,  G10L19/008

Abstract: In some embodiments, virtualization methods for generating a binaural signal in response to channels of a multi-channel audio signal, which apply a binaural room impulse response (BRIR) to each channel including by using at least one feedback delay network (FDN) to apply a common late reverberation to a downmix of the channels. In some embodiments, input signal channels are processed in a first processing path to apply to each channel a direct response and early reflection portion of a single-channel BRIR for the channel, and the downmix of the channels is processed in a second processing path including at least one FDN which applies the common late reverberation. Typically, the common late reverberation emulates collective macro attributes of late reverberation portions of at least some of the single-channel BRIRs. Other aspects are headphone virtualizers configured to perform any embodiment of the method.