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公开(公告)号：US10141003B2
公开(公告)日：2018-11-27
申请号：US15316092
申请日：2015-06-08
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Guilin Ma , C. Phillip Brown
IPC: G10L21/0232 , G10L21/0264
Abstract: Example embodiments disclosed herein relate to noise level estimation. A method for noise level estimation is disclosed. The method includes, responsive to an increase of a signal level of a noise signal, calculating an impulsive noise probability of the noise signal, the impulsive noise probability indicating a likelihood that the noise signal is an impulsive noise. The method also includes determining a variable smoothing factor for noise level estimation based on the impulsive noise probability, the variable smoothing factor being associated with a previous estimated level of the noise signal. The method further includes smoothing the noise signal with the variable smoothing factor so as to determine a current estimated level of the noise signal. Corresponding system and computer program products are also disclosed.
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公开(公告)号：US20150254054A1
公开(公告)日：2015-09-10
申请号：US14630869
申请日：2015-02-25
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Xuejing Sun , Bin Cheng , Claus Bauer , Lie Lu , Guilin Ma
Abstract: A method for audio signal processing is provided. The method includes acquiring a first set of metadata associated with consumption of an audio signal by a target user, acquiring a second set of metadata associated with a set of reference users and generating, at least partially based on the first and second sets of metadata, a recommended configuration of at least one parameter for the target user, the at least one parameter being for use in the consumption of the audio signal. Corresponding apparatus and computer program product are also disclosed.
Abstract translation: 提供了一种用于音频信号处理的方法。 该方法包括获取由目标用户消费音频信号相关联的第一组元数据，获取与一组参考用户相关联的第二组元数据，并至少部分地基于第一和第二组元数据， 用于目标用户的至少一个参数的推荐配置，该至少一个参数用于消费音频信号。 还公开了相应的设备和计算机程序产品。
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公开(公告)号：US10594283B2
公开(公告)日：2020-03-17
申请号：US15309907
申请日：2015-05-22
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Guilin Ma , Xiguang Zheng
Abstract: Example embodiments disclosed herein relate to audio signal loudness control. A method for controlling loudness of an audio signal is disclosed. The method includes responsive to determining presence of a noise signal, deriving a target partial loudness adjustment based, at least in part, on at least one of a first factor related to the noise signal and a second factor related to the audio signal. The method further includes determining a target partial loudness of the audio signal based, at least in part, on the target partial loudness adjustment. Corresponding system, apparatus and computer program product are also disclosed.
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公开(公告)号：US10242659B2
公开(公告)日：2019-03-26
申请号：US15878145
申请日：2018-01-23
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Guilin Ma , Xiguang Zheng
IPC: H04R1/10 , G10K11/178 , H03G5/16 , H03G3/32
Abstract: The disclosure relates to combined active noise cancellation and noise compensation in a headphone. An audio processing device includes a selector and a noise compensation unit. The selector can select one of a plurality of first transfer functions based on at least one feature of at least one of an external noise and a content audio signal representing a sound to be reproduced through the headphone. The noise compensation unit can compute a second audio signal by applying the selected first transfer function to a first audio signal, and derive gains for the noise compensation at least based on the second audio signal. The at least one feature can be used to distinguish at least two of the first transfer functions. Each of the first transfer functions can transform the first audio signal to the second audio signal which is assumed as representing a version of the sound represented by the first audio signal, which arrives at an eardrum of a listener wearing the headphone. The first audio signal is one of a noise signal representing the external noise and the content audio signal.
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公开(公告)号：US10356524B2
公开(公告)日：2019-07-16
申请号：US15842313
申请日：2017-12-14
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Guilin Ma , Xiguang Zheng , Chen Zhang , Xuejing Sun
IPC: H04R29/00 , H04R3/04 , H04R3/00 , H04S7/00 , G10L21/0232 , H04R1/40 , H04M1/60 , H04R1/32 , G10L21/0216
Abstract: Example embodiments disclosed herein relate to user experience oriented audio signal processing. There is provided a method for user experience oriented audio signal processing. The method includes obtaining a first audio signal from an audio sensor of an electronic device; computing, based on the first audio signal, a compensation factor for an acoustic path from the electronic device to a listener and applying the compensation factor to a second audio signal outputted from the electronic device. Corresponding system and computer program products are disclosed.
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Patent Agency Ranking
公开(公告)号：US09911404B2
公开(公告)日：2018-03-06
申请号：US15515552
申请日：2015-09-30
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Guilin Ma , Xiguang Zheng
IPC: H04R1/10 , G10K11/178 , H03G3/32 , H03G5/16
CPC classification number: G10K11/178 , G10K11/17827 , G10K11/17861 , G10K11/17873 , G10K2210/1081 , G10K2210/30232 , G10K2210/3025 , G10K2210/3055 , G10K2210/3224 , H03G3/32 , H03G5/165 , H04R1/1083
Abstract: The disclosure relates to combined active noise cancellation and noise compensation in a headphone. An audio processing device includes a selector and a noise compensation unit. The selector can select one of a plurality of first transfer functions based on at least one feature of at least one of an external noise and a content audio signal representing a sound to be reproduced through the headphone. The noise compensation unit can compute a second audio signal by applying the selected first transfer function to a first audio signal, and derive gains for the noise compensation at least based on the second audio signal. The at least one feature can be used to distinguish at least two of the first transfer functions. Each of the first transfer functions can transform the first audio signal to the second audio signal which is assumed as representing a version of the sound represented by the first audio signal, which arrives at an eardrum of a listener wearing the headphone. The first audio signal is one of a noise signal representing the external noise and the content audio signal.
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公开(公告)号：US11330372B2
公开(公告)日：2022-05-10
申请号：US16952367
申请日：2020-11-19
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Xuejing Sun , Guilin Ma , Xiguang Zheng
Abstract: Example embodiments disclosed herein relate to orientation-aware surround sound playback. A method for processing audio on an electronic device that includes a plurality of loudspeakers is disclosed, the loudspeakers arranged in more than one dimension of the electronic device. The method includes, responsive to receipt of a plurality of received audio streams, generating a rendering component associated with the plurality of received audio streams, determining an orientation dependent component of the rendering component, processing the rendering component by updating the orientation dependent component according to an orientation of the loudspeakers and dispatching the received audio streams to the plurality of loudspeakers for playback based on the processed rendering component. Corresponding system and computer program products are also disclosed.
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公开(公告)号：US10362401B2
公开(公告)日：2019-07-23
申请号：US15507195
申请日：2015-08-27
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Xuejing Sun , Guilin Ma , Xiguang Zheng
Abstract: Example embodiments disclosed herein relate to orientation-aware surround sound playback. A method for processing audio on an electronic device that includes a plurality of loudspeakers is disclosed, the loudspeakers arranged in more than one dimension of the electronic device. The method includes, responsive to receipt of a plurality of received audio streams, generating a rendering component associated with the plurality of received audio streams, determining an orientation dependent component of the rendering component, processing the rendering component by updating the orientation dependent component according to an orientation of the loudspeakers and dispatching the received audio streams to the plurality of loudspeakers for playback based on the processed rendering component. Corresponding system and computer program products are also disclosed.
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公开(公告)号：US10038961B2
公开(公告)日：2018-07-31
申请号：US15316099
申请日：2015-06-02
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Guilin Ma , Xiguang Zheng , C. Phillip Brown
CPC classification number: H04R29/001 , H04R1/1091 , H04R3/04 , H04S7/301
Abstract: Example embodiments disclosed herein relate to modelling a frequency response characteristic of an electro-acoustic transducer. A method includes obtaining at least one measurement of the frequency response characteristic for at least one electro-acoustic transducer of the category. A model of a frequency response characteristic specific to a category of electro-acoustic transducers is generated at least in part based on perceptual importance of a frequency band, an averaged, normalized or microphone compensated measurement such that the distortion of the model is optimized. A further method for estimating a frequency response characteristic of an electro-acoustic transducer is based on the generated model and the sensitivity of the electro-acoustic transducer or headphone. Corresponding system and computer program product are also disclosed.
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公开(公告)号：US11902762B2
公开(公告)日：2024-02-13
申请号：US17736962
申请日：2022-05-04
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Xuejing Sun , Guilin Ma , Xiguang Zheng
CPC classification number: H04R5/04 , H04S1/002 , H04S3/002 , H04S3/02 , H04S7/302 , H04R2420/01 , H04R2420/03 , H04R2499/11 , H04R2499/15 , H04S5/00 , H04S2400/01 , H04S2400/03 , H04S2400/11 , H04S2420/01 , H04S2420/11
Abstract: Example embodiments disclosed herein relate to orientation-aware surround sound playback. A method for processing audio on an electronic device that includes a plurality of loudspeakers is disclosed, the loudspeakers arranged in more than one dimension of the electronic device. The method includes, responsive to receipt of a plurality of received audio streams, generating a rendering component associated with the plurality of received audio streams, determining an orientation dependent component of the rendering component, processing the rendering component by updating the orientation dependent component according to an orientation of the loudspeakers and dispatching the received audio streams to the plurality of loudspeakers for playback based on the processed rendering component. Corresponding system and computer program products are also disclosed.
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