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公开(公告)号：US20240305945A1
公开(公告)日：2024-09-12
申请号：US18607347
申请日：2024-03-15
Inventor： Dirk Jeroen BREEBAART , Antonio MATEOS SOLE , Heiko PURNHAGEN , Nicolas R. TSINGOS
CPC classification number: H04S7/303 , H04R5/02 , H04S3/008 , H04S7/30 , H04S2400/11 , H04S2420/03
Abstract: Described herein is a method (30) of rendering an audio signal (17) for playback in an audio environment (27) defined by a target loudspeaker system (23), the audio signal (17) including audio data relating to an audio object and associated position data indicative of an object position. Method (30) includes the initial step (31) of receiving the audio signal (17). At step (32) loudspeaker layout data for the target loudspeaker system (23) is received. At step (33) control data is received that is indicative of a position modification to be applied to the audio object in the audio environment (27). At step (38) in response to the position data, loudspeaker layout data and control data, rendering modification data is generated. Finally, at step (39) the audio signal (17) is rendered with the rendering modification data to output the audio signal (17) with the audio object at a modified object position that is between loudspeakers within the audio environment (27).
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公开(公告)号：US20240038248A1
公开(公告)日：2024-02-01
申请号：US18366385
申请日：2023-08-07
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Dirk Jeroen BREEBAART
IPC: G10L19/008 , G10L19/012 , G10L19/00 , G10L19/02
CPC classification number: G10L19/008 , G10L19/012 , G10L19/00 , G10L19/0212
Abstract: Encoding/decoding an audio signal having one or more audio components, wherein each audio component is associated with a spatial location. A first audio signal presentation (z) of the audio components, a first set of transform parameters (w(f)), and signal level data (β2) are encoded and transmitted to the decoder. The decoder uses the first set of transform parameters (w(f)) to form a reconstructed simulation input signal intended for an acoustic environment simulation, and applies a signal level modification (α) to the reconstructed simulation input signal. The signal level modification is based on the signal level data (β2) and data (p2) related to the acoustic environment simulation. The attenuated reconstructed simulation input signal is then processed in an acoustic environment simulator. With this process, the decoder does not need to determine the signal level of the simulation input signal, thereby reducing processing load.
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公开(公告)号：US20220272479A1
公开(公告)日：2022-08-25
申请号：US17694506
申请日：2022-03-14
Inventor： Dirk Jeroen BREEBAART , Antonio MATEOS SOLE , Heiko PURNHAGEN , Nicolas R. TSINGOS
Abstract: Described herein is a method (30) of rendering an audio signal (17) for playback in an audio environment (27) defined by a target loudspeaker system (23), the audio signal (17) including audio data relating to an audio object and associated position data indicative of an object position. Method (30) includes the initial step (31) of receiving the audio signal (17). At step (32) loudspeaker layout data for the target loudspeaker system (23) is received. At step (33) control data is received that is indicative of a position modification to be applied to the audio object in the audio environment (27). At step (38) in response to the position data, loudspeaker layout data and control data, rendering modification data is generated. Finally, at step (39) the audio signal (17) is rendered with the rendering modification data to output the audio signal (17) with the audio object at a modified object position that is between loudspeakers within the audio environment (27).
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公开(公告)号：US20210014628A1
公开(公告)日：2021-01-14
申请号：US16938561
申请日：2020-07-24
Inventor： Dirk Jeroen BREEBAART , Antonio MATEOS SOLE , Heiko PURNHAGEN , Nicolas R. TSINGOS
Abstract: Described herein is a method (30) of rendering an audio signal (17) for playback in an audio environment (27) defined by a target loudspeaker system (23), the audio signal (17) including audio data relating to an audio object and associated position data indicative of an object position. Method (30) includes the initial step (31) of receiving the audio signal (17). At step (32) loudspeaker layout data for the target loudspeaker system (23) is received. At step (33) control data is received that is indicative of a position modification to be applied to the audio object in the audio environment (27). At step (38) in response to the position data, loudspeaker layout data and control data, rendering modification data is generated. Finally, at step (39) the audio signal (17) is rendered with the rendering modification data to output the audio signal (17) with the audio object at a modified object position that is between loudspeakers within the audio environment (27).
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5.发明申请公开(公告)号：US20200162835A1
公开(公告)日：2020-05-21
申请号：US16749494
申请日：2020-01-22
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Grant A. DAVIDSON , Kuan-Chieh YEN , Dirk Jeroen BREEBAART
IPC: H04S7/00
Abstract: Methods and systems for designing binaural room impulse responses (BRIRs) for use in headphone virtualizers, and methods and systems for generating a binaural signal in response to a set of channels of a multi-channel audio signal, including by applying a BRIR to each channel of the set, thereby generating filtered signals, and combining the filtered signals to generate the binaural signal, where each BRIR has been designed in accordance with an embodiment of the design method. Other aspects are audio processing units configured to perform any embodiment of the inventive method. In accordance with some embodiments, BRIR design is formulated as a numerical optimization problem based on a simulation model (which generates candidate BRIRs) and at least one objective function (which evaluates each candidate BRIR), and includes identification of a best one of the candidate BRIRs as indicated by performance metrics determined for the candidate BRIRs by each objective function.
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Patent Agency Ranking
公开(公告)号：US20190230461A1
公开(公告)日：2019-07-25
申请号：US16374520
申请日：2019-04-03
Inventor： Dirk Jeroen BREEBAART , Antonio MATEOS SOLE , Heiko PURNHAGEN , Nicolas R. TSINGOS
Abstract: Described herein is a method (30) of rendering an audio signal (17) for playback in an audio environment (27) defined by a target loudspeaker system (23), the audio signal (17) including audio data relating to an audio object and associated position data indicative of an object position. Method (30) includes the initial step (31) of receiving the audio signal (17). At step (32) loudspeaker layout data for the target loudspeaker system (23) is received. At step (33) control data is received that is indicative of a position modification to be applied to the audio object in the audio environment (27). At step (38) in response to the position data, loudspeaker layout data and control data, rendering modification data is generated. Finally, at step (39) the audio signal (17) is rendered with the rendering modification data to output the audio signal (17) with the audio object at a modified object position that is between loudspeakers within the audio environment (27).
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7.发明申请公开(公告)号：US20160358618A1
公开(公告)日：2016-12-08
申请号：US15117647
申请日：2015-02-23
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Lianwu CHEN , Lie LU , Dirk Jeroen BREEBAART
IPC: G10L19/20 , G10L25/21 , G10L19/022
Abstract: Embodiments of the present invention relate to audio object clustering by utilizing temporal variation of audio objects. There is provided a method of estimating temporal variation of an audio object for use in audio object clustering. The method comprises obtaining at least one segment of an audio track associated with the audio object, the at least one segment containing the audio object; estimating variation of the audio object over a time duration of the at least one segment based on at least one property of the audio object and adjusting, at least partially based on the estimated variation of the audio object, a contribution of the audio object to the determination of a centroid in the audio object clustering. Corresponding system and computer program product are disclosed.
Abstract translation: 本发明的实施例涉及通过利用音频对象的时间变化的音频对象聚类。 提供了一种估计用于音频对象聚类的音频对象的时间变化的方法。 所述方法包括获得与所述音频对象相关联的音轨的至少一个段，所述至少一个段包含所述音频对象; 基于所述音频对象的至少一个属性来估计所述音频对象在所述至少一个段的持续时间上的变化，并且至少部分地基于所估计的所述音频对象的变化来调整所述音频对象对所述音频对象的贡献 确定音频对象聚类中的质心。 披露了相应的系统和计算机程序产品。
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公开(公告)号：US20240071411A1
公开(公告)日：2024-02-29
申请号：US18259848
申请日：2022-01-04
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Jundai SUN , Lie LU , Shaofan YANG , Rhonda J. WILSON , Dirk Jeroen BREEBAART
IPC: G10L25/60 , G10L21/0272
CPC classification number: G10L25/60 , G10L21/0272
Abstract: Disclosed is a method for determining one or more dialog quality metrics of a mixed audio signal comprising a dialog component and a noise component, the method comprising separating an estimated dialog component from the mixed audio signal by means of a dialog separator using a dialog separating model determined by training the dialog separator based on the one or more quality metrics; providing the estimated dialog component from the dialog separator to a quality metrics estimator; and determining the one or more quality metrics by means of the quality metrics estimator based on the mixed signal and the estimated dialog component. Further disclosed is a method for training a dialog separator, a system comprising circuitry configured to perform the method, and a non-transitory computer-readable storage medium.
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公开(公告)号：US20240056760A1
公开(公告)日：2024-02-15
申请号：US18258041
申请日：2021-12-16
Inventor： Dirk Jeroen BREEBAART , Giulio CENGARLE , C. Phillip BROWN
CPC classification number: H04S7/304 , H04S3/008 , H04S2400/11 , H04S2400/01 , H04S2400/13 , H04S2420/07 , H04S2420/01
Abstract: A method of audio processing includes performing spatial analysis on a binaural signal to estimate level differences and phase differences characteristic of a binaural filter of the binaural signal, performing object extraction on the binaural audio signal using the estimated level and phase differences to generate a left/right main component signal and a left/right residual component signal. The system may process the left/right main and left/right residual components differently using different object processing parameters for e.g. repositioning, equalization, compression, upmixing, channel remapping or storage to generate a processed binaural signal that provides an improved listening experience. Repositioning may be based on head tracking sensor data.
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公开(公告)号：US20230353970A1
公开(公告)日：2023-11-02
申请号：US18349704
申请日：2023-07-10
Inventor： Dirk Jeroen BREEBAART , Lie LU , Nicolas R. TSINGOS , Antonio MATEOS SOLE
IPC: G10L19/008 , G10L19/20 , H04S3/00 , H04S7/00 , G10L19/00 , G10L19/018
CPC classification number: H04S7/308 , G10L19/00 , G10L19/008 , G10L19/018 , G10L19/20 , H04S3/002 , H04S2400/11 , H04S2400/13 , H04S2400/15 , H04S2420/03 , H04S2420/07
Abstract: Diffuse or spatially large audio objects may be identified for special processing. A decorrelation process may be performed on audio signals corresponding to the large audio objects to produce decorrelated large audio object audio signals. These decorrelated large audio object audio signals may be associated with object locations, which may be stationary or time-varying locations. For example, the decorrelated large audio object audio signals may be rendered to virtual or actual speaker locations. The output of such a rendering process may be input to a scene simplification process. The decorrelation, associating and/or scene simplification processes may be performed prior to a process of encoding the audio data.
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