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公开(公告)号:US09747909B2
公开(公告)日:2017-08-29
申请号:US14907542
申请日:2014-07-23
Inventor: Dirk Jeroen Breebaart , Lie Lu , Antonio Mateos Sole , Nicolas R. Tsingos
IPC: G10L19/00 , G10L19/02 , G10L19/025 , G10L19/008 , G10L19/06 , G10L19/26
CPC classification number: G10L19/025 , G10L19/00 , G10L19/008 , G10L19/02 , G10L19/06 , G10L19/26
Abstract: Embodiments are directed to a method for processing an input audio signal, comprising: splitting the input audio signal into at least two components, in which the first component is characterized by fast fluctuations in the input signal envelope, and a second component that is relatively stationary over time; processing the second, stationary component by a decorrelation circuit; and constructing an output signal by combining the output of the decorrelator circuit with the input signal and/or the first component signal.
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公开(公告)号:US09654895B2
公开(公告)日:2017-05-16
申请号:US14909058
申请日:2014-07-24
Inventor: Dirk Jeroen Breebaart , Lie Lu , Nicolas R. Tsingos , Antonio Mateos Sole
IPC: H04R5/02 , H04S7/00 , H04S3/00 , G10L19/008 , 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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公开(公告)号:US09622009B2
公开(公告)日:2017-04-11
申请号:US15263279
申请日:2016-09-12
Applicant: Dolby Laboratories Licensing Corporation
Inventor: Charles Q. Robinson , Nicolas R. Tsingos , Christophe Chabanne
CPC classification number: H04S7/308 , G10L19/008 , G10L19/20 , H04R5/02 , H04R5/04 , H04R27/00 , H04S3/008 , H04S5/00 , H04S5/005 , H04S7/30 , H04S7/302 , H04S7/305 , H04S2400/01 , H04S2400/03 , H04S2400/11 , H04S2420/01 , H04S2420/03 , H04S2420/11 , H04S2420/13
Abstract: Embodiments are described for an adaptive audio system that processes audio data comprising a number of independent monophonic audio streams. One or more of the streams has associated with it metadata that specifies whether the stream is a channel-based or object-based stream. Channel-based streams have rendering information encoded by means of channel name; and the object-based streams have location information encoded through location expressions encoded in the associated metadata. A codec packages the independent audio streams into a single serial bitstream that contains all of the audio data. This configuration allows for the sound to be rendered according to an allocentric frame of reference, in which the rendering location of a sound is based on the characteristics of the playback environment (e.g., room size, shape, etc.) to correspond to the mixer's intent. The object position metadata contains the appropriate allocentric frame of reference information required to play the sound correctly using the available speaker positions in a room that is set up to play the adaptive audio content.
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公开(公告)号:US08755543B2
公开(公告)日:2014-06-17
申请号:US13892507
申请日:2013-05-13
Applicant: Dolby Laboratories Licensing Corporation
Inventor: Christophe Chabanne , Charles Q. Robinson , Nicolas R. Tsingos
IPC: H04R5/02
CPC classification number: H04N5/642 , H04N5/60 , H04R3/12 , H04R5/02 , H04R2499/15 , H04S7/00 , H04S7/30 , H04S2400/11
Abstract: Audio perception in local proximity to visual cues is provided. A device includes a video display, first row of audio transducers, and second row of audio transducers. The first and second rows can be vertically disposed above and below the video display. An audio transducer of the first row and an audio transducer of the second row form a column to produce, in concert, an audible signal. The perceived emanation of the audible signal is from a plane of the video display (e.g., a location of a visual cue) by weighing outputs of the audio transducers of the column In certain embodiments, the audio transducers are spaced farther apart at a periphery for increased fidelity in a center portion of the plane and less fidelity at the periphery.
Abstract translation: 提供本地接近视觉线索的音频感知。 一种设备包括视频显示器,第一排音频换能器和第二排音频换能器。 第一行和第二行可以垂直设置在视频显示器的上方和下方。 第一行的音频换能器和第二排的音频换能器形成一列,以一致地产生一个可听见的信号。 通过对列的音频换能器的输出进行称重,可听信号的感知发射是通过对视频显示器的平面(例如,视觉提示的位置)进行加权的。在某些实施例中,音频换能器在外围间隔更远, 在平面的中心部分增加了保真度,并且在周边具有较低的保真度。
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公开(公告)号:US12156017B2
公开(公告)日:2024-11-26
申请号:US18353063
申请日:2023-07-15
Inventor: Nicolas R. Tsingos , David S. McGrath , Freddie Sanchez , Antonio Mateos Sole
IPC: H04S7/00
Abstract: The positions of a plurality of speakers at a media consumption site are determined. Audio information in an object-based format is received. Gain adjustment value for a sound content portion in the object-based format may be determined based on the position of the sound content portion and the positions of the plurality of speakers. Audio information in a ring-based channel format is received. Gain adjustment value for each ring-based channel in a set of ring-based channels may be determined based on the ring to which the ring-based channel belongs and the positions of the speakers at a media consumption site.
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公开(公告)号:US12047768B2
公开(公告)日:2024-07-23
申请号:US18141538
申请日:2023-05-01
Applicant: Dolby Laboratories Licensing Corporation
Inventor: Nicolas R. Tsingos , Charles Q. Robinson , Jurgen W. Scharpf
CPC classification number: H04S7/307 , H04R5/02 , H04S3/00 , H04S3/008 , H04S5/00 , H04S7/308 , H04S7/40 , H04S2400/01 , H04S2400/11
Abstract: Improved tools for authoring and rendering audio reproduction data are provided. Some such authoring tools allow audio reproduction data to be generalized for a wide variety of reproduction environments. Audio reproduction data may be authored by creating metadata for audio objects. The metadata may be created with reference to speaker zones. During the rendering process, the audio reproduction data may be reproduced according to the reproduction speaker layout of a particular reproduction environment.
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公开(公告)号:US11943605B2
公开(公告)日:2024-03-26
申请号:US17694506
申请日:2022-03-14
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:US11924619B2
公开(公告)日:2024-03-05
申请号:US17943019
申请日:2022-09-12
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor: Mark F. Davis , Nicolas R. Tsingos , C. Phillip Brown
CPC classification number: H04R5/033 , H04S7/304 , H04R2205/022 , H04R2205/024 , H04S2420/01 , H04S2420/03 , H04S2420/11
Abstract: An apparatus and method of rendering audio. A binaural signal is split on an amplitude weighting basis into a front binaural signal and a rear binaural signal, based on perceived position information of the audio. In this manner, the front-back differentiation of the binaural signal is improved.
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公开(公告)号:US11641562B2
公开(公告)日:2023-05-02
申请号:US17364912
申请日:2021-07-01
Applicant: Dolby Laboratories Licensing Corporation
Inventor: Nicolas R. Tsingos , Charles Q. Robinson , Jurgen W. Scharpf
Abstract: Improved tools for authoring and rendering audio reproduction data are provided. Some such authoring tools allow audio reproduction data to be generalized for a wide variety of reproduction environments. Audio reproduction data may be authored by creating metadata for audio objects. The metadata may be created with reference to speaker zones. During the rendering process, the audio reproduction data may be reproduced according to the reproduction speaker layout of a particular reproduction environment.
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公开(公告)号:US11564051B2
公开(公告)日:2023-01-24
申请号:US17329094
申请日:2021-05-24
Inventor: Antonio Mateos Sole , Nicolas R. Tsingos
Abstract: Multiple virtual source locations may be defined for a volume within which audio objects can move. A set-up process for rendering audio data may involve receiving reproduction speaker location data and pre-computing gain values for each of the virtual sources according to the reproduction speaker location data and each virtual source location. The gain values may be stored and used during “run time,” during which audio reproduction data are rendered for the speakers of the reproduction environment. During run time, for each audio object, contributions from virtual source locations within an area or volume defined by the audio object position data and the audio object size data may be computed. A set of gain values for each output channel of the reproduction environment may be computed based, at least in part, on the computed contributions. Each output channel may correspond to at least one reproduction speaker of the reproduction environment.
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