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1. 发明公开

EP3412039A1 AUGMENTED REALITY HEADPHONE ENVIRONMENT RENDERING 有权
公开(公告)号：EP3412039A1
公开(公告)日：2018-12-12
申请号：EP17748169.4
申请日：2017-02-02
申请人： DTS, Inc.
发明人： JOT, Jean-Marc , LEE, Keun Sup , STEIN, Edward
IPC分类号： H04S5/00 , H04S7/00 , G10K15/08
CPC分类号： H04S7/306 , G10L19/00 , G10L19/008 , G10L19/018 , G10L19/20 , H04S1/005 , H04S3/002 , H04S7/301 , H04S7/308 , H04S2400/11 , H04S2400/15 , H04S2420/01 , H04S2420/03 , H04S2420/07
摘要： Accurate modeling of acoustic reverberation can be essential to generating and providing a realistic virtual reality or augmented reality experience for a participant. In an example, a reverberation signal for playback using headphones can be provided. The reverberation signal can correspond to a virtual sound source signal originating at a specified location in a local listener environment. Providing the reverberation signal can include, among other things, using information about a reference impulse response from a reference environment and using characteristic information about reverberation decay in a local environment of the participant. Providing the reverberation signal can further include using information about a relationship between a volume of the reference environment and a volume of the local environment of the participant.

2. 发明授权

EP3011764B1 BASS MANAGEMENT FOR AUDIO RENDERING 有权转让
公开(公告)号：EP3011764B1
公开(公告)日：2018-11-21
申请号：EP14738968.8
申请日：2014-06-17
申请人： Dolby Laboratories Licensing Corporation
发明人： FISCHER, David Matthew , EGGERDING, Timothy James , RADZIK, Eugene Edward , NOEL, Adam Christopher , MCGRATH, David S.
IPC分类号： H04S7/00 , H04S5/00 , H04R3/12
CPC分类号： H04S7/308 , H03G11/008 , H04R3/04 , H04R3/12 , H04R3/14 , H04S3/008 , H04S5/00 , H04S7/30 , H04S2400/03 , H04S2400/07 , H04S2400/11
摘要： Improved methods and devices for processing low-frequency audio data are provided. A bass extraction process may involve applying low-pass filters to received audio object signals, to produce extracted low-frequency audio signals. The bass extraction process may be performed prior to a process of rendering audio objects into speaker feed signals. A bass management process may involve routing the extracted low-frequency audio signals to the one or more speakers capable of reproducing low-frequency audio signals.

3. 发明公开

EP3369175A1 OBJECT-BASED AUDIO SIGNAL BALANCING 有权转让
公开(公告)号：EP3369175A1
公开(公告)日：2018-09-05
申请号：EP16860811.5
申请日：2016-10-27
申请人： Jot, Jean-Marc , Smith, Brandon , Thompson, Jeffrey , Fejzo, Zoran
发明人： Jot, Jean-Marc , Smith, Brandon , Thompson, Jeffrey , Fejzo, Zoran
IPC分类号： H03G3/00
CPC分类号： H04S7/307 , G10L19/008 , G10L19/167 , G10L19/20 , G10L21/0324 , H03G3/005 , H03G3/3005 , H03G3/3089 , H03G7/002 , H03G7/007 , H04S3/008 , H04S7/308 , H04S2400/13 , H04S2420/03
摘要： Systems, devices, and methods are described herein for adjusting a relationship between dialog and non-dialog signals in an audio program. In an example, information about a long-term dialog balance for an audio program can be received. The long-term loudness dialog balance can indicate a dialog-to-non-dialog loudness relationship of the audio program. A dialog loudness preference can be received, such as from a user, from a database, or from another source. A desired long-term gain or attenuation can be determined according to a difference between the received long-term dialog balance for the audio program and the received dialog balance preference. The long-term gain or attenuation can be applied to at least one of the dialog signal and the non-dialog signal of the audio program to render an audio program that is enhanced according to the loudness preference.

4. 发明授权

EP3133840B1 METHOD AND SIGNAL PROCESSING UNIT FOR MAPPING A PLURALITY OF INPUT CHANNELS OF AN INPUT CHANNEL CONFIGURATION TO OUTPUT CHANNELS OF AN OUTPUT CHANNEL CONFIGURATION 有权
公开(公告)号：EP3133840B1
公开(公告)日：2018-07-04
申请号：EP16187406.0
申请日：2014-07-15
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Herre, Jürgen , Küch, Fabian , Kratschmer, Michael , Kuntz, Achim , Faller, Christoph
IPC分类号： H04S3/00 , H04S7/00 , G10L19/008
CPC分类号： H04S7/303 , G10L19/008 , H04R5/02 , H04S3/002 , H04S3/02 , H04S7/30 , H04S7/302 , H04S7/305 , H04S7/308 , H04S2400/01 , H04S2400/03 , H04S2420/03
摘要： An apparatus for mapping a first input channel and a second input channel of an input channel configuration to at least one output channel of an output channel configuration, wherein each input channel and each output channel has a direction in which an associated loudspeaker is located relative to a central listener position, wherein the apparatus is configured to map the first input channel to a first output channel of the output channel configuration. The apparatus is further configured to at least one of a) map the second input channel to the first output channel, comprising processing the second input channel by applying at least one of an equalization filter and a decorrelation filter to the second input channel, and b) despite of the fact that an angle deviation between a direction of the second input channel and a direction of the first output channel is less than an angle deviation between a direction of the second input channel and the second output channel and/or is less than an angle deviation between the direction of the second input channel and the direction of the third output channel, map the second input channel to the second and third output channels by panning between the second and third output channels.

5. 发明授权

EP3061270B1 METHOD FOR AND APPARATUS FOR DECODING AN AMBISONICS AUDIO SOUNDFIELD REPRESENTATION FOR AUDIO PLAYBACK USING 2D SETUPS 有权转让
标题翻译：用于解码使用2D设置的音频播放的AMBISONICS音频声场表示的方法和设备
公开(公告)号：EP3061270B1
公开(公告)日：2017-07-12
申请号：EP14786876.4
申请日：2014-10-20
申请人： Dolby International AB
发明人： KEILER, Florian , BOEHM, Johannes
IPC分类号： H04S3/02 , H04S7/00
CPC分类号： H04S3/02 , H04S7/308 , H04S2400/11 , H04S2420/07 , H04S2420/11

6. 发明授权

EP2986034B1 AUDIO SYSTEM EQUALIZATION FOR PORTABLE MEDIA PLAYBACK DEVICES 有权
标题翻译：便携式媒体播放设备的音频系统均衡
公开(公告)号：EP2986034B1
公开(公告)日：2017-05-31
申请号：EP15178118.4
申请日：2011-04-13
申请人： Dolby Laboratories Licensing Corporation
发明人： SEEFELDT, Alan J.
IPC分类号： H04S7/00
CPC分类号： H04S7/308 , H04S7/301

7. 发明授权

EP2926572B1 COLLABORATIVE SOUND SYSTEM 有权
标题翻译：合作声音系统
公开(公告)号：EP2926572B1
公开(公告)日：2017-05-17
申请号：EP13789138.8
申请日：2013-10-28
申请人： Qualcomm Incorporated
发明人： KIM, Lae-Hoon , XIANG, Pei
IPC分类号： H04S3/00 , H04R5/02 , H04S7/00
CPC分类号： H04R5/02 , H04R5/00 , H04R2205/024 , H04R2420/07 , H04S3/00 , H04S7/308 , H04S2400/13

8. 发明公开

EP3133840A1 METHOD AND SIGNAL PROCESSING UNIT FOR MAPPING A PLURALITY OF INPUT CHANNELS OF AN INPUT CHANNEL CONFIGURATION TO OUTPUT CHANNELS OF AN OUTPUT CHANNEL CONFIGURATION 有权
标题翻译：方法和信号处理单元输入信道配置多个输入通道为了使输出信道配置输出通道转让
公开(公告)号：EP3133840A1
公开(公告)日：2017-02-22
申请号：EP16187406.0
申请日：2014-07-15
申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
发明人： Herre, Jürgen , Küch, Fabian , Kratschmer, Michael , Kuntz, Achim , Faller, Christoph
IPC分类号： H04S3/00 , H04S7/00 , G10L19/008
CPC分类号： H04S7/303 , G10L19/008 , H04R5/02 , H04S3/002 , H04S3/02 , H04S7/30 , H04S7/302 , H04S7/305 , H04S7/308 , H04S2400/01 , H04S2400/03 , H04S2420/03
摘要： A method for mapping a plurality of input channels of an input channel configuration to output channels of an output channel configuration comprises providing a set of rules associated with each input channel of the plurality of input channels, wherein the rules define different mappings between the associated input channel and a set of output channels. For each input channel of the plurality of input channels, a rule associated with the input channel is accessed, determination is made whether the set of output channels defined in the accessed rule is present in the output channel configuration, and the accessed rule is selected if the set of output channels defined in the accessed rule is present in the output channel configuration. The input channels are mapped to the output channels according to the selected rule. A rule of a set of rules associated with an input channel comprising a rear center direction defines mapping the input channel to two output channels, one located on the left side of a front center direction and one located on the right side of the front center direction, wherein the rule further defines using a gain coefficient of less than one if an angle of the two output channels relative to the rear center direction is more than 90°
摘要翻译：一种用于绘制的输入信道配置到一个输出信道配置的输出通道的输入信道与多个包括提供一组与输入信道的多个每个输入通道相关联的规则，worin规则方法定义相关联的输入之间的不同映射信道和一组输出通道。对于输入信道的多个每个输入通道，与所述输入通道相关联的规则被访问时，确定是否设定在所访问的规则定义的输出信道的存在于输出信道的配置，和所访问的规则被选择的，如果该组中被访问的规则定义的输出信道的存在于输出信道的配置。输入信道被映射到gemäß到所选择的规则的输出通道。一组包括后中心方向与输入信道相关联的规则的规则定义映射输入通道到两个输出通道，一个位于前中心方向的左侧和一个位于所述前部中心方向的右侧使用小于一的增益系数如果在两个输出信道相对于后中心方向的角度大于90°worin规则还限定

9. 发明公开

EP3125240A1 METHOD AND APPARATUS FOR RENDERING ACOUSTIC SIGNAL, AND COMPUTER-READABLE RECORDING MEDIUM 有权
标题翻译： METHOD AND APPARATUS FOR DISPLAYING在声学信号与计算机可读记录介质
公开(公告)号：EP3125240A1
公开(公告)日：2017-02-01
申请号：EP15768374.9
申请日：2015-03-24
申请人： Samsung Electronics Co., Ltd.
发明人： CHON, Sang-bae , KIM, Sun-min , JO, Hyun
IPC分类号： G10L19/008
CPC分类号： H04S7/308 , G10L19/008 , H04S3/002 , H04S3/008 , H04S2400/01 , H04S2400/03 , H04S2400/11 , H04S2400/13 , H04S2420/01 , H04S2420/03
摘要： In cases of rendering a multichannel signal such as a 22.2 channel signal as a 5.1 channel signal, a three dimensional (3D) audio signal may be reproduced using a two dimensional (2D) output channel, but rendered audio signals are sensitively affected by a layout of speakers and may cause distortion of a sound image when the layout of arranged speakers is different from a standard layout.
The present invention may solve the aforementioned problem of the prior art. The audio signal rendering method for reducing distortion of a sound image even when the layout of the arranged speakers is different from the standard layout, according to one embodiment of the present invention, includes: receiving a multi-channel signal including a plurality of input channels that are to be converted to a plurality of output channels; obtaining deviation information about at least one output channel, from a location of a speaker and a standard location corresponding to each of the plurality of output channels; and modifying a panning gain from a height channel included in the plurality of input channels to the output channel having the deviation information, based on obtained deviation information.
摘要翻译：在渲染的多声道信号的情况下：例如作为5.1声道信号，一个三维（3D）音频信号可使用二维（2D）输出通道被再现，但呈现的音频信号中的22.2信道信号是敏感的影响的布局扬声器的，并且可能导致声音图像的失真当布置扬声器的布局是从标准布局不同。本发明可以解决上述问题的现有技术。用于减少一个声音图像的失真即使当布置扬声器的布局是从标准布局，雅鼎在本发明一个实施例，不同的音频信号渲染方法，包括：接收多通道信号包括输入信道与多个没有被转换为输出信道与多个; 获得关于至少一个输出通道偏差信息，从一个扬声器和一个标准的位置对应于每个输出信道的多个的位置; 和包括在输入信道的多元性到具有偏差信息的输出通道修改从一个高度信道摇摄增益，基于偏差获得的信息。

10. 发明公开

EP3056025A2 SPATIAL AUDIO PROCESSING SYSTEM AND METHOD 有权
标题翻译：系统VERFAHREN ZUR VERARBEITUNG VONRÄUMLICHEM音频
公开(公告)号：EP3056025A2
公开(公告)日：2016-08-17
申请号：EP14792924.4
申请日：2014-10-02
申请人： Dolby Laboratories Licensing Corporation
发明人： MCGRATH, David S. , MARIETTE, Nicholas Claude
IPC分类号： H04S3/00
CPC分类号： H04S7/308 , G10L19/167 , H04S3/00 , H04S5/005 , H04S2400/11
摘要： A spatial audio processing system and method including the steps of: dividing the series of virtual speakers into a series of horizontal planes around the expected listener; rendering the audio source to an intermediate spatial format for playback over a series of virtual speakers arranged in each of the series of planes around the listener, the rendering including: an initial panning of the spatialized virtual audio source to each of the horizontal planes to produce a plane rendered audio emission; a subsequent panning of each of the plane rendered audio emissions to a series of virtual speaker locations within each plane, with the subsequent panning utilizing a series of panning curves which are spatially smoothed to can include spatial frequency components which are less than the Nyquist sampling rate of the audio source.
摘要翻译：一种空间音频处理系统和方法，包括以下步骤：将所述一系列虚拟扬声器分成围绕所述预期收听者的一系列水平平面; 将音频源呈现为中间空间格式，用于通过布置在收听者周围的一系列平面中的每一个中的一系列虚拟扬声器进行回放，所述渲染包括：空间化虚拟音频源到每个水平平面的初始平移以产生飞机提供音频发射; 将每个平面呈现的音频发射随后平移到每个平面内的一系列虚拟扬声器位置，随后的平移利用空间平滑的一系列平移曲线，可以包括小于奈奎斯特采样率的空间频率分量的音频源。

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