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91. 发明申请

US20160111099A1 Reconstruction of Audio Scenes from a Downmix 有权
标题翻译：从混音重建音频场景
公开(公告)号：US20160111099A1
公开(公告)日：2016-04-21
申请号：US14893377
申请日：2014-05-23
申请人： DOLBY INTERNATIONAL AB
发明人： Toni HIRVONEN , Heiko PURNHAGEN , Leif Jonas SAMUELSSON , Lars VILLEMOES
IPC分类号： G10L19/008 , G10L19/02 , G10L25/06 , H04S3/00 , H04S3/02
CPC分类号： G10L19/008 , G10L19/0204 , G10L19/20 , G10L25/06 , H04S3/008 , H04S3/02 , H04S5/00 , H04S7/30 , H04S2400/03 , H04S2400/11 , H04S2420/03
摘要： Audio objects are associated with positional metadata. A received downmix signal comprises downmix channels that are linear combinations of one or more audio objects and are associated with respective positional locators. In a first aspect, the downmix signal, the positional metadata and frequency-dependent object gains are received. An audio object is reconstructed by applying the object gain to an upmix of the downmix signal in accordance with coefficients based on the positional metadata and the positional locators. In a second aspect, audio objects have been encoded together with at least one bed channel positioned at a positional locator of a corresponding downmix channel. The decoding system receives the downmix signal and the positional metadata of the audio objects. A bed channel is reconstructed by suppressing the content representing audio objects from the corresponding downmix channel on the basis of the positional locator of the corresponding downmix channel.
摘要翻译：音频对象与位置元数据相关联。接收的下混合信号包括作为一个或多个音频对象的线性组合的下混通道，并且与相应的位置定位器相关联。在第一方面，接收降混信号，位置元数据和频率依赖对象增益。根据基于位置元数据和位置定位器的系数，将对象增益应用于缩混信号的上混合来重构音频对象。在第二方面，音频对象已经与位于对应的下混通道的位置定位器处的至少一个床通道一起被编码。解码系统接收下混合信号和音频对象的位置元数据。基于对应的下混通道的位置定位器，通过从对应的下混通道中抑制表示音频对象的内容来重构床通道。

92. 发明申请

US20160111097A1 METHODS FOR AUDIO ENCODING AND DECODING, CORRESPONDING COMPUTER-READABLE MEDIA AND CORRESPONDING AUDIO ENCODER AND DECODER 有权
标题翻译：音频编码和解码方法，相关的可编程媒体和相关的音频编码器和解码器
公开(公告)号：US20160111097A1
公开(公告)日：2016-04-21
申请号：US14890793
申请日：2014-05-23
申请人： DOLBY INTERNATIONAL AB
发明人： Heiko PURNHAGEN , Lars VILLEMOES , Leif Jonas SAMUELSSON , Toni HIRVONEN
IPC分类号： G10L19/008 , H04S3/02
CPC分类号： G10L19/008 , G10L19/20 , H04S3/02 , H04S5/00 , H04S7/30 , H04S2400/03 , H04S2400/11 , H04S2420/03 , H04S2420/07
摘要： The present disclosure provides methods, devices and computer program products which provide less complex and more flexible control of the introduced decorrelation in an audio coding system. According to the disclosure, this is achieved by calculating and using two weighting factors, one for an approximated audio object and one for a decorrelated audio object, for introduction of decorrelation of audio objects in the audio coding system.
摘要翻译：本公开提供了在音频编码系统中提供对引入的去相关的较不复杂和更灵活的控制的方法，设备和计算机程序产品。根据本公开，这是通过计算和使用两个加权因子来实现的，其中一个用于近似音频对象，一个用于解相关音频对象，用于引入音频编码系统中音频对象的去相关。

93. 发明授权

US09319819B2 Binaural rendering method and apparatus for decoding multi channel audio 有权
标题翻译：用于解码多声道音频的双耳渲染方法和装置
公开(公告)号：US09319819B2
公开(公告)日：2016-04-19
申请号：US14341554
申请日：2014-07-25
申请人： Electronics and Telecommunications Research Institute
发明人： Yong Ju Lee , Jeong Il Seo , Jae Hyoun Yoo , Seung Kwon Beack , Jong Mo Sung , Tae Jin Lee , Kyeong Ok Kang , Jin Woong Kim , Tae Jin Park , Dae Young Jang , Keun Woo Choi
IPC分类号： H04R5/00 , H04S7/00 , G10L19/008
CPC分类号： G10L19/008 , H04S7/00 , H04S7/30 , H04S2400/01 , H04S2400/03
摘要： Disclosed is a binaural rendering method and apparatus for decoding a multichannel audio signal. The binaural rendering method may include: extracting an early reflection component and a late reverberation component from a binaural filter; generating a stereo audio signal by performing binaural rendering of a multichannel audio signal base on the early reflection component; and applying the late reverberation component to the generated stereo audio signal.
摘要翻译：公开了一种用于对多声道音频信号进行解码的双耳渲染方法和装置。双耳渲染方法可以包括：从双耳滤波器提取早期反射分量和后期混响分量; 通过基于早期反射分量执行多声道音频信号的双耳渲染来产生立体声音频信号; 以及将后期混响分量应用于所生成的立体声音频信号。

94. 发明申请

US20160104496A1 EFFICIENT CODING OF AUDIO SCENES COMPRISING AUDIO OBJECTS 有权
标题翻译：包含音频对象的音频场景的有效编码
公开(公告)号：US20160104496A1
公开(公告)日：2016-04-14
申请号：US14893512
申请日：2014-05-23
申请人： DOLBY INTERNATIONAL AB
发明人： Heiko PURNHAGEN , Kristofer KJOERLING , Toni HIRVONEN , Lars VILLEMOES , Dirk Jeroen BREEBAART
IPC分类号： G10L19/008 , H04S3/00
CPC分类号： G10L19/008 , H04S3/008 , H04S2400/01 , H04S2400/03 , H04S2400/13 , H04S2400/15 , H04S2420/03 , H04S2420/07
摘要： There is provided encoding and decoding methods for encoding and decoding of object based audio. An exemplary encoding method includes inter alia calculating M downmix signals by forming combinations of N audio objects, wherein M≦N, and calculating parameters which allow reconstruction of a set of audio objects formed on basis of the N audio objects from the M downmix signals. The calculation of the M downmix signals is made according to a criterion which is independent of any loudspeaker configuration.
摘要翻译：提供了用于编码和解码基于对象的音频的编码和解码方法。一种示例性的编码方法尤其包括通过形成N个音频对象的组合来计算M个下混合信号，其中M＆NlE; N，以及计算允许根据M个下混合信号重建基于N个音频对象的一组音频对象的参数。根据独立于任何扬声器配置的标准来进行M下混信号的计算。

95. 发明申请

US20160080884A1 AUDIO SIGNAL PROCESSING METHOD 有权
标题翻译：音频信号处理方法
公开(公告)号：US20160080884A1
公开(公告)日：2016-03-17
申请号：US14786604
申请日：2014-04-24
申请人： INTELLECTUAL DISCOVERY CO., LTD.
发明人： Jeongook SONG , Myungsuk SONG , Hyun Oh OH , Taegyu LEE
IPC分类号： H04S7/00 , H04S5/00
CPC分类号： H04S7/302 , G10L19/008 , H04S3/008 , H04S5/005 , H04S2400/03 , H04S2400/11 , H04S2400/15
摘要： Disclosed is an audio signal processing method. The audio signal processing method according to the present invention comprises the steps of: receiving a bit-stream including at least one of a channel signal and an object signal; receiving a user's environment information; decoding at least one of the channel signal and the object signal on the basis of the received bit-stream; generating the user's reproducing channel information on the basis of the user's received environment information; and generating a reproducing signal through a flexible renderer on the basis of at least one of the channel signal and the object signal and the user's reproducing channel information.
摘要翻译：公开了一种音频信号处理方法。根据本发明的音频信号处理方法包括以下步骤：接收包括信道信号和对象信号中的至少一个的比特流; 接收用户的环境信息; 基于接收到的比特流来解码信道信号和对象信号中的至少一个; 基于用户接收的环境信息生成用户的再现频道信息; 以及基于所述信道信号和所述对象信号以及所述用户的再现信道信息中的至少一个，通过柔性渲染器生成再现信号。

96. 发明申请

US20160035358A1 SYSTEMS, METHODS, APPARATUS, AND COMPUTER-READABLE MEDIA FOR THREE-DIMENSIONAL AUDIO CODING USING BASIS FUNCTION COEFFICIENTS 有权
标题翻译：使用基本功能系统进行三维音频编码的系统，方法，设备和计算机可读介质
公开(公告)号：US20160035358A1
公开(公告)日：2016-02-04
申请号：US14879825
申请日：2015-10-09
申请人： QUALCOMM INCORPORATED
发明人： Dipanjan Sen
IPC分类号： G10L19/008 , H04S3/00
CPC分类号： G10L19/008 , H04S3/008 , H04S2400/01 , H04S2400/03
摘要： Systems, methods, and apparatus for a unified approach to encoding different types of audio inputs are described.
摘要翻译：描述了用于编码不同类型的音频输入的统一方法的系统，方法和装置。

97. 发明授权

US09226073B2 Audio output balancing during synchronized playback 有权
标题翻译：同步播放期间的音频输出平衡
公开(公告)号：US09226073B2
公开(公告)日：2015-12-29
申请号：US14174253
申请日：2014-02-06
申请人： Sonos, Inc.
发明人： Aurelio Rafael Ramos , Timothy W. Sheen
IPC分类号： H03G5/00 , H04R3/14 , H04R3/04 , H04R11/00 , H03G3/00 , H04R27/00
CPC分类号： H04R3/14 , H03G3/001 , H03G3/20 , H03G11/008 , H04R3/04 , H04R3/12 , H04R5/04 , H04R11/00 , H04R27/00 , H04R2227/003 , H04R2227/005 , H04R2430/03 , H04S7/307 , H04S2400/03
摘要： Systems and method are provided herein for balancing of outputs from playback devices playing audio content in synchrony. In one embodiment, the balancing of outputs may involve receiving a first audio signal to be played by a first playback device according to a first crossover frequency, determining a limiting result by applying a limiting function associated with a second playback device to a second audio signal to be played by the second playback device according to a second crossover frequency, and based on the first limiting result, configuring the first playback device to play the first audio signal according to a third crossover frequency. In some cases, the first and second playback devices may be configured to play the first and second audio signals, respectively, in synchrony.
摘要翻译：本文提供了用于平衡播放音频内容的播放设备的输出的系统和方法。在一个实施例中，输出的平衡可以包括根据第一交越频率接收要由第一播放设备播放的第一音频信号，通过将与第二播放设备相关联的限制功能应用于第二音频信号来确定限制结果根据第二交越频率由第二播放设备播放，并且基于第一限制结果，配置第一播放设备以根据第三交越频率播放第一音频信号。在一些情况下，第一和第二播放设备可以被配置为分别同步地播放第一和第二音频信号。

98. 发明申请

US20150355713A1 LOW-FREQUENCY EFFECTS HAPTIC CONVERSION SYSTEM 有权
标题翻译：低频效应转换系统
公开(公告)号：US20150355713A1
公开(公告)日：2015-12-10
申请号：US14737730
申请日：2015-06-12
申请人： Immersion Corporation
发明人： Robert LACROIX , Satvir Singh BHATIA , David BIRNBAUM , Christopher J. ULLRICH , Amaya Becvar WEDDLE , Juan Manuel CRUZ-HERNANDEZ
IPC分类号： G06F3/01 , H04S3/00
CPC分类号： G10L19/018 , G06F3/016 , G06F3/165 , G10L19/008 , H04R3/14 , H04R2499/11 , H04S3/008 , H04S7/307 , H04S2400/03 , H04S2400/07
摘要： A system is provided that produces haptic effects. The system receives an audio signal that includes a low-frequency effects audio signal. The system further extracts the low-frequency effects audio signal from the audio signal. The system further converts the low-frequency effects audio signal into a haptic signal by shifting frequencies of the low-frequency effects audio signal to frequencies within a target frequency range of a haptic output device. The system further sends the haptic signal to the haptic output device, where the haptic signal causes the haptic output device to output one or more haptic effects.
摘要翻译：提供一种产生触觉效果的系统。该系统接收包括低频效果音频信号的音频信号。系统还从音频信号中提取低频效果音频信号。该系统通过将低频效果音频信号的频率移动到触觉输出装置的目标频率范围内的频率，将低频效果音频信号转换为触觉信号。该系统还将触觉信号发送到触觉输出设备，其中触觉信号使得触觉输出设备输出一个或多个触觉效果。

99. 发明授权

US09167346B2 Object-oriented audio streaming system 有权
标题翻译：面向对象音频流系统
公开(公告)号：US09167346B2
公开(公告)日：2015-10-20
申请号：US13791488
申请日：2013-03-08
申请人： DTS LLC
发明人： Alan D. Kraemer , James Tracey , Themis Katsianos
IPC分类号： G06F17/00 , H04R3/12 , G10L19/00 , H04S7/00
CPC分类号： H04R3/12 , G10L19/00 , G10L19/167 , G10L19/24 , H04S7/308 , H04S7/40 , H04S2400/03 , H04S2400/11 , H04S2400/15
摘要： Systems and methods for providing object-oriented audio are described. Audio objects can be created by associating sound sources with attributes of those sound sources, such as location, velocity, directivity, and the like. Audio objects can be used in place of or in addition to channels to distribute sound, for example, by streaming the audio objects over a network to a client device. The objects can define their locations in space with associated two or three dimensional coordinates. The objects can be adaptively streamed to the client device based on available network or client device resources. A renderer on the client device can use the attributes of the objects to determine how to render the objects. The renderer can further adapt the playback of the objects based on information about a rendering environment of the client device. Various examples of audio object creation techniques are also described.
摘要翻译：描述用于提供面向对象音频的系统和方法。可以通过将声源与这些声源的属性（诸如位置，速度，方向性等）相关联来创建音频对象。可以使用音频对象来代替或除了用于分发声音的频道之外，例如，通过网络将音频对象流式传输到客户端设备。对象可以使用关联的两维或三维坐标在空间中定义它们的位置。可以根据可用的网络或客户端设备资源将对象自适应地流式传输到客户端设备。客户端设备上的渲染器可以使用对象的属性来确定如何呈现对象。渲染器可以基于关于客户端设备的呈现环境的信息来进一步适应对象的回放。还描述了音频对象创建技术的各种示例。

100. 发明申请

US20150269948A1 Advanced Stereo Coding Based on a Combination of Adaptively Selectable Left/Right or Mid/Side Stereo Coding and of Parametric Stereo Coding 有权
标题翻译：基于自适应选择的左/右或中/侧立体声编码和参数立体声编码的组合的高级立体声编码
公开(公告)号：US20150269948A1
公开(公告)日：2015-09-24
申请号：US14734088
申请日：2015-06-09
申请人： Dolby International AB
发明人： Heiko Purnhagen , Pontus Carlsson , Kristofer Kjoerling
IPC分类号： G10L19/002
CPC分类号： G10L19/002 , G10L19/008 , G10L19/18 , H04S3/02 , H04S5/00 , H04S5/005 , H04S5/02 , H04S2400/01 , H04S2400/03 , H04S2420/03
摘要： The application relates to audio encoder and decoder systems. An embodiment of the encoder system comprises a downmix stage for generating a downmix signal and a residual signal based on a stereo signal. In addition, the encoder system comprises a parameter determining stage for determining parametric stereo parameters such as an inter-channel intensity difference and an inter-channel cross-correlation. Preferably, the parametric stereo parameters are time- and frequency-variant. Moreover, the encoder system comprises a transform stage. The transform to stage generates a pseudo left/right stereo signal by performing a transform based on the downmix signal and the residual signal. The pseudo stereo signal is processed by a perceptual stereo encoder. For stereo encoding, left/right encoding or mid/side encoding is selectable. Preferably, the selection between left/right stereo encoding and mid/side stereo encoding is time- and frequency-variant.
摘要翻译：该应用涉及音频编码器和解码器系统。编码器系统的实施例包括用于产生下混信号的下混级和基于立体声信号的残留信号。此外，编码器系统包括用于确定诸如信道间强度差和信道间互相关的参数立体参数的参数确定级。优选地，参数立体声参数是时间和频率变化的。此外，编码器系统包括变换级。通过基于下混合信号和残留信号进行变换，对阶段的变换生成伪左/右立体声信号。伪立体声信号由感知立体声编码器处理。对于立体声编码，可以选择左/右编码或中/侧编码。优选地，左/右立体声编码和中/立体声编码之间的选择是时间和频率变化的。

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