专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明授权

US09479886B2 Scalable downmix design with feedback for object-based surround codec 有权
标题翻译：基于对象的环绕编解码器的可缩放缩混设计
公开(公告)号：US09479886B2
公开(公告)日：2016-10-25
申请号：US13945806
申请日：2013-07-18
申请人： QUALCOMM Incorporated
发明人： Pei Xiang , Dipanjan Sen
IPC分类号： H04S1/00 , G10L19/008 , H04S3/00 , G10L19/22 , G10L19/24 , H04S7/00
CPC分类号： H04S1/007 , G10L19/008 , G10L19/22 , G10L19/24 , H04S3/008 , H04S7/30 , H04S2400/03 , H04S2400/11 , H04S2400/15 , H04S2420/03 , H04S2420/11
摘要： In general, techniques are described for grouping audio objects into clusters. In some examples, a device for audio signal processing comprises a cluster analysis module configured to group, based on spatial information for each of N audio objects, a plurality of audio objects that includes the N audio objects into L clusters, where L is less than N, wherein the cluster analysis module is configured to receive information from at least one of a transmission channel, a decoder, and a renderer, and wherein a maximum value for L is based on the information received. The device also comprises a downmix module configured to mix the plurality of audio objects into L audio streams, and a metadata downmix module configured to produce, based on the spatial information and the grouping, metadata that indicates spatial information for each of the L audio streams.
摘要翻译：一般来说，描述了将音频对象分组成簇的技术。在一些示例中，用于音频信号处理的设备包括：集群分析模块，被配置为基于N个音频对象中的每一个的空间信息将包括N个音频对象的多个音频对象分组为L个集群，其中L小于 N，其中所述聚类分析模块被配置为从传输信道，解码器和渲染器中的至少一个接收信息，并且其中L的最大值基于所接收的信息。所述设备还包括被配置为将所述多个音频对象混合成L个音频流的下混模块，以及被配置为基于所述空间信息和所述分组来产生指示每个所述L个音频流的空间信息的元数据的元数据下混模块。

82. 发明授权

US09467791B2 System and method for adaptive audio signal generation, coding and rendering 有权
公开(公告)号：US09467791B2
公开(公告)日：2016-10-11
申请号：US14866350
申请日：2015-09-25
申请人： Dolby Laboratories Licensing Corporation
发明人： Charles Q. Robinson , Nicolas R. Tsingos , Christophe Chabanne
IPC分类号： H04S3/00 , H04S7/00 , H04R27/00 , H04R5/02 , H04R5/04 , H04S5/00
CPC分类号： 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
摘要： 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.

83. 发明申请

US20160275958A1 Multi-Channel Audio Decoder, Multi-Channel Audio Encoder, Methods and Computer Program using a Residual-Signal-Based Adjustment of a Contribution of a Decorrelated Signal 审中-公开
标题翻译：多通道音频解码器，多声道音频编码器，方法和计算机程序，使用基于残差信号的调整相关信号的贡献
公开(公告)号：US20160275958A1
公开(公告)日：2016-09-22
申请号：US15167085
申请日：2016-05-27
申请人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
发明人： Sascha DICK , Christian HELMRICH , Johannes HILPERT , Andreas HOELZER
IPC分类号： G10L19/008 , H04S1/00 , G10L19/22
CPC分类号： G10L19/008 , G10L19/20 , G10L19/22 , H04S1/007 , H04S3/02 , H04S2400/03 , H04S2420/07
摘要： A multi-channel audio decoder for providing at least two output audio signals on the basis of an encoded representation is configured to perform a weighted combination of a downmix signal, a decorrelated signal and a residual signal, to obtain one of the output audio signals. The multi-channel audio decoder is configured to determine a weight describing a contribution of the decorrelated signal in the weighted combination in dependence on the residual signal. A multi-channel audio encoder for providing an encoded representation of a multi-channel audio signal is configured to obtain a downmix signal on the basis of the multi-channel audio signal, to provide parameters describing dependencies between the channels of the multi-channel audio signal, and to provide a residual signal. The multi-channel audio encoder is configured to vary an amount of residual signal included into the encoded representation in dependence on the multi-channel audio signal.
摘要翻译：用于基于编码表示提供至少两个输出音频信号的多声道音频解码器被配置为执行降混信号，去相关信号和残留信号的加权组合，以获得输出音频信号之一。多声道音频解码器被配置为根据残差信号确定描述加权组合中去相关信号的贡献的权重。用于提供多声道音频信号的编码表示的多声道音频编码器被配置为基于多声道音频信号来获得下混合信号，以提供描述多声道音频的声道之间的依赖性的参数信号，并提供残留信号。多声道音频编码器被配置为根据多声道音频信号改变包括在编码表示中的残留信号的量。

84. 发明申请

US20160249149A1 METHOD AND APPARATUS FOR PROCESSING AUDIO SIGNALS 有权
公开(公告)号：US20160249149A1
公开(公告)日：2016-08-25
申请号：US15145822
申请日：2016-05-04
申请人： WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.
发明人： Hyunoh OH , Taegyu LEE
IPC分类号： H04S5/00 , G10L19/008
CPC分类号： H04S5/005 , G10L19/008 , G10L19/0204 , G10L25/48 , H03H17/0229 , H03H17/0248 , H03H17/0266 , H03H17/0272 , H03H21/0012 , H04R5/04 , H04S3/00 , H04S3/002 , H04S3/008 , H04S3/02 , H04S7/30 , H04S2400/01 , H04S2400/03 , H04S2420/03 , H04S2420/07 , H04S2420/11
摘要： The present invention relates to a method and an apparatus for processing a signal, which are used for effectively reproducing an audio signal, and more particularly, to a method and an apparatus for processing a signal, which are used for implementing binaural rendering for reproducing multi-channel or multi-object audio signals in stereo with a low calculation amount.To this end, provided are a method for processing an audio signal including: receiving multi-audio signals including multi-channel or multi-object signals; receiving truncated subband filter coefficients for filtering the multi-audio signals, the truncated subband filter coefficients being at least a portion of subband filter coefficients obtained from a binaural room impulse response (BRIR) filter coefficient for binaural filtering of the multi-audio signals, and the lengths of the truncated subband filter coefficients being determined based on filter order information obtained by at least partially using characteristic information extracted from the corresponding subband filter coefficients; and filtering the subband signal by using the truncated subband filter coefficients corresponding to each subband signal of the multi-audio signals and an apparatus for processing an audio signal using the same.

85. 发明申请

US20160247507A1 MULTI-CHANNEL AUDIO DECODER, MULTI-CHANNEL AUDIO ENCODER, METHODS, COMPUTER PROGRAM AND ENCODED AUDIO REPRESENTATION USING A DECORRELATION OF RENDERED AUDIO SIGNALS 审中-公开
标题翻译：多通道音频解码器，多声道音频编码器，方法，计算机程序和编码音频表示，使用渲染音频信号进行装饰
公开(公告)号：US20160247507A1
公开(公告)日：2016-08-25
申请号：US15004548
申请日：2016-01-22
申请人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
发明人： Sascha DISCH , Harald FUCHS , Oliver HELLMUTH , Juergen HERRE , Adrian MURTAZA , Jouni PAULUS , Falko RIDDERBUSCH , Leon TERENTIV
IPC分类号： G10L19/008 , H04S3/02 , H04S3/00
CPC分类号： G10L19/008 , H04S3/008 , H04S3/02 , H04S2400/03 , H04S2400/11 , H04S2420/03
摘要： A multi-channel audio decoder for providing at least two output audio signals on the basis of an encoded representation is configured to render a plurality of decoded audio signals, which are obtained on the basis of the encoded representation, in dependence on one or more rendering parameters, to obtain a plurality of rendered audio signals. The multi-channel audio decoder is configured to derive one or more decorrelated audio signals from the rendered audio signals, and to combine the rendered audio signals, or a scaled version thereof, with the one or more decorrelated audio signals, to obtain the output audio signals. A multi-channel audio encoder provides a decorrelation method parameter to control an audio decoder.
摘要翻译：用于基于经编码的表示来提供至少两个输出音频信号的多声道音频解码器被配置为根据编码的表示来渲染基于一个或多个渲染的多个解码的音频信号参数，以获得多个呈现的音频信号。多声道音频解码器被配置为从所渲染的音频信号中导出一个或多个解相关的音频信号，并且将所渲染的音频信号或其缩放版本与一个或多个去相关的音频信号组合以获得输出音频信号。多声道音频编码器提供解相关方法参数来控制音频解码器。

86. 发明申请

US20160232902A1 BINAURAL RENDERING METHOD AND APPARATUS FOR DECODING MULTI CHANNEL AUDIO 有权
公开(公告)号：US20160232902A1
公开(公告)日：2016-08-11
申请号：US15131623
申请日：2016-04-18
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： G10L19/008 , H04S7/00
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.

87. 发明申请

US20160165375A1 METHOD AND APPARATUS FOR GENERATING SIDE INFORMATION BITSTREAM OF MULTI-OBJECT AUDIO SIGNAL 审中-公开
标题翻译：用于生成多个对象音频信号的侧面信息比特的方法和装置
公开(公告)号：US20160165375A1
公开(公告)日：2016-06-09
申请号：US15041209
申请日：2016-02-11
申请人： Electronics and Telecommunications Research Institute
发明人： Jeong-Il SEO , Seung-Kwon BEACK , Tae-Jin LEE , Yong-Ju LEE , Dae-Young JANG , Kyeongok KANG , Jin-Woo HONG , Jin-Woong KIM , Chieteuk AHN
IPC分类号： H04S7/00 , G10L19/008 , H04S5/00
CPC分类号： H04S7/308 , G10L19/008 , H04S5/00 , H04S2400/03 , H04S2400/11
摘要： Provided is a method and apparatus for generating a side information bitstream of a multi-object audio signal. The apparatus for generating a side information bitstream of a multi-object audio signal includes a spatial cue information input unit configured to receive spatial cue information generated in an encoder of the multi-object audio signal, a preset information input unit configured to receive preset information for the multi-object audio signal, and a side information bitstream generator configured to generate the side information bitstream based on the spatial cue information and the preset information. The side information bitstream includes a header region and a frame region, and the preset information is included in the frame region.
摘要翻译：提供了一种用于生成多对象音频信号的侧信息比特流的方法和装置。用于生成多对象音频信号的侧信息比特流的装置包括：空间提示信息输入单元，被配置为接收在多对象音频信号的编码器中生成的空间提示信息;预设信息输入单元，被配置为接收预设信息以及侧信息比特流发生器，被配置为基于空间提示信息和预设信息生成侧信息比特流。侧信息比特流包括报头区域和帧区域，并且预设信息被包括在帧区域中。

88. 发明申请

US20160142847A1 APPARATUS AND METHOD FOR REALIZING A SAOC DOWNMIX OF 3D AUDIO CONTENT 有权
标题翻译：用于实现3D音频内容的下降的装置和方法
公开(公告)号：US20160142847A1
公开(公告)日：2016-05-19
申请号：US15004629
申请日：2016-01-22
申请人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
发明人： Sascha DISCH , Harald FUCHS , Oliver HELLMUTH , Juergen HERRE , Adrian MURTAZA , Jouni PAULUS , Falko RIDDERBUSCH , Leon TERENTIV
IPC分类号： H04S3/02 , H04S7/00
CPC分类号： H04S3/02 , G10L19/008 , H04S3/00 , H04S3/006 , H04S3/008 , H04S7/305 , H04S2400/01 , H04S2400/03 , H04S2400/11 , H04S2400/13 , H04S2420/03
摘要： An apparatus for generating one or more audio output channels is provided. The apparatus includes a parameter processor for calculating output channel mixing information and a downmix processor for generating the one or more audio output channels. The downmix processor is configured to receive an audio transport signal including one or more audio transport channels, wherein two or more audio object signals are mixed within the audio transport signal, and wherein the number of the one or more audio transport channels is smaller than the number of the two or more audio object signals. The audio transport signal depends on a first mixing rule and on a second mixing rule. The first mixing rule indicates how to mix the two or more audio object signals to obtain a plurality of premixed channels. Moreover, the second mixing rule indicates how to mix the plurality of premixed channels.
摘要翻译：提供一种用于产生一个或多个音频输出通道的装置。该装置包括用于计算输出通道混合信息的参数处理器和用于生成一个或多个音频输出通道的下混处理器。下混合处理器被配置为接收包括一个或多个音频传输信道的音频传输信号，其中在音频传输信号内混合两个或更多个音频对象信号，并且其中一个或多个音频传输信道的数量小于两个或更多个音频对象信号的数量。音频传输信号取决于第一混合规则和第二混合规则。第一混合规则指示如何混合两个或多个音频对象信号以获得多个预混频道。此外，第二混合规则指示如何混合多个预混频道。

89. 发明申请

US20160142845A1 Multi-Channel Audio Decoder, Multi-Channel Audio Encoder, Methods and Computer Program using a Residual-Signal-Based Adjustment of a Contribution of a Decorrelated Signal 审中-公开
公开(公告)号：US20160142845A1
公开(公告)日：2016-05-19
申请号：US15004571
申请日：2016-01-22
申请人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
发明人： Sascha DICK , Christian HELMRICH , Johannes HILPERT , Andreas HOELZER
IPC分类号： H04S3/02 , G10L19/008
CPC分类号： G10L19/008 , G10L19/20 , G10L19/22 , H04S1/007 , H04S3/02 , H04S2400/03 , H04S2420/07
摘要： A multi-channel audio decoder for providing at least two output audio signals on the basis of an encoded representation is configured to perform a weighted combination of a downmix signal, a decorrelated signal and a residual signal, to obtain one of the output audio signals. The multi-channel audio decoder is configured to determine a weight describing a contribution of the decorrelated signal in the weighted combination in dependence on the residual signal. A multi-channel audio encoder for providing an encoded representation of a multi-channel audio signal is configured to obtain a downmix signal on the basis of the multi-channel audio signal, to provide parameters describing dependencies between the channels of the multi-channel audio signal, and to provide a residual signal. The multi-channel audio encoder is configured to vary an amount of residual signal included into the encoded representation in dependence on the multi-channel audio signal.

90. 发明授权

US09344825B2 At least one of intelligibility or loudness of an audio program 有权
标题翻译：至少一个音频节目的清晰度或响度
公开(公告)号：US09344825B2
公开(公告)日：2016-05-17
申请号：US14167479
申请日：2014-01-29
申请人： The Telos Alliance
发明人： Timothy J. Carroll
IPC分类号： H04R5/02 , H04S3/00 , H04S3/02 , H04R29/00
CPC分类号： H04S3/006 , H04S3/02 , H04S2400/01 , H04S2400/03 , H04S2400/13
摘要： A system for improving intelligibility or loudness of an audio program includes an encoder that receives signals of the audio program including at least one of left/front and right/front or left and right signals that include some anchor components of the audio program and to downmix the received signals to obtain left downmix and right downmix signals. The system includes a decoder that upmixes the left downmix and right downmix signals to obtain a center upmix signal that includes a majority of the anchor components including at least some anchor components that were included in the left/front and right/front signals or the left and right signals. The system also includes a system output that provides the center upmix signal to process at least one of the signals of the audio program based on the center upmix signal to improve intelligibility or loudness of the audio program.
摘要翻译：一种用于提高音频节目的清晰度或响度的系统，包括编码器，该编码器接收音频节目的信号，该音频节目包括包括音频节目的一些主要分量的左/前，右/前或左，右信号中的至少一个，接收信号获得左下混合和右下混合信号。该系统包括解码器，其将左下混合和右下混合信号混合以获得中心上混合信号，其包括大部分锚分量，其包括左/前和右/前信号或左侧信号中包括的至少一些锚分量和正确的信号。该系统还包括系统输出，其提供中心上混合信号以基于中心上混信号处理音频节目的至少一个信号，以提高音频节目的可懂度或响度。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式