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1. 发明申请

US20190172472A1 Methods, Apparatus and Systems for Determining Reconstructed Audio Signal 审中-公开
公开(公告)号：US20190172472A1
公开(公告)日：2019-06-06
申请号：US16268448
申请日：2019-02-05
申请人： Dolby Laboratories Licensing Corporation
发明人： Michael M. Truman , Mark S. Vinton
IPC分类号： G10L19/02 , G10L21/0388 , G10L19/16 , G10L19/26 , G10L19/002 , G10L21/00 , G10L19/06 , G10L19/028 , G10L19/00 , G10L19/03 , G10L19/012 , G10L21/038
CPC分类号： G10L19/0208 , G10L19/0017 , G10L19/002 , G10L19/012 , G10L19/02 , G10L19/0204 , G10L19/0212 , G10L19/028 , G10L19/03 , G10L19/06 , G10L19/16 , G10L19/167 , G10L19/173 , G10L19/26 , G10L19/265 , G10L21/00 , G10L21/038 , G10L21/0388
摘要： According to an aspect of the present invention, a method for reconstructing an audio signal having a baseband portion and a highband portion is disclosed. The method includes obtaining a decoded baseband audio signal by decoding an encoded audio signal and obtaining a plurality of subband signals by filtering the decoded baseband audio signal. The method further includes generating a high-frequency reconstructed signal by copying a number of consecutive subband signals of the plurality of subband signals and obtaining an envelope adjusted high-frequency signal. The method further includes generating a noise component based on a noise parameter. Finally, the method includes adjusting a phase of the high-frequency reconstructed signal and obtaining a time-domain reconstructed audio signal by combining the decoded baseband audio signal and the combined high-frequency signal to obtain a time-domain reconstructed audio signal.

2. 发明申请

US20180268843A1 PARAMETER DETERMINATION DEVICE, METHOD, PROGRAM AND RECORDING MEDIUM 审中-公开
公开(公告)号：US20180268843A1
公开(公告)日：2018-09-20
申请号：US15544452
申请日：2016-01-27
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION , The University of Tokyo
发明人： Takehiro MORIYA , Yutaka KAMAMOTO , Noboru HARADA , Hirokazu KAMEOKA , Ryosuke SUGIURA
IPC分类号： G10L25/18 , G10L25/21 , G10L19/038 , G10L19/07 , G10L19/16
CPC分类号： G10L25/18 , G10H2250/225 , G10H2250/575 , G10L19/02 , G10L19/038 , G10L19/07 , G10L19/16 , G10L25/03 , G10L25/21 , H03M7/30
摘要： A parameter determination device includes: a spectral envelope estimating portion performing estimation of a spectral envelope using a parameter η0 specified in a predetermined method, regarding the η0-th power of absolute values of a frequency domain sample sequence corresponding to a time-series signal as a power spectrum on the assumption that the parameter η0 and a parameter η are positive numbers; a whitened spectral sequence generating portion obtaining a whitened spectral sequence which is a sequence obtained by dividing the frequency domain sample sequence by the spectral envelope; and a parameter acquiring portion determining such a parameter η that generalized Gaussian distribution with the parameter η as a shape parameter approximates a histogram of the whitened spectral sequence.

3. 发明授权

US10056086B2 Spatial audio resource management utilizing minimum resource working sets 有权
公开(公告)号：US10056086B2
公开(公告)日：2018-08-21
申请号：US15615173
申请日：2017-06-06
申请人： MICROSOFT TECHNOLOGY LICENSING, LLC
发明人： Robert Norman Heitkamp , Ziyad Ibrahim , Paul J. Radek , Steven Marcel Elza Wilssens , Philip Andrew Edry
IPC分类号： G06F17/00 , G10L19/008 , H04S7/00 , H04R5/00
CPC分类号： G10L19/008 , G10L19/16 , H04S7/30 , H04S7/302 , H04S7/305 , H04S2400/11 , H04S2420/01 , H04S2420/11
摘要： The present disclosure enables applications of a computing system to coordinate object-based audio resources by the use of a minimum resource working set. The minimum resource working set encourages an application to be fair in its requirements since specifying a large number will most likely result in the application receiving zero resources, or losing all of its resources to another application. A working set, which can include a minimum and a maximum working set, also provides a useful metric for the spatial audio resource manager to use when balancing demand. In addition, a minimum working set provides a performance metric for resource balancing since it exposes what the minimum functional requirement is from the maxim requested resource claim.

4. 发明授权

US09947328B2 Methods, apparatus and systems for determining reconstructed audio signal 有权
公开(公告)号：US09947328B2
公开(公告)日：2018-04-17
申请号：US15702451
申请日：2017-09-12
申请人： Dolby Laboratories Licensing Corporation
发明人： Michael M. Truman , Mark S. Vinton
IPC分类号： G10L21/038 , G10L21/0388 , G10L19/02 , G10L19/028 , G10L19/26
CPC分类号： G10L19/0208 , G10L19/0017 , G10L19/002 , G10L19/012 , G10L19/02 , G10L19/0204 , G10L19/0212 , G10L19/028 , G10L19/03 , G10L19/06 , G10L19/16 , G10L19/167 , G10L19/173 , G10L19/26 , G10L19/265 , G10L21/00 , G10L21/038 , G10L21/0388
摘要： According to an aspect of the present invention, a method for reconstructing an audio signal having a baseband portion and a highband portion is disclosed. The method includes obtaining a decoded baseband audio signal by decoding an encoded audio signal and obtaining a plurality of subband signals by filtering the decoded baseband audio signal. The method further includes generating a high-frequency reconstructed signal by copying a number of consecutive subband signals of the plurality of subband signals and obtaining an envelope adjusted high-frequency signal. The method further includes generating a noise component based on a noise parameter. Finally, the method includes adjusting a phase of the high-frequency reconstructed signal and obtaining a time-domain reconstructed audio signal by combining the decoded baseband audio signal and the combined high-frequency signal to obtain a time-domain reconstructed audio signal.

5. 发明授权

US09659566B2 Device and method for generating and decoding a side channel signal transmitted with a main channel signal 有权
公开(公告)号：US09659566B2
公开(公告)日：2017-05-23
申请号：US14722220
申请日：2015-05-27
申请人： Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
发明人： Gerald Schuller , Stefan Wabnik , Bernhard Grill , Alexander Zink
IPC分类号： G10L19/008 , H04L27/26 , G08C19/34 , G10L19/16 , H04L27/34 , H04N21/2343 , H04N21/2383 , H04N21/438 , H04N21/442 , H04N21/63 , H04L29/06 , H04L5/00 , H04L1/00
CPC分类号： G10L19/008 , G08C19/34 , G10L19/16 , H04L5/0007 , H04L27/2647 , H04L27/3488 , H04L65/607 , H04L2001/0098 , H04N21/23439 , H04N21/2383 , H04N21/4382 , H04N21/44209 , H04N21/631
摘要： For generating a signal to be transmitted original information is encoded into a main channel and a side channel, wherein the side channel is more robust against channel influences than the main channel. On the receiver side, when the receive quality is above a threshold, which is necessitated to execute a successful decoding of the main channel, the main channel is reproduced. If the receive quality falls below this threshold, however, the side channel is reproduced which may have less bits than the main channel and which is a correspondingly lower quality representation of the original information than the main channel.

6. 发明申请

US20160372127A1 RANDOM NOISE SEED VALUE GENERATION 审中-公开
标题翻译：随机噪声种子价值生成
公开(公告)号：US20160372127A1
公开(公告)日：2016-12-22
申请号：US14836689
申请日：2015-08-26
申请人： QUALCOMM Incorporated
发明人： Venkata Subrahmanyam Chandra Sekhar Chebiyyam , Vivek Rajendran , Venkatraman S. Atti , Subasingha Shaminda Subasingha
IPC分类号： G10L19/12 , G10L19/028 , G10L19/083 , G10L19/002 , G10L19/018 , G06F3/16
CPC分类号： G10L19/12 , G06F3/165 , G06F7/588 , G10L19/002 , G10L19/018 , G10L19/028 , G10L19/083 , G10L19/16
摘要： A method includes selecting, at a device, a first seed generation scheme or a second seed generation scheme based on determining whether audio data satisfies a criterion. The audio data corresponds to a first audio frame of a sequence of frames. The first seed generation scheme includes generating a first seed value based on one or more parameters corresponding to the first audio frame (e.g., the bit-stream indices). The second seed generation scheme includes generating a second seed value based on a seed output value associated with a second audio frame of the sequence of frames. A seed value generated by the selected seed generation scheme is provided to a random noise generator.
摘要翻译：一种方法包括：基于确定音频数据是否满足标准，在设备处选择第一种子生成方案或第二种子生成方案。音频数据对应于帧序列的第一音频帧。第一种子生成方案包括基于与第一音频帧对应的一个或多个参数（例如，比特流索引）来生成第一种子值。第二种子生成方案包括基于与帧序列的第二音频帧相关联的种子输出值来生成第二种子值。由选择的种子生成方案生成的种子值被提供给随机噪声发生器。

7. 发明申请

US20160086617A1 SYSTEM AND METHOD FOR ADDRESSING DISCONTINUOUS TRANSMISSION IN A NETWORK DEVICE 有权
标题翻译：用于解决网络设备中不连续传输的系统和方法
公开(公告)号：US20160086617A1
公开(公告)日：2016-03-24
申请号：US14495421
申请日：2014-09-24
申请人： Nuance Communications, Inc.
发明人： Qian-Yu Tang , Victor Zeyliger , Franck Bonard , Weiying Li
IPC分类号： G10L21/02 , G10L19/028 , G10L21/0208
CPC分类号： H04W52/0209 , G10L19/012 , G10L19/16 , G10L21/0208 , G10L25/48 , G10L2019/0002 , H04W52/0235 , H04W52/44 , H04W76/28 , Y02D70/00 , Y02D70/1224 , Y02D70/142 , Y02D70/144 , Y02D70/164 , Y02D70/23 , Y02D70/25
摘要： Embodiments included herein are directed towards a system and method for addressing discontinuous transmission (DTX) in a network device. Embodiments may include receiving, at a computing device, an audio signal and generating at least one silence descriptor (SID) frame associated with the audio signal. Embodiments may also include generating at least one no data frame associated with the audio signal. Embodiments may also include initiating a speech decoder, voice enhancement, and speech encoder operation for the at least one SID frame during a DTX operation and bypassing the speech decoder, voice enhancement, and speech encoder functions for the at least one no data frame.
摘要翻译：本文包括的实施例涉及用于在网络设备中寻址不连续传输（DTX）的系统和方法。实施例可以包括在计算设备处接收音频信号并且生成与音频信号相关联的至少一个静默描述符（SID）帧。实施例还可以包括生成与音频信号相关联的至少一个无数据帧。实施例还可以包括在DTX操作期间启动用于至少一个SID帧的语音解码器，语音增强和语音编码器操作，并且绕过语音解码器，语音增强和用于至少一个无数据帧的语音编码器功能。

8. 发明申请

US20150025896A1 Enabling Sampling Rate Diversity In A Voice Communication System 有权
标题翻译：在语音通信系统中实现采样率分集
公开(公告)号：US20150025896A1
公开(公告)日：2015-01-22
申请号：US14384350
申请日：2013-03-21
申请人： DOLBY INTERNATIONAL AB , DOLBY LABORATORIES LICENSING
发明人： Heiko Purnhagen , Leif Sehlstrom , Lars Villemoes , Glenn N. Dickins , Mark S. Vinton
IPC分类号： G10L19/03 , G10L19/26 , G10L19/002
CPC分类号： G10L19/03 , G10L19/002 , G10L19/16 , G10L19/26 , H04M3/56 , H04M3/568
摘要： An audio communication endpoint receives a bitstream containing spectral components representing spectral content of an audio signal, wherein the spectral components relate to a first range extending up to a first break frequency, above which any spectral components are unassigned. The endpoint adapts the received bitstream in accordance with a second range extending up to a second break frequency by removing spectral components or adding neutral-valued spectral components relating to a range between the first and second break frequencies. The endpoint then attenuates spectral content in a neighbourhood of the least of the first and second break frequencies for thereby achieving a gradual spectral decay. After this, reconstructing the audio signal is reconstructed by an inverse transform operating on spectral components relating to said second range in the adapted and attenuated received bitstream. At small computational expense, the endpoint may to adapt to different sample rates in received bitstreams.
摘要翻译：音频通信端点接收包含表示音频信号的频谱内容的频谱分量的比特流，其中频谱分量涉及延伸到第一中断频率的第一范围，高于该频率分量的任何频谱分量未被分配。端点通过去除频谱分量或增加与第一和第二断裂频率之间的范围有关的中性值频谱分量，根据延伸到第二中断频率的第二范围来适配所接收的比特流。然后，端点衰减第一和第二断裂频率中最小的邻域中的频谱内容，从而实现逐渐的频谱衰减。之后，通过在适配和衰减的接收比特流中与所述第二范围有关的频谱分量上的逆变换来重构音频信号。在较小的计算费用下，端点可以适应接收到的比特流中的不同采样率。

9. 发明申请

US20150025879A1 AUDIO AND SPEECH CODING DEVICE, AUDIO AND SPEECH DECODING DEVICE, METHOD FOR CODING AUDIO AND SPEECH, AND METHOD FOR DECODING AUDIO AND SPEECH 有权
标题翻译：音频和语音编码设备，音频和语音解码设备，用于编码音频和语音的方法以及用于解码音频和语音的方法
公开(公告)号：US20150025879A1
公开(公告)日：2015-01-22
申请号：US14376501
申请日：2013-02-01
申请人： Panasonic Intellectual Property Corporation of America
发明人： Zongxian Liu , Srikanth Nagisetty , Masahiro Oshikiri
IPC分类号： G10L19/038 , G10L19/16
CPC分类号： G10L19/038 , G10L19/12 , G10L19/16
摘要： This invention introduces audio/speech encoding apparatus audio/speech decoding apparatus, audio/speech encoding method and audio/speech decoding method to efficiently encode the quantization parameters of split multi-rate lattice vector quantization. In this invention, the position of the sub-vector whose codebook indication consumes the most bits is firstly located, and then the value of the codebook is estimated based on the total number of bits available and the bits usage information for other sub-vectors. The difference value is calculated between the actual value and estimated value. Finally, instead of transmitting the codebook indication which consumes the most bits, the position of the sub-vector whose codebook indication consumes the most bits and the difference value between the actual value and the estimated value are transmitted. By applying of the invented method, bits can be saved by the codebook indications.
摘要翻译：本发明引入音频/语音编码装置音频/语音解码装置，音频/语音编码方法和音频/语音解码方法，以有效地编码分割多速率格子矢量量化的量化参数。在本发明中，首先定位其码本指示消耗最多位的子向量的位置，然后基于可用的总位数和其他子向量的比特使用信息来估计码本的值。差值在实际值和估计值之间计算。最后，传送码本指示消耗最多位的子向量的位置和实际值与估计值之间的差值，而不是发送消耗最多位的码本指示。通过应用本发明的方法，可以通过码本指示来保存位。

10. 发明授权

US08613038B2 Methods and apparatus for decoding multiple independent audio streams using a single audio decoder 有权
标题翻译：使用单个音频解码器解码多个独立音频流的方法和装置
公开(公告)号：US08613038B2
公开(公告)日：2013-12-17
申请号：US12910432
申请日：2010-10-22
申请人： Rahul Bansal , Philippe Monnier , Shiv Kumar Singh , Kausik Maiti , Nitin Jain
发明人： Rahul Bansal , Philippe Monnier , Shiv Kumar Singh , Kausik Maiti , Nitin Jain
IPC分类号： H04N7/16
CPC分类号： H04N21/4341 , G10L19/16 , H04N21/4344 , H04N21/8106
摘要： An embodiment of the present invention discloses a system and method for decoding multiple independent encoded audio streams using a single decoder. The system includes one or more parsers, a preprocessor, an audio decoder, and a renderer. The parser extracts individual audio frames from each input audio stream. The preprocessor combines the outputs of all parsers into a single audio frame stream and enables sharing of the audio decoder among multiple independent encoded audio streams. The audio decoder decodes the single audio frame stream and provides a single decoded audio stream. And the renderer renders the individual reconstructed audio streams from the single decoded audio stream.
摘要翻译：本发明的实施例公开了一种使用单个解码器解码多个独立编码音频流的系统和方法。系统包括一个或多个解析器，预处理器，音频解码器和渲染器。解析器从每个输入音频流中提取单个音频帧。预处理器将所有解析器的输出组合成单个音频帧流，并使多个独立编码音频流之间的音频解码器共享。音频解码器解码单个音频帧流，并提供单个解码的音频流。并且渲染器从单个解码的音频流渲染单独的重构音频流。

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