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81. 发明公开

EP3530001A1 A SOUND PROCESSING NODE OF AN ARRANGEMENT OF SOUND PROCESSING NODES 审中-公开
公开(公告)号：EP3530001A1
公开(公告)日：2019-08-28
申请号：EP16801429.8
申请日：2016-11-22
申请人： Huawei Technologies Co., Ltd.
发明人： JIN, Wenyu , SHERSON, Thomas , KLEIJN, Willem, Bastiaan , HEUSDENS, Richard , LANG, Yue
IPC分类号： H04R3/00

82. 发明授权

EP3132617B1 AN AUDIO SIGNAL PROCESSING APPARATUS 有权
公开(公告)号：EP3132617B1
公开(公告)日：2018-10-17
申请号：EP14766668.9
申请日：2014-08-13
申请人： Huawei Technologies Co. Ltd.
发明人： FALLER, Christof , FAVROT, Alexis , LANG, Yue , GROSCHE, Peter
IPC分类号： H04S3/00
CPC分类号： H04S7/306 , H04R5/033 , H04R2205/022 , H04S1/002 , H04S3/008 , H04S2400/11 , H04S2420/01
摘要： The disclosure is based on the finding that acoustic near-field transfer functions indicating acoustic near-field propagation channels between loudspeakers and ears of a listener can be employed to pre-process audio signals. Therefore, acoustic near-field distortions of the audio signals can be mitigated. The pre-processed audio signals can be presented to the listener using a wearable frame, wherein the wearable frame comprises the loudspeakers for audio presentation. The disclosure can allow for a high quality rendering of audio signals as well as a high listening comfort for the listener. The disclosure can provide the following advantages. By means of a loudspeaker selection as a function of a spatial audio source direction, cues related to the listener's ears can be generated, making the approach more robust with regard to front/back confusion. The approach can further be extended to an arbitrary number of loudspeaker pairs.

83. 发明公开

EP3249648A1 METHOD AND APPARATUS FOR SWITCHING SPEECH OR AUDIO SIGNALS 有权
标题翻译：用于切换语音或音频信号的方法和设备
公开(公告)号：EP3249648A1
公开(公告)日：2017-11-29
申请号：EP17151713.9
申请日：2011-04-28
申请人： Huawei Technologies Co., Ltd.
发明人： LIU, Zexin , MIAO, Lei , HU, Chen , WU, Wenhai , LANG, Yue , ZHANG, Qing
IPC分类号： G10L21/038 , G10L19/24
CPC分类号： G10L19/24 , G10L21/038
摘要： A method and an apparatus for switching speech or audio signals are disclosed. The method for switching speech or audio signals includes: when a switching of a speech or audio occurs, weighting a first high frequency band signal of a current frame of speech or audio signal and a second high frequency band signal of the previous M frame of speech or audio signals to obtain a processed first high frequency band signal (101); and synthesizing the processed first high frequency band signal and a first low frequency band signal of the current frame of speech or audio signal into a wide frequency band signal (102).
摘要翻译：公开了一种用于切换语音或音频信号的方法和设备。用于切换语音或音频信号的方法包括：当发生语音或音频的切换时，对当前的语音或音频信号帧的第一高频带信号和前M帧的第二高频带信号进行加权或音频信号以获得经处理的第一高频带信号（101）; 以及将处理的第一高频带信号和当前帧语音或音频信号的第一低频带信号合成为宽频带信号（102）。

84. 发明公开

EP3132617A1 AN AUDIO SIGNAL PROCESSING APPARATUS 有权
标题翻译： TONSIGNALVERARBEITUNGSVORRICHTUNG
公开(公告)号：EP3132617A1
公开(公告)日：2017-02-22
申请号：EP14766668.9
申请日：2014-08-13
申请人： Huawei Technologies Co. Ltd.
发明人： FALLER, Christof , FAVROT, Alexis , LANG, Yue , GROSCHE, Peter
IPC分类号： H04S3/00
CPC分类号： H04S7/306 , H04S1/002 , H04S3/008 , H04S2420/01
摘要： The disclosure is based on the finding that acoustic near-field transfer functions indicating acoustic near-field propagation channels between loudspeakers and ears of a listener can be employed to pre-process audio signals. Therefore, acoustic near-field distortions of the audio signals can be mitigated. The pre-processed audio signals can be presented to the listener using a wearable frame, wherein the wearable frame comprises the loudspeakers for audio presentation. The disclosure can allow for a high quality rendering of audio signals as well as a high listening comfort for the listener. The disclosure can provide the following advantages. By means of a loudspeaker selection as a function of a spatial audio source direction, cues related to the listener's ears can be generated, making the approach more robust with regard to front/back confusion. The approach can further be extended to an arbitrary number of loudspeaker pairs.
摘要翻译：本公开是基于以下发现：可以采用指示收听者的扬声器和耳朵之间的声学近场传播信道的声学近场传递函数来预处理音频信号。因此，可以减轻音频信号的声学近场失真。预处理的音频信号可以使用可穿戴的框架呈现给收听者，其中，可穿戴的框架包括用于音频呈现的扬声器。该公开可以允许音频信号的高质量呈现以及对听众的高听觉舒适度。本公开可以提供以下优点。通过扬声器选择作为空间音频源方向的函数，可以产生与听众的耳朵相关的线索，使得该方法在前/后混淆方面更加坚固。该方法可以进一步扩展到任意数量的扬声器对。

85. 发明公开

EP3100353A1 AN AUDIO COMPRESSION SYSTEM FOR COMPRESSING AN AUDIO SIGNAL 有权
标题翻译：压缩的声音信号的音频压缩系统
公开(公告)号：EP3100353A1
公开(公告)日：2016-12-07
申请号：EP14702793.2
申请日：2014-01-30
申请人： Huawei Technologies Co., Ltd.
发明人： GROSCHE, Peter , LANG, Yue , ZHANG, Qing
IPC分类号： H03G7/00
CPC分类号： H03G3/002 , G10L19/26 , H03G7/002 , H03G7/007 , H03G11/008 , H04S7/307
摘要： The invention relates to an audio compression system (100) for compressing an input audio signal, the audio compression system (100) comprising a digital filter (101) for filtering the input audio signal, the digital filter (101) comprising a frequency transfer function having a magnitude over frequency, the magnitude being formed by an equal loudness curve of a human ear to obtain a filtered audio signal, and a compressor (103) being configured to compress the input audio signal upon the basis of the filtered audio signal to obtain a compressed audio signal.

86. 发明公开

EP3081013A1 APPARATUS AND METHOD FOR ENHANCING A SPATIAL PERCEPTION OF AN AUDIO SIGNAL 无效
标题翻译：装置和方法用于增强音频信号的空间知觉
公开(公告)号：EP3081013A1
公开(公告)日：2016-10-19
申请号：EP13802371.8
申请日：2013-12-09
申请人： Huawei Technologies Co., Ltd.
发明人： GROSCHE, Peter , LANG, Yue
IPC分类号： H04S1/00 , H04R5/02
CPC分类号： H04S1/007 , H04R5/02 , H04R5/04 , H04R2203/12 , H04R2499/11 , H04R2499/15 , H04S1/002 , H04S2420/01 , H04S2420/07
摘要： An apparatus and a method for enhancing a spatial perception of an audio signal are provided creating increased interaural-level differences. To obtain this effect, two dipoles are used: one for producing a left audio signal and one for producing a right audio signal.

87. 发明公开

EP3046339A1 VIRTUAL STEREO SYNTHESIS METHOD AND DEVICE 审中-公开
标题翻译：虚拟立体综合方法和装置
公开(公告)号：EP3046339A1
公开(公告)日：2016-07-20
申请号：EP14856259.8
申请日：2014-04-24
申请人： Huawei Technologies Co., Ltd.
发明人： LANG, Yue , DU, Zhengzhong
IPC分类号： H04S3/00
CPC分类号： H04S7/307 , H04R5/033 , H04R5/04 , H04S1/002 , H04S1/005 , H04S3/004 , H04S7/306 , H04S2400/11 , H04S2400/15 , H04S2420/01
摘要： This application discloses a virtual stereo synthesis method and apparatus, where the method includes: acquiring at least one sound input signal on one side and at least one sound input signal on the other side; separately performing ratio processing on a preset head related transfer function HRTF left-ear component and a preset head related transfer function HRTF right-ear component of each sound input signal on the other side, to obtain a filtering function of each sound input signal on the other side; separately performing convolution filtering on each sound input signal on the other side and the filtering function of the sound input signal on the other side, to obtain the filtered signal on the other side; and synthesizing all of the sound input signals on the one side and all of the filtered signals on the other side into a virtual stereo signal. In the foregoing manner, this application can alleviate a coloration effect, and reduce calculation complexity.
摘要翻译：该申请公开了一种虚拟立体声合成方法和装置，该方法包括：获取一侧的至少一个声音输入信号和另一侧的至少一个声音输入信号; 分别对另一侧的每个声音输入信号的预设头部相关传递函数HRTF左耳分量和预设头部相关传递函数HRTF右耳分量进行比率处理，得到每个声音输入信号对另一边; 分别对另一侧的每个声音输入信号和另一侧的声音输入信号的滤波功能进行卷积滤波，得到另一侧的滤波信号; 并且将一侧上的所有声音输入信号和另一侧上的所有滤波后的信号合成为虚拟立体声信号。以上述方式，本申请可以减轻着色效应，并降低计算复杂度。

88. 发明授权

EP2609589B1 DEVICE AND METHOD FOR POSTPROCESSING DECODED MULTI-CHANNEL AUDIO SIGNAL OR DECODED STEREO SIGNAL 有权
标题翻译：用于后处理解码后的多声道音频信号或解码后的立体声信号的装置和方法
公开(公告)号：EP2609589B1
公开(公告)日：2016-05-04
申请号：EP10857660.4
申请日：2010-09-28
申请人： Huawei Technologies Co., Ltd.
发明人： VIRETTE, David , LANG, Yue , MIAO, Lei , WU, Wenhai
IPC分类号： G10L19/008 , G10L21/0364
CPC分类号： G10L19/008 , G10L19/025 , G10L21/0364
摘要： According to the invention, a device (101, 101′) for postprocessing at least one channel signal of a plurality of channel signals of a multi-channel signal is described, the at least one channel signal being generated from a decoded downmix signal by a low-bit-rate audio coding/decoding system, the device comprising: a receiver (103; 103′) for receiving the at least one channel signal generated from the decoded downmix signal, a time envelope of the decoded downmix signal and a classification indication indicating a transient type of the at least one channel signal, wherein the classification indication is associated to the at least one channel signal, and a postprocessor (105; 105′) for postprocessing the at least one channel signal based on the time envelope of the decoded downmix signal weighted by a respective weighting factor and in dependence on the classification indication.

89. 发明公开

EP2995000A1 A DIGITAL COMPRESSOR FOR COMPRESSING AN AUDIO SIGNAL 有权
标题翻译： DIGITALER VERDICHTER ZUR KOMPRIMIERUNG EINES AUDIOSIGNALS
公开(公告)号：EP2995000A1
公开(公告)日：2016-03-16
申请号：EP14702018.4
申请日：2014-01-30
申请人： Huawei Technologies Co., Ltd.
发明人： GROSCHE, Peter , LANG, Yue , ZHANG, Qing
IPC分类号： H03G7/00
CPC分类号： H03G7/002 , H03G7/007 , H03G9/18
摘要： A digital compressor for compressing an input audio signal is presented. The digital compressor comprises a compression gain control for providing a compression gain parameter, and a compression parameter determiner for determining a compression ratio from the compression gain parameter. The compression parameter determiner may be configured to weight the compression gain parameter by a predetermined weight factor to obtain the compression ratio. The digital compressor further comprises an auxiliary signal generator for manipulating the input audio signal in dependence of the compression ratio to obtain a first auxiliary signal, and a combiner unit for combining the first auxiliary signal with the compression gain parameter to obtain a second auxiliary signal, and for combining the input audio signal with the second auxiliary signal to obtain the compressed audio signal.
摘要翻译：提出了一种用于压缩输入音频信号的数字压缩器。数字压缩器包括用于提供压缩增益参数的压缩增益控制和用于根据压缩增益参数确定压缩比的压缩参数确定器。压缩参数确定器可以被配置为将压缩增益参数加权预定的权重因子以获得压缩比。数字压缩器还包括辅助信号发生器，用于根据压缩比来操纵输入音频信号以获得第一辅助信号;以及组合器单元，用于将第一辅助信号与压缩增益参数组合以获得第二辅助信号，并且用于将输入音频信号与第二辅助信号组合以获得压缩音频信号。

90. 发明公开

EP2954697A1 METHOD FOR RENDERING A STEREO SIGNAL 有权
标题翻译：方法用于表示立体声信号
公开(公告)号：EP2954697A1
公开(公告)日：2015-12-16
申请号：EP13705944.0
申请日：2013-02-06
申请人： Huawei Technologies Co., Ltd.
发明人： FALLER, Christof , VIRETTE, David , LANG, Yue
IPC分类号： H04R5/04 , H04S7/00 , H04S1/00
CPC分类号： H04R5/04 , H04R2205/021 , H04R2499/11 , H04S1/007 , H04S7/303 , H04S2420/03
摘要： The invention relates to a method (500) for rendering a stereo audio signal (402) over a first loudspeaker (401) and a second loudspeaker (403) with respect to a desired direction (201), the stereo audio signal (402) comprising a first audio signal component (L) and a second audio signal component (R), the method (500) comprising: providing (501) a first rendering signal (408) based on a combination of the first audio signal component (L) and a first difference signal (diff_L) obtained based on a difference (diff) between the first audio signal component (L) and the second audio signal component (R) to the first loudspeaker (401), and providing a second rendering signal (410) based on a combination of the second audio signal component (R) and a second difference signal (diff_R) obtained based on the difference (diff) between the first audio signal component (L) and the second audio signal component (R) to the second loudspeaker (403), such that both difference signals (diff_L, diff_R) are different with respect to sign and one difference signal is delayed by a delay (τ) compared to the other difference signal to define a dipole signal, wherein the delay (τ) is adapted according to the desired direction (201).

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