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11. 发明申请

US20170289686A1 Surround Sound Recording for Mobile Devices 审中-公开
公开(公告)号：US20170289686A1
公开(公告)日：2017-10-05
申请号：US15626962
申请日：2017-06-19
申请人： Huawei Technologies Co., Ltd.
发明人： Christof Faller , Alexis Favrot , Peter Grosche , Yue Lang
IPC分类号： H04R5/027 , H04S3/00 , H04R5/04 , H04R3/00 , H04R1/40
CPC分类号： H04R5/027 , H04R1/326 , H04R1/406 , H04R3/005 , H04R5/04 , H04R2430/21 , H04R2499/11 , H04S3/00 , H04S2400/15
摘要： A microphone arrangement and a method using the microphone arrangement for recording surround sound in a mobile device, where the microphone arrangement comprises a first and a second microphone and arranged at a first distance to each other and configured to obtain a stereo signal, and comprises a third microphone configured to obtain a steering signal together with at least one of the first and second microphone or with a fourth microphone. The microphone arrangement also comprises a processor configured to separate the stereo signal into a front stereo signal and a back stereo signal based on the steering signal.

12. 发明申请

US20160247518A1 APPARATUS AND METHOD FOR IMPROVING A PERCEPTION OF A SOUND SIGNAL 审中-公开
标题翻译：用于改善声音信号感觉的装置和方法
公开(公告)号：US20160247518A1
公开(公告)日：2016-08-25
申请号：US15147549
申请日：2016-05-05
申请人： Huawei Technologies Co., Ltd.
发明人： Bjoern Schuller , Felix Weninger , Christian Kirst , Peter Grosche
IPC分类号： G10L21/0272 , G10L21/0216 , G10L25/84 , H04S5/00 , H04S7/00
CPC分类号： G10L21/0272 , G10L21/0216 , G10L25/84 , H04S5/00 , H04S7/30 , H04S2420/01
摘要： The present invention relates to an apparatus for improving a perception of a sound signal, the apparatus comprising: a separation unit configured to separate the sound signal into at least one speech component and at least one noise component; and a spatial rendering unit configured to generate an auditory impression of the at least one speech component at a first virtual position with respect to a user, when output via a transducer unit, and of the at least one noise component at a second virtual position with respect to the user, when output via the transducer unit.
摘要翻译：本发明涉及一种用于改善声音信号感知的装置，该装置包括：分离单元，被配置为将声音信号分离成至少一个语音分量和至少一个噪声分量; 以及空间绘制单元，被配置为当经由换能器单元输出时，在相对于用户的第一虚拟位置处生成所述至少一个语音分量的听觉印象，以及在第二虚拟位置处产生所述至少一个噪声分量的听觉印象，当通过换能器单元输出时，它们与用户相关。

13. 发明授权

US10433056B2 Audio signal processing stage, audio signal processing apparatus, audio signal processing method, and computer-readable storage medium 有权
公开(公告)号：US10433056B2
公开(公告)日：2019-10-01
申请号：US16197696
申请日：2018-11-21
申请人： Huawei Technologies Co., Ltd.
发明人： Christof Faller , Alexis Favrot , Peter Grosche , Martin Pollow , Jürgen Geiger
IPC分类号： H04R3/04 , H04R3/00
摘要： An input audio signal is separated into input audio signal components (X(k,b)). A set of two or more band branches provides output audio signal components (Y(k,b)). The set of band branches comprises one or more compressor branches Each compressor branch compresses a respective input audio signal component (X(k,b)) into a respective output audio signal component (Y(k,b)). A summed audio signal (y(t)) is generated by summing the output audio signal components (Y(k,b)). A residual audio signal (v(t)) is a difference between the input audio signal and the summed audio signal(y(t)) A virtual bass signal (w(t)) comprises one or more harmonics of the residual audio signal (v(t)). An output audio signal is generated by summing the summed audio signal (y(t)) and the virtual bass signal (w(t)).

14. 发明授权

US10375503B2 Apparatus and method for driving an array of loudspeakers with drive signals 有权
公开(公告)号：US10375503B2
公开(公告)日：2019-08-06
申请号：US15786278
申请日：2017-10-17
申请人： Huawei Technologies Co., Ltd.
发明人： Michael Buerger , Heinrich Löllmann , Walter Kellermann , Peter Grosche , Yue Lang
IPC分类号： H04R3/12 , H04S7/00
摘要： A wave field synthesis apparatus for driving an array of loudspeakers with drive signals, the apparatus includes a sound field synthesizer for generating sound field drive signals for causing the array of loudspeakers to generate one or more sound fields at one or more audio zones, a binaural renderer for generating binaural drive signals for causing the array of loud-speakers to generate specified sound pressures at at least two positions, wherein the at least two positions are determined based on a detected position and/or orientation of a listener, and a decision unit for deciding whether to generate the drive signals using the sound field synthesizer or using the binaural renderer.

15. 发明授权

US10199032B2 Adaptive reverberation cancellation system 有权
公开(公告)号：US10199032B2
公开(公告)日：2019-02-05
申请号：US15952864
申请日：2018-04-13
申请人： Huawei Technologies Co., Ltd.
发明人： Wenyu Jin , Peter Grosche
IPC分类号： G10K11/178 , G10L21/0232 , G10L21/0208
摘要： A signal processor for determining a plurality of drive signals for driving a plurality of loudspeakers to cancel a reverberation effect in a listening area, wherein the signal processor is configured to determine from one or more measured audio signals a plurality of measured physical coefficients in a basis of physical sound functions, such that a sum of the physical sound functions, weighted with the plurality of measured physical coefficients approximates the one or more measured audio signals, wherein at least half of the plurality of measured physical coefficients are zero, determine a residual error between the plurality of measured physical coefficients and a plurality of desired physical coefficients, estimate a transfer function describing a transformation from the plurality of desired physical coefficients to the plurality of measured physical coefficients, based on the determined residual error, and update the plurality of drive signals based on the estimated transfer function.

16. 发明授权

US10178491B2 Apparatus and a method for manipulating an input audio signal 有权
公开(公告)号：US10178491B2
公开(公告)日：2019-01-08
申请号：US15411859
申请日：2017-01-20
申请人： Huawei Technologies Co., Ltd.
发明人： Christof Faller , Alexis Favrot , Liyun Pang , Peter Grosche , Yue Lang
IPC分类号： H04R3/04 , H04S7/00 , H04S3/00
摘要： The disclosure relates to an apparatus for manipulating an input audio signal associated to a spatial audio source within a spatial audio scenario, wherein the spatial audio source has a certain distance to a listener within the spatial audio scenario. The apparatus comprises an exciter adapted to manipulate the input audio signal to obtain an output audio signal, and a controller adapted to control parameters of the exciter for manipulating the input audio signal based on the certain distance.

17. 发明申请

US20180262832A1 Sound Signal Processing Apparatus and Method for Enhancing a Sound Signal 审中-公开
公开(公告)号：US20180262832A1
公开(公告)日：2018-09-13
申请号：US15978688
申请日：2018-05-14
申请人： Huawei Technologies Co., Ltd.
发明人： Peter Grosche , Karim Helwani , Christian Schörkhuber , Franz Zotter , Robert Höldrich , Matthias Frank
IPC分类号： H04R3/00 , H04R1/40 , G10L25/21 , H04R3/04 , H03G3/20
CPC分类号： H04R3/005 , G10L25/21 , H03G3/20 , H03G3/3005 , H04R1/406 , H04R3/04 , H04R2430/01
摘要： A sound signal processing apparatus including a plurality of microphones, where each microphone is configured to receive the sound signal from the target source, a processor configured to estimate a first power measure on the basis of the sound signal from the target source received by a first microphone of the microphones and a second power measure on the basis of the sound signal from the target source received by at least a second microphone of the microphones, which is located more distant from the target source than the first microphone, and the processor is further configured to determine a gain factor on the basis of a ratio between the second power measure and the first power measure, and an amplifier configured to apply the gain factor to the sound signal from the target source received by the first microphone.

18. 发明授权

US09985597B2 Digital compressor for compressing an audio signal 有权
公开(公告)号：US09985597B2
公开(公告)日：2018-05-29
申请号：US15082081
申请日：2016-03-28
申请人： Huawei Technologies Co., Ltd.
发明人： Peter Grosche , Yue Lang , Qing Zhang
IPC分类号： H03G9/00 , H03G7/00 , H03G9/18
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.

19. 发明申请

US20170078821A1 Audio Signal Processing Apparatus 有权
标题翻译：音频信号处理装置
公开(公告)号：US20170078821A1
公开(公告)日：2017-03-16
申请号：US15362275
申请日：2016-11-28
申请人： Huawei Technologies Co., Ltd.
发明人： Christof Faller , Alexis Favrot , Yue Lang , Peter Grosche
IPC分类号： H04S7/00 , H04S1/00
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。本公开可以允许音频信号的高质量渲染以及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功能，可以产生与听众耳朵相关的线索，使得该方法在前/后混淆方面更加健壮。该方法可以进一步扩展到任意数量的扬声器对。

20. 发明申请

US20160344356A1 Audio Compression System for Compressing an Audio Signal 审中-公开
标题翻译：用于压缩音频信号的音频压缩系统
公开(公告)号：US20160344356A1
公开(公告)日：2016-11-24
申请号：US15225553
申请日：2016-08-01
申请人： Huawei Technologies Co., Ltd.
发明人： Peter Grosche , Yue Lang , Qing Zhang
IPC分类号： H03G3/00 , H04S7/00 , H03G11/00 , G10L19/26
CPC分类号： H03G3/002 , G10L19/26 , H03G7/002 , H03G7/007 , H03G11/008 , H04S7/307
摘要： An audio compression system for compressing an input audio signal, and the audio compression system comprises a digital filter for filtering the input audio signal, where the digital filter comprises a frequency transfer function having a magnitude over frequency, where the magnitude is formed by an equal loudness curve of a human ear to obtain a filtered audio signal, and a compressor which is configured to compress the input audio signal upon the basis of the filtered audio signal to obtain a compressed audio signal.
摘要翻译：一种用于压缩输入音频信号的音频压缩系统，并且音频压缩系统包括用于对输入音频信号进行滤波的数字滤波器，其中数字滤波器包括频率幅度超过频率的频率传递函数，其中幅度由等于获得滤波后的音频信号的人耳的响度曲线;以及压缩器，被配置为基于经滤波的音频信号来压缩输入音频信号，以获得压缩音频信号。

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