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1. 发明申请

WO2014121828A1 METHOD FOR RENDERING A STEREO SIGNAL 审中-公开
标题翻译：渲染立体声信号的方法
公开(公告)号：WO2014121828A1
公开(公告)日：2014-08-14
申请号：PCT/EP2013/052327
申请日：2013-02-06
申请人： HUAWEI TECHNOLOGIES CO., LTD. , FALLER, Christof , VIRETTE, David , LANG, Yue
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).
摘要翻译：本发明涉及一种用于相对于期望方向（201）在第一扬声器（401）和第二扬声器（403）上呈现立体声音频信号（402）的方法（500），所述立体声音频信号（402）包括第一音频信号分量（L）和第二音频信号分量（R），所述方法（500）包括：基于所述第一音频信号分量（L）和基于第一音频信号分量（L）和与第一扬声器（401）的第二音频信号分量（R）之间的差（diff）获得的第一差分信号（diff_L），并提供第二渲染信号（410）基于第二音频信号分量（R）和基于第一音频信号分量（L）和第二音频信号分量（R）之间的差（diff））获得的第二音频信号分量（R）和第二差分信号（diff_R）的组合，扬声器（403），使得两个差分信号（diff_L，diff_R）相对于符号是不同的，并且一个差分信号与另一个差分信号相比延迟（τ），以限定偶极子信号，其中延迟（τ）根据期望的方向（201）适应。

2. 发明申请

WO2014106543A1 METHOD FOR DETERMINING A STEREO SIGNAL 审中-公开
标题翻译：用于确定立体信号的方法
公开(公告)号：WO2014106543A1
公开(公告)日：2014-07-10
申请号：PCT/EP2013/050112
申请日：2013-01-04
申请人： HUAWEI TECHNOLOGIES CO., LTD. , FALLER, Christof , VIRETTE, David , LANG, Yue
发明人： FALLER, Christof , VIRETTE, David , LANG, Yue
IPC分类号： G10L19/008
CPC分类号： H04S7/301 , H04R1/406 , H04R3/005 , H04R5/027 , H04R5/04 , H04S1/002 , H04S2400/09 , H04S2400/15
摘要： The invention relates to a method (200) for determining an output stereo signal (Y1, Y2) comprising: determining (201 ) a first differential signal (x1) based on a difference of a first input audio channel signal (m1) and a filtered version of a second input audio channel signal (m2) and determining a second differential signal (x2) based on a difference of the second input audio channel signal (m2) and a filtered version of the first input audio channel signal (m1); determining (203) a first power spectrum (P1) based on the first differential signal (x1) and determining a second power spectrum (P2) based on the second differential signal (x2); determining (205) a first weighting function (W1) and a second weighting function (W2) as a function of the first power spectrum (P1) and the second power spectrum (P2); wherein the first weighting function (W1) and the second weighting function (W2) comprise an exponential function; and filtering (207) a first signal, which represents a first combination of the first input audio channel signal (m1) and the second input audio channel signal (m2), with the first weighting function (W1) to obtain a first output audio channel signal (Y1) of the output stereo signal (Y1, Y2), and filtering a second signal, which represents a second combination of the first input audio channel signal (m1) and the second input audio channel signal (m2), with the second weighting function (W2) to obtain a second output audio channel signal (Y2) of the output stereo signal (Y1; Y2).
摘要翻译：本发明涉及一种用于确定输出立体声信号（Y1，Y2）的方法（200），包括：基于第一输入音频信道信号（m1）和被滤波的信号（m1）的差确定（201）第一差分信号基于所述第二输入音频信道信号（m2）的差和所述第一输入音频信道信号（m1）的滤波版本，确定第二差分信号（x2）的第二输入音频信道信号（m2）的版本; 基于所述第一差分信号（x1）确定（203）第一功率谱（P1），并且基于所述第二差分信号（x2）确定第二功率谱（P2）; 根据第一功率谱（P1）和第二功率谱（P2）确定（205）第一加权函数（W1）和第二加权函数（W2）; 其中所述第一加权函数（W1）和所述第二加权函数（W2）包括指数函数; 并且将表示第一输入音频通道信号（m1）和第二输入音频通道信号（m2）的第一组合）的第一信号与第一加权函数（W1）进行滤波（207），以获得第一输出音频通道输出立体声信号（Y1，Y2）的信号（Y1），并且对表示第一输入音频通道信号（m1）和第二输入音频通道信号（m2）的第二组合的第二信号进行滤波，第二信号加权函数（W2），以获得输出立体声信号（Y1; Y2）的第二输出音频通道信号（Y2）。

3. 发明申请

WO2013040738A1 A METHOD AND AN APPARATUS FOR GENERATING AN ACOUSTIC SIGNAL WITH AN ENHANCED SPATIAL EFFECT 审中-公开
标题翻译：用于产生具有增强空间效应的声学信号的方法和装置
公开(公告)号：WO2013040738A1
公开(公告)日：2013-03-28
申请号：PCT/CN2011/079806
申请日：2011-09-19
申请人： HUAWEI TECHNOLOGIES CO., LTD. , FALLER, Christof , VIRETTE, David , LANG, Yue
发明人： FALLER, Christof , VIRETTE, David , LANG, Yue
IPC分类号： H04S1/00
CPC分类号： H04S7/307 , H04R2499/11 , H04S1/002 , H04S5/005
摘要： An apparatus and a method for generating an acoustic signal with an enhanced spatial effect, said apparatus comprising a signal filter bank adapted to filter a difference audio signal with a filter characteristic to limit a bandwidth of said difference audio signal, wherein said bandwidth limited difference audio signal is applied to at least one pair of loudspeakers for dipole sound emission.
摘要翻译：一种用于产生具有增强的空间效果的声信号的装置和方法，所述装置包括信号滤波器组，适于滤波具有滤波器特性的差分音频信号以限制所述差分音频信号的带宽，其中所述带宽限制差音频信号被施加到用于偶极声发射的至少一对扬声器。

4. 发明申请

WO2017097324A1 AN AUDIO SIGNAL PROCESSING APPARATUS AND METHOD 审中-公开
标题翻译：一种音频信号处理装置和方法
公开(公告)号：WO2017097324A1
公开(公告)日：2017-06-15
申请号：PCT/EP2015/078805
申请日：2015-12-07
申请人： HUAWEI TECHNOLOGIES CO., LTD. , PANG, Liyun , GROSCHE, Peter
发明人： PANG, Liyun , GROSCHE, Peter , FALLER, Christof , FAVROT, Alexis
IPC分类号： H04S1/00
CPC分类号： H04S1/005 , H04S2400/11 , H04S2420/01
摘要： The invention relates to an audio signal processing apparatus (100) for processing an input audio (101) signal to be transmitted to a listener in such a way that the listener perceives the input audio signal (101) to come from a virtual target position defined by an azimuth angle and an elevation angle relative to the listener, the audio signal processing apparatus (100) comprising a memory (103) configured to store a set of pairs of predefined left ear and right ear transfer functions, which are predefined for a plurality of reference positions relative to the listener, wherein the plurality of reference positions lie in a a two-dimensional plane, a determiner(105) configured to determine a pair of left ear and right ear transfer functions on the basis of the set of predefined pairs of predefined left ear and right ear transfer functions for the azimuth angle and the elevation angle of the virtual target position and an adjustment filter (107) configured to filter the input audio signal (101) on the basis of the determined pair of left ear and right ear transfer functions and an adjustment function (109) configured to adjust a delay between the left ear transfer function and the right ear transfer function of the determined pair of left ear and right ear transfer functions and a frequency dependence of the left ear transfer function and the right ear transfer function of the determined pair of left ear and right ear transfer functions as a function of the azimuth angle and/or the elevation angle of the virtual target position in order to obtain a left ear output audio signal (111a) and a right ear output audio signal (111b).
摘要翻译：本发明涉及一种音频信号处理设备（100），用于以收听者感知输入音频信号（101）的方式处理要发送给收听者的输入音频（101）信号，来自由相对于收听者的方位角和仰角限定的虚拟目标位置，所述音频信号处理设备（100）包括存储器（103），所述存储器被配置为存储一组预定义的左耳和右耳转移函数，其针对相对于收听者的多个参考位置而预定义，其中所述多个参考位置位于二维平面中;确定器（105），其被配置为确定在所述多个参考位置上的一对左耳和右耳传递函数基于虚拟目标位置的方位角和仰角的一组预定义的左耳和右耳传递函数的预定义对，以及调整过滤器（107），其被配置为过滤基于确定的一对左耳和右耳传递函数来放置音频信号（101）;以及调整函数（109），其被配置为调整确定的一对左耳和右耳传递函数的左耳传递函数和右耳传递函数之间的延迟左耳和右耳传递函数以及所确定的一对左耳和右耳传递函数的左耳传递函数和右耳传递函数的频率相关性作为方位角和/或仰角传递函数的方位角和/或仰角的函数虚拟目标位置以便获得左耳输出音频信号（111a）和右耳输出音频信号（111b）。

5. 发明申请

WO2016012037A1 AN APPARATUS AND A METHOD FOR MANIPULATING AN INPUT AUDIO SIGNAL 审中-公开
标题翻译：一种用于操纵输入音频信号的装置和方法
公开(公告)号：WO2016012037A1
公开(公告)日：2016-01-28
申请号：PCT/EP2014/065728
申请日：2014-07-22
申请人： HUAWEI TECHNOLOGIES CO., LTD. , FALLER, Christof , FAVROT, Alexis , PANG, Liyun , GROSCHE, Peter , YUE, Lang
发明人： FALLER, Christof , FAVROT, Alexis , PANG, Liyun , GROSCHE, Peter , YUE, Lang
IPC分类号： H04S7/00
CPC分类号： H04S7/302 , H04R3/04 , H04S3/008 , H04S2400/01 , H04S2400/11 , H04S2420/01 , H04S2420/03
摘要： The invention relates to an apparatus (100) 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 (100) comprising an exciter (101) adapted to manipulate the input audio signal to obtain an output audio signal, and a controller (103) adapted to control parameters of the exciter (101) for manipulating the input audio signal upon the basis of the certain distance.
摘要翻译：本发明涉及一种用于在空间音频场景内操纵与空间音频源相关联的输入音频信号的装置（100），其中空间音频源与空间音频场景内的收听者有一定的距离，该设备（100）包括适于操纵所述输入音频信号以获得输出音频信号的激励器（101），以及适于基于所述一定距离来控制所述激励器（101）的参数来操纵所述输入音频信号的控制器（103）。

6. 发明申请

WO2017202460A1 AUDIO SIGNAL PROCESSING STAGE, AUDIO SIGNAL PROCESSING APPARATUS AND AUDIO SIGNAL PROCESSING METHOD 审中-公开
标题翻译：音频信号处理级，音频信号处理设备和音频信号处理方法
公开(公告)号：WO2017202460A1
公开(公告)日：2017-11-30
申请号：PCT/EP2016/061782
申请日：2016-05-25
申请人： HUAWEI TECHNOLOGIES CO., LTD. , FALLER, Christof , FAVROT, Alexis , GROSCHE, Peter , POLLOW, Martin , GEIGER, Jürgen
发明人： FALLER, Christof , FAVROT, Alexis , GROSCHE, Peter , POLLOW, Martin , GEIGER, Jürgen
IPC分类号： H04R3/04 , H04R3/00
摘要： The invention relates to an audio signal processing stage (600) for processing an input audio signal (101) into an output audio signal (103). The audio signal processing stage (600) comprises: a filter bank (105a) defining two or more frequency bands, the filter bank separating the input audio signal (101) into two or more input audio signal components (X(k,b)); a set of two or more band branches (105e) which provide two or more output audio signal components (Y(k,b)). The set of two or more band branches (105e) comprises one or more compressor branches, each comprising a compressor (105b) which compresses the respective input audio signal component (X(k,b)) to provide the respective output audio signal component (Y(k,b)); an inverse filter bank (105d) which generates a summed audio signal (y(t)) by summing the two or more output audio signal components (Y(k,b)); a residual audio signal generating unit (613) which generates a residual audio signal (v(t)) which is a difference between the input audio signal (101) and the summed audio signal(y(t)); a virtual bass unit (107) which generates a virtual bass signal (w(t)) that comprises one or more harmonics of the residual audio signal (v(t)); and a summation unit (109) which generates the output audio signal (103) by summing the summed audio signal (y(t)) and the virtual bass signal (w(t)). A variant (700) of the audio signal processing stage (600), and corresponding audio signal processing methods are also described.
摘要翻译：本发明涉及用于将输入音频信号（101）处理为输出音频信号（103）的音频信号处理级（600）。音频信号处理级（600）包括：定义两个或更多个频带的滤波器组（105a），滤波器组将输入音频信号（101）分离为两个或更多个输入音频信号分量（X（k，b）） ; 提供两个或更多个输出音频信号分量（Y（k，b））的一组两个或更多个频带分支（105e）。两个或更多个频带分支（105e）的集合包括一个或更多个压缩器分支，每个压缩器分支包括压缩相应输入音频信号分量（X（k，b））的压缩器（105b），以提供相应的输出音频信号分量 Y（K，b））; 逆滤波器组（105d），其通过对两个或更多个输出音频信号分量（Y（k，b））求和来生成求和音频信号（y（t））; 产生作为输入音频信号（101）和相加后的音频信号（y（t））之间的差值的残余音频信号（v（t））的残余音频信号产生单元（613）产生包括残余音频信号（v（t））的一个或多个谐波的虚拟低音信号（w（t））的虚拟低音单元（107）和求和单元（109），其通过对相加后的音频信号（y（t））和虚拟低音信号（w（t））求和来生成输出音频信号（103）。还描述了音频信号处理级（600）的变体（700）以及相应的音频信号处理方法。

7. 发明申请

WO2016023581A1 AN AUDIO SIGNAL PROCESSING APPARATUS 审中-公开
标题翻译：音频信号处理设备
公开(公告)号：WO2016023581A1
公开(公告)日：2016-02-18
申请号：PCT/EP2014/067288
申请日：2014-08-13
申请人： HUAWEI TECHNOLOGIES CO.,LTD , FALLER, Christof , FAVROT, Alexis , YUE, Lang , GROSCHE, Peter
发明人： FALLER, Christof , FAVROT, Alexis , YUE, Lang , GROSCHE, Peter
IPC分类号： H04S3/00
CPC分类号： H04S7/306 , H04S1/002 , H04S3/008 , H04S2420/01
摘要： The invention relates to an audio signal processing apparatus (100) for pre-processing a first input audio signal (E L ) to obtain a first output audio signal (X L ) and for pre-processing a second input audio signal (E R ) to obtain a second output audio signal (X R ), the first output audio signal (X L ) to be transmitted over a first acoustic near-field propagation channel between a first loudspeaker and a left ear of a listener, the second output audio signal (X R ) to be transmitted over a second acoustic near-field propagation channel between a second loudspeaker and a right ear of the listener, the audio signal processing apparatus (100) comprising a provider (101 ) being configured to provide a first acoustic near-field transfer function (G LL ) of the first acoustic near-field propagation channel between the first loudspeaker and the left ear of the listener, and to provide a second acoustic near-field transfer function (G RR ) of the second acoustic near-field propagation channel between the second loudspeaker and the right ear of the listener, and a filter (103) being configured to filter the first input audio signal (E L ) upon the basis of an inverse of the first acoustic near- field transfer function (G LL ) to obtain the first output audio signal (X L ), the first output audio signal (X L ) being independent of the second input audio signal (E R ), and to filter the second input audio signal (E R ) upon the basis of an inverse of the second acoustic near-field transfer function (G RR ) to obtain the second output audio signal (XR), the second output audio signal (X R ) being independent of the first input audio signal (E L ).
摘要翻译：本发明涉及一种用于预处理第一输入音频信号（EL）以获得第一输出音频信号（XL）并用于预处理第二输入音频信号（ER）的音频信号处理设备（100），以获得第二输出音频信号（XR），要在第一扬声器和收听者的左耳之间的第一声近场传播信道上传输的第一输出音频信号（XL），第二输出音频信号（XR）所述音频信号处理装置（100）包括提供商（101），所述提供商（101）被配置为提供第一声学近场传递函数（GLL，第一声场近场传递函数））在收听者的第一扬声器和左耳之间的第一声近场传播信道，并且提供第二声近场传播信道的第二声近场传递函数（GRR）第二扬声器和收听者的右耳，以及滤波器（103），被配置为基于第一声学近场传递函数（GLL）的倒数来对第一输入音频信号（EL）进行滤波，以获得第一输出音频信号（XL），所述第一输出音频信号（XL）独立于所述第二输入音频信号（ER），并且基于所述第二声学近似信号（ER）的反相来滤波所述第二输入音频信号场传递函数（GRR）以获得第二输出音频信号（XR），第二输出音频信号（XR）独立于第一输入音频信号（EL）。

8. 发明申请

WO2014063755A1 PORTABLE ELECTRONIC DEVICE WITH AUDIO RENDERING MEANS AND AUDIO RENDERING METHOD 审中-公开
标题翻译：具有音频渲染方式的便携式电子设备和音频渲染方法
公开(公告)号：WO2014063755A1
公开(公告)日：2014-05-01
申请号：PCT/EP2012/071306
申请日：2012-10-26
申请人： HUAWEI TECHNOLOGIES CO., LTD. , FALLER, Christof , FAVROT, Alexis , VIRETTE, David , LANG, Yue
发明人： FALLER, Christof , FAVROT, Alexis , VIRETTE, David , LANG, Yue
IPC分类号： H04R3/04 , H04M1/60 , H03G5/02 , H04M9/08
CPC分类号： H04R3/04 , H03G5/165 , H04M9/082 , H04R5/02 , H04R2499/11
摘要： The application relates to a portable electronic device (200), comprising: at least one loudspeaker (217); and audio rendering means (201) configured for adapting an audio signal (215) before submitting the audio signal (215) to the at least one loudspeaker (217), wherein the adapting is according to a function of a positioning of the portable electronic device (200) relative to a listener using the portable electronic device (200).
摘要翻译：本申请涉及一种便携式电子设备（200），包括：至少一个扬声器（217）; 以及音频渲染装置（201），其被配置用于在将所述音频信号（215）提交给所述至少一个扬声器（217）之前适配音频信号（215），其中所述适配是根据所述便携式电子设备（200）相对于收听者使用便携式电子设备（200）。

9. 发明申请

WO2016169604A1 AN AUDIO SIGNAL PROCESSING APPARATUS FOR PROCESSING AN INPUT EARPIECE AUDIO SIGNAL UPON THE BASIS OF A MICROPHONE AUDIO SIGNAL 审中-公开
标题翻译：用于处理基于麦克风音频信号的输入音频信号的音频信号处理装置
公开(公告)号：WO2016169604A1
公开(公告)日：2016-10-27
申请号：PCT/EP2015/058809
申请日：2015-04-23
申请人： HUAWEI TECHNOLOGIES CO., LTD. , FALLER, Christof , FAVROT, Alexis , GROSCHE, Peter , LANG, Yue
发明人： FALLER, Christof , FAVROT, Alexis , GROSCHE, Peter , LANG, Yue
IPC分类号： G10L21/034
CPC分类号： G10L21/034 , G10L21/0205 , G10L25/78 , G10L25/84
摘要： The invention relates to an audio signal processing apparatus (100) for processing an input earpiece audio signal (x) upon the basis of a microphone audio signal (y), the audio signal processing apparatus (100) comprising a voice activity detector (101) being configured to determine a voice activity indicator signal (x vad ) upon the basis of the input earpiece audio signal (x), a noise magnitude determiner (103) being configured to determine a microphone noise magnitude indicator signal (wy) upon the basis of the microphone audio signal (y), a gain factor determiner (105) being configured to determine a gain factor signal (Δ G ) upon the basis of the voice activity indicator signal (x vad ) and the microphone noise magnitude indicator signal (w y ), and a weighter (107) being configured to weight the input earpiece audio signal (x) by the gain factor signal (Δ G ) to obtain an output earpiece audio signal.
摘要翻译：本发明涉及一种用于根据麦克风音频信号（y）处理输入听筒音频信号（x）的音频信号处理设备（100），音频信号处理设备（100）包括语音活动检测器（101）被配置为基于输入听筒音频信号（x）来确定语音活动指示符信号（xvad），噪声量值确定器（103）被配置为基于所述语音活动指示符信号麦克风音频信号（y），增益因子确定器（105）被配置为基于语音活动指示符信号（xvad）和麦克风噪声幅度指示符信号（wy）来确定增益因子信号（ΔG），以及重心（107）被配置为通过增益因子信号（ΔG）对输入听筒音频信号（x）进行加权，以获得输出听筒音频信号。

10. 发明申请

WO2016096021A1 SURROUND SOUND RECORDING FOR MOBILE DEVICES 审中-公开
标题翻译：移动设备的环绕声录音
公开(公告)号：WO2016096021A1
公开(公告)日：2016-06-23
申请号：PCT/EP2014/078558
申请日：2014-12-18
申请人： HUAWEI TECHNOLOGIES CO., LTD. , FALLER, Christof , FAVROT, Alexis , GROSCHE, Peter , LANG, Yue
发明人： FALLER, Christof , FAVROT, Alexis , GROSCHE, Peter , LANG, Yue
IPC分类号： H04R3/00 , H04R1/32 , 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： The present invention is directed to a microphone arrangement (100) and a method (900) using the microphone arrangement (100) for recording surround sound in a mobile device (200). The microphone arrangement (100) comprises a first and a second microphone (102) and (103) arranged at a first distance (d 1 ) to each other and configured to obtain a stereo signal, and comprises a third microphone (103) configured to obtain a steering signal (DOA, 1-DOA) together with at least one of the first and second microphone (102) and (103) and/or with a fourth microphone (104). The microphone arrangement (100) also comprises a processor (105) configured to separate the stereo signal into a front stereo signal (FL, FR) and a back stereo signal (BL, BR) based on the steering signal (DOA, 1-DOA).
摘要翻译：本发明涉及一种在移动设备（200）中使用麦克风装置（100）来记录环绕声的麦克风装置（100）和方法（900）。麦克风装置（100）包括第一和第二麦克风（102）和（103），它们以彼此之间的第一距离（d1）布置并被配置为获得立体声信号，并且包括被配置为获得的第三麦克风（103）与第一和第二麦克风（102）和（103）中的至少一个和/或与第四麦克风（104）一起的转向信号（DOA，1-DOA）。麦克风装置（100）还包括处理器（105），其被配置为基于转向信号（DOA，1-DOA）将立体声信号分离成前立体声信号（FL，FR）和后立体声信号（BL，BR））。

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