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1. 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）。

2. 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。

3. 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））。

4. 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。

5. 发明申请

WO2013029225A1 PARAMETRIC MULTICHANNEL ENCODER AND DECODER 审中-公开
标题翻译：参数多通道编码器和解码器
公开(公告)号：WO2013029225A1
公开(公告)日：2013-03-07
申请号：PCT/CN2011/079051
申请日：2011-08-29
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： G10L19/00
CPC分类号： G10L19/008
摘要： The present invention relates to a parametric multichannel encoder 501 for encoding a multichannel signal comprising a first channel signal and a second channel signal, the parametric multichannel encoder 501 comprising an estimator 505 for estimating an interaural time difference between the first channel signal and the second channel signal to obtain an estimate of the interaural time difference, the estimator 505 being further configured to determine a fuzziness indicator, the fuzziness indicator indicating a grade of non-reliability of the estimate of the interaural time difference; a downmix signal generator 507 for generating a downmix signal from the first channel signal and the second channel signal; and a multiplexer 511 for multiplexing the downmix signal, the interaural time difference, and the fuzziness parameter to obtain an encoded signal.
摘要翻译：本发明涉及用于对包括第一信道信号和第二信道信号的多信道信号进行编码的参数化多信道编码器501，参数多信道编码器501包括用于估计第一信道信号和第二信道之间的耳间时间差的估计器505 信号以获得昼间时间差的估计，估计器505还被配置为确定模糊指示符，模糊指示符指示玄度时间差的估计的不可靠度等级; 降混信号发生器507，用于从第一通道信号和第二通道信号产生下混合信号; 以及用于多路复用下混合信号，耳间时间差和模糊参数以获得编码信号的多路复用器511。

6. 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。

7. 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）。

8. 发明申请

WO2012040898A1 DEVICE AND METHOD FOR POSTPROCESSING DECODED MULTI-CHANNEL AUDIO SIGNAL OR DECODED STEREO SIGNAL 审中-公开
标题翻译：解码多通道音频信号或解码立体信号的装置和方法
公开(公告)号：WO2012040898A1
公开(公告)日：2012-04-05
申请号：PCT/CN2010/077388
申请日：2010-09-28
申请人： HUAWEI TECHNOLOGIES CO., LTD. , LANG, Yue , VIRETTE, David , MIAO, Lei , WU, Wenhai
发明人： LANG, Yue , VIRETTE, David , MIAO, Lei , WU, Wenhai
IPC分类号： G10L19/00 , H01S1/00 , H04S5/00 , H04S3/00
CPC分类号： G10L19/008 , G10L21/0364
摘要： A device (101';201') for postprocessing at least one channel signal of a plurality of channel signals of a multi-channel signal is provided, in which the at least one channel signal is generated from a decoded downmix signal by a low-bit-rate audio coding/decoding system. The device (101';201') comprises: a receiver (103') for receiving the at least one channel signal generated from the decoded downmix signal, a time envelope of the decoded downmix signal, an interchannel time difference between the channel signal and the downmix signal, and a classification indication indicating a transient type of the downmix signal; and a postprocessor (105',213',215') for postprocessing the at least one channel signal based on the time envelope of the decoded downmix signal which is weighted by a respective weighting factor and is in dependence on the classification indication and the interchannel time difference.
摘要翻译：提供了一种用于对多信道信号的多个信道信号的至少一个信道信号进行后处理的装置（101'; 201'），其中通过低通道信号从解码的下混信号产生至少一个信道信号，比特率音频编码/解码系统。设备（101'; 201'）包括：接收器（103'），用于接收从解码的下混合信号产生的至少一个信道信号，解码的下混信号的时间包络，信道信号和降混信号，以及指示下混合信号的瞬时类型的分类指示; 以及后处理器（105'，213'，215'），用于根据解码的下混合信号的时间包络对相应的加权因子进行加权的后处理所述至少一个信道信号，并且依赖于分类指示和通道时间差异。

9. 发明申请

WO2014012582A1 PORTABLE ELECTRONIC DEVICE WITH DIRECTIONAL MICROPHONES FOR STEREO RECORDING 审中-公开
标题翻译：便携式电子设备，具有立体声记录的方向麦克风
公开(公告)号：WO2014012582A1
公开(公告)日：2014-01-23
申请号：PCT/EP2012/064085
申请日：2012-07-18
申请人： HUAWEI TECHNOLOGIES CO., LTD. , ZHANG, Deming , VIRETTE, David , LANG, Yue
发明人： ZHANG, Deming , VIRETTE, David , LANG, Yue
IPC分类号： H04M1/03 , H04M1/02 , H04R1/40 , H04R5/027
CPC分类号： H04R1/08 , H04M1/0202 , H04M1/035 , H04R5/027 , H04R2499/11
摘要： The invention relates to a portable electronic device (100), comprising: a housing (101) comprising at least one hole (103); and at least two directional microphones (105a, 105b) mounted in the housing (101) and placed coincidentally for stereo sound pickup, each one of the microphones (105a, 105b) defining a main sound axis and each one of the two directional microphones (105a, 105b) defining a direct sound direction and a opposite sound direction which describe opposite directions of the main sound axis, wherein the at least one hole (103) is a common hole (103a) shared between the at least two directional microphones (105a, 105b) such that the main sound axis of the at least two directional microphones (105a, 105b) are pointing through the common hole (103a) in different directions.
摘要翻译：本发明涉及一种便携式电子设备（100），包括：壳体（101），包括至少一个孔（103）; 以及至少两个安装在所述壳体（101）中的方向性麦克风（105a，105b）并且重合放置用于立体声拾音，所述麦克风（105a，105b）中的每一个限定主声轴和所述两个定向麦克风 105a，105b）限定描述主声轴的相反方向的直接声音方向和相反的声音方向，其中至少一个孔（103）是在至少两个定向麦克风（105a）之间共享的公共孔（103a），105b），使得至少两个定向麦克风（105a，105b）的主声轴在不同方向上指向公共孔（103a）。

10. 发明申请

WO2013149673A1 METHOD FOR INTER-CHANNEL DIFFERENCE ESTIMATION AND SPATIAL AUDIO CODING DEVICE 审中-公开
标题翻译：用于信道间差分估计和空间音频编码装置的方法
公开(公告)号：WO2013149673A1
公开(公告)日：2013-10-10
申请号：PCT/EP2012/056342
申请日：2012-04-05
申请人： HUAWEI TECHNOLOGIES CO., LTD. , LANG, Yue , VIRETTE, David , XU, Jianfeng
发明人： LANG, Yue , VIRETTE, David , XU, Jianfeng
IPC分类号： G10L19/008 , H04S3/00
CPC分类号： G10L19/008 , H04S3/008 , H04S2400/01 , H04S2420/01 , H04S2420/03
摘要： Methods and devices for a low complex inter-channel difference estimation are provided. A method for the estimation of inter-channel differences, ICD, comprises applying a transformation from a time domain to a frequency domain to a plurality of audio channel signals, calculating a plurality of ICD values for the ICDs between at least one of the plurality of audio channel signals and a reference audio channel signal over a predetermined frequency range, each ICD value being calculated over a portion of the predetermined frequency range, calculating, for each of the plurality of ICD values, a weighted ICD value by multiplying each of the plurality of ICD values with a corresponding frequency-dependent weighting factor, and calculating an ICD range value for the predetermined frequency range by adding the plurality of weighted ICD values.
摘要翻译：提供了用于低复杂信道间差分估计的方法和装置。用于估计信道间差异ICD的方法包括将从时域到频域的变换应用于多个音频信道信号，在多个信道中的至少一个之间计算ICD的多个ICD值音频通道信号和参考音频通道信号，每个ICD值在预定频率范围的一部分上被计算，对于多个ICD值中的每一个，通过将多个ICD值中的每一个乘以加权ICD值具有对应的频率相关加权因子的ICD值，并且通过添加多个加权ICD值来计算预定频率范围的ICD范围值。

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