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    AN AUDIO COMPRESSION SYSTEM FOR COMPRESSING AN AUDIO SIGNAL
    1.
    发明申请
    AN AUDIO COMPRESSION SYSTEM FOR COMPRESSING AN AUDIO SIGNAL 审中-公开
    用于压缩音频信号的音频压缩系统

    公开(公告)号：WO2015113601A1

    公开(公告)日：2015-08-06

    申请号：PCT/EP2014/051794

    申请日：2014-01-30

    Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  GROSCHE, Peter ,  LANG, Yue ,  ZHANG, Qing

    Inventor： GROSCHE, Peter ,  LANG, Yue ,  ZHANG, Qing

    IPC: H03G7/00

    CPC classification number: H03G3/002 ,  G10L19/26 ,  H03G7/002 ,  H03G7/007 ,  H03G11/008 ,  H04S7/307

    Abstract: 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.

    Abstract translation: 本发明涉及一种用于压缩输入音频信号的音频压缩系统（100），该音频压缩系统（100）包括用于对输入音频信号进行滤波的数字滤波器（101），数字滤波器（101）包括频率传递函数 具有超过频率的幅度，幅度由人耳的相等的响度曲线形成以获得滤波的音频信号，以及压缩器（103），其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。

    AUDIO SIGNAL PROCESSING DEVICE AND METHOD FOR REPRODUCING A BINAURAL SIGNAL
    4.
    发明申请
    AUDIO SIGNAL PROCESSING DEVICE AND METHOD FOR REPRODUCING A BINAURAL SIGNAL 审中-公开
    音频信号处理装置和再生信号信号的方法

    公开(公告)号：WO2016074734A1

    公开(公告)日：2016-05-19

    申请号：PCT/EP2014/074536

    申请日：2014-11-13

    Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  HELWANI, Karim ,  GROSCHE, Peter ,  LANG, Yue

    Inventor： HELWANI, Karim ,  GROSCHE, Peter ,  LANG, Yue

    IPC: H04S7/00

    CPC classification number: H04S7/303 ,  G06F3/012 ,  H04R5/02 ,  H04R5/04 ,  H04R2499/11 ,  H04S3/00 ,  H04S3/008 ,  H04S5/005 ,  H04S7/00 ,  H04S7/30 ,  H04S7/305 ,  H04S2400/01 ,  H04S2420/01

    Abstract: An audio signal processing device (10) for generating a plurality of output signals for a plurality of loudspeakers from an input audio signal comprises a driving function determining unit (11) adapted to determined driving functions of a plurality of loudspeakers for generating a virtual left binaural signal source and a virtual right binaural signal source based upon a position and a directivity of the virtual left binaural signal source, a position and a directivity of the virtual right binaural signal source and positions of the plurality of loudspeakers. Moreover, it comprises a filtering unit (12) adapted to filter a left binaural signal and a right binaural signal using the driving functions of the plurality of loudspeakers resulting in the plurality of output signals. The left binaural signal and the right binaural signal constitute the input audio signal or are derived there from.

    Abstract translation: 一种用于从输入音频信号产生多个扬声器的多个输出信号的音频信号处理装置（10）包括适于确定多个扬声器的驱动功能的驱动功能确定单元（11），用于产生虚拟左双耳 信号源和虚拟右双耳信号源，基于虚拟左双耳信号源的位置和方向性，虚拟右双耳信号源的位置和方向性以及多个扬声器的位置。 此外，它包括适于使用多个扬声器的驱动功能来过滤左双耳信号和右双耳信号的滤波单元（12），导致多个输出信号。 左双耳信号和右双耳信号构成输入音频信号或从中导出。

    A DIGITAL COMPRESSOR FOR COMPRESSING AN AUDIO SIGNAL
    5.
    发明申请
    A DIGITAL COMPRESSOR FOR COMPRESSING AN AUDIO SIGNAL 审中-公开
    用于压缩音频信号的数字压缩机

    公开(公告)号：WO2015113602A1

    公开(公告)日：2015-08-06

    申请号：PCT/EP2014/051795

    申请日：2014-01-30

    Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  GROSCHE, Peter ,  LANG, Yue ,  ZHANG, Qing

    Inventor： GROSCHE, Peter ,  LANG, Yue ,  ZHANG, Qing

    IPC: H03G7/00

    CPC classification number: H03G7/002 ,  H03G7/007 ,  H03G9/18

    Abstract: The invention relates to a digital compressor (100) for compressing an input audio signal, the digital compressor (100) comprising a compression gain control (101) for providing a compression gain parameter, a compression parameter determiner (103) for determining a compression ratio from the compression gain parameter, the compression parameter determiner (103) being configured to weight the compression gain parameter by a predetermined weight factor to obtain the compression ratio, an auxiliary signal generator (105) for manipulating the input audio signal in dependence of the compression ratio to obtain a first auxiliary signal, and a combiner unit (107) 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.

    Abstract translation: 本发明涉及一种用于压缩输入音频信号的数字压缩器（100），数字压缩器（100）包括用于提供压缩增益参数的压缩增益控制（101），用于确定压缩比的压缩参数确定器（103） 根据压缩增益参数，压缩参数确定器（103）被配置为将压缩增益参数加权预定权重因子以获得压缩比;辅助信号发生器（105），用于根据压缩来操纵输入音频信号 比率以获得第一辅助信号;以及组合器单元（107），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。

    AN AUDIO SIGNAL PROCESSING APPARATUS FOR PROCESSING AN INPUT EARPIECE AUDIO SIGNAL UPON THE BASIS OF A MICROPHONE AUDIO SIGNAL
    6.
    发明申请
    AN AUDIO SIGNAL PROCESSING APPARATUS FOR PROCESSING AN INPUT EARPIECE AUDIO SIGNAL UPON THE BASIS OF A MICROPHONE AUDIO SIGNAL 审中-公开
    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

    Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  FALLER, Christof ,  FAVROT, Alexis ,  GROSCHE, Peter ,  LANG, Yue

    Inventor： FALLER, Christof ,  FAVROT, Alexis ,  GROSCHE, Peter ,  LANG, Yue

    IPC: G10L21/034

    CPC classification number: G10L21/034 ,  G10L21/0205 ,  G10L25/78 ,  G10L25/84

    Abstract: 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.

    Abstract translation: 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。

    SURROUND SOUND RECORDING FOR MOBILE DEVICES
    7.
    发明申请
    SURROUND SOUND RECORDING FOR MOBILE DEVICES 审中-公开
    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

    Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  FALLER, Christof ,  FAVROT, Alexis ,  GROSCHE, Peter ,  LANG, Yue

    Inventor： FALLER, Christof ,  FAVROT, Alexis ,  GROSCHE, Peter ,  LANG, Yue

    IPC: H04R3/00 ,  H04R1/32 ,  H04R1/40

    CPC classification number: H04R5/027 ,  H04R1/326 ,  H04R1/406 ,  H04R3/005 ,  H04R5/04 ,  H04R2430/21 ,  H04R2499/11 ,  H04S3/00 ,  H04S2400/15

    Abstract: 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).

    Abstract translation: 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） ）。

    PORTABLE ELECTRONIC DEVICE WITH DIRECTIONAL MICROPHONES FOR STEREO RECORDING
    8.
    发明申请
    PORTABLE ELECTRONIC DEVICE WITH DIRECTIONAL MICROPHONES FOR STEREO RECORDING 审中-公开
    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

    Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  ZHANG, Deming ,  VIRETTE, David ,  LANG, Yue

    Inventor： ZHANG, Deming ,  VIRETTE, David ,  LANG, Yue

    IPC: H04M1/03 ,  H04M1/02 ,  H04R1/40 ,  H04R5/027

    CPC classification number: H04R1/08 ,  H04M1/0202 ,  H04M1/035 ,  H04R5/027 ,  H04R2499/11

    Abstract: 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.

    Abstract translation: 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）。

    METHOD FOR INTER-CHANNEL DIFFERENCE ESTIMATION AND SPATIAL AUDIO CODING DEVICE
    9.
    发明申请
    METHOD FOR INTER-CHANNEL DIFFERENCE ESTIMATION AND SPATIAL AUDIO CODING DEVICE 审中-公开
    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

    Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  LANG, Yue ,  VIRETTE, David ,  XU, Jianfeng

    Inventor： LANG, Yue ,  VIRETTE, David ,  XU, Jianfeng

    IPC: G10L19/008 ,  H04S3/00

    CPC classification number: G10L19/008 ,  H04S3/008 ,  H04S2400/01 ,  H04S2420/01 ,  H04S2420/03

    Abstract: 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.

    Abstract translation: 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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