公开(公告)号：US20160037260A1

公开(公告)日：2016-02-04

申请号：US14820143

申请日：2015-08-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： Christof Faller ,  David Virette ,  Yue Lang

IPC: H04R5/04 ,  H04S7/00 ,  H04S1/00

CPC classification number: H04R5/04 ,  H04R2205/021 ,  H04R2499/11 ,  H04S1/007 ,  H04S7/303 ,  H04S2420/03

Abstract: The invention relates to a method for rendering a stereo audio signal over a first loudspeaker and a second loudspeaker with respect to a desired direction, the stereo audio signal comprising a first audio signal component (L) and a second audio signal component (R), the method comprising: providing a first rendering signal based on a combination of Land a first difference signal obtained based on a difference between L and R to the first loudspeaker, and providing a second rendering signal based on a combination of R and a second difference signal obtained based on the difference between L and R to the second loudspeaker, such that both difference signals are different with respect to sign and one difference signal is delayed by a delay compared to the other difference signal to define a dipole signal, wherein the delay is adapted according to the desired direction.

Abstract translation: 本发明涉及一种用于相对于期望方向在第一扬声器和第二扬声器上渲染立体声音频信号的方法，所述立体声音频信号包括第一音频信号分量（L）和第二音频信号分量（R） 该方法包括：基于Land的组合，将基于L和R之间的差值获得的第一差分信号提供给第一扬声器，并且基于R和第二差分信号的组合提供第二渲染信号 基于与第二扬声器的L和R之间的差异获得，使得两个差分信号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了一个延迟，以限定偶极子信号，其中延迟是 根据所需的方向进行调整。

公开(公告)号：US09247334B2

公开(公告)日：2016-01-26

申请号：US14554298

申请日：2014-11-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Deming Zhang ,  David Virette ,  Yue Lang

IPC: H04R21/02 ,  H04R1/08 ,  H04M1/03 ,  H04R5/027 ,  H04M1/02

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

Abstract: The invention relates to a portable electronic device, comprising: a housing comprising at least one hole; and at least two directional microphones mounted in the housing and placed coincidentally for stereo sound pickup, each one of the microphones defining a main sound axis and each one of the two directional microphones 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 is a common hole shared between the at least two directional microphones such that the main sound axis of the at least two directional microphones are pointing through the common hole in different directions.

Abstract translation: 本发明涉及一种便携式电子设备，包括：壳体，包括至少一个孔; 以及安装在壳体中的至少两个定向麦克风并且巧妙地放置用于立体声拾音，每个麦克风限定主声轴，并且两个定向麦克风中的每一个定义了直接声音方向和相反方向，其描述了相反的方向 的主声轴，其中所述至少一个孔是在所述至少两个定向麦克风之间共享的公共孔，使得所述至少两个定向麦克风的主声轴在不同方向上指向所述公共孔。

公开(公告)号：US20150334501A1

公开(公告)日：2015-11-19

申请号：US14811438

申请日：2015-07-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Miao ,  Chen Hu ,  Wenhai Wu ,  Yue Lang

IPC: H04S3/00 ,  G10L19/00

CPC classification number: H04S3/00 ,  G10L19/00 ,  G10L19/008

Abstract: A method and an apparatus for generating a sideband residual signal. The method includes comparing energy of a first signal input by a first sound channel with energy of a second signal input by a second sound channel, if the energy of the first signal is greater than the energy of the second signal, generating a sideband residual signal by allocating a monophonic quantization error to the first signal, and if the energy of the first signal is smaller than the energy of the second signal, generating a sideband residual signal by allocating a monophonic quantization error to the second signal. By using the method and apparatus provided in the embodiments of the present invention, it can be avoided that a monophonic quantization error has a greater impact on a signal whose energy is smaller.

Abstract translation: 一种用于产生边带残留信号的方法和装置。 该方法包括：如果第一信号的能量大于第二信号的能量，则将由第一声道输入的第一信号的能量与由第二声道输入的第二信号的能量进行比较，产生边带残留信号 通过对第一信号分配单声道量化误差，并且如果第一信号的能量小于第二信号的能量，则通过向第二信号分配单声道量化误差来产生边带残留信号。 通过使用本发明实施例中提供的方法和装置，可以避免单声道量化误差对能量较小的信号的影响较大。

公开(公告)号：US09123329B2

公开(公告)日：2015-09-01

申请号：US13708611

申请日：2012-12-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Miao ,  Chen Hu ,  Wenhai Wu ,  Yue Lang

IPC: H04R5/00 ,  G10L19/008

CPC classification number: H04S3/00 ,  G10L19/00 ,  G10L19/008

Abstract: Embodiments of the present invention provide a method and an apparatus for generating a sideband residual signal. The method includes: comparing energy of a first signal input by a first sound channel with energy of a second signal input by a second sound channel; if the energy of the first signal is greater than the energy of the second signal, generating a sideband residual signal by allocating a monophonic quantization error to the first signal; and if the energy of the first signal is smaller than the energy of the second signal, generating a sideband residual signal by allocating a monophonic quantization error to the second signal. By using the method and apparatus provided in the embodiments of the present invention, it can be avoided that a monophonic quantization error has a greater impact on a signal whose energy is smaller.

Abstract translation: 本发明的实施例提供一种用于生成边带残留信号的方法和装置。 该方法包括：将通过第一声道输入的第一信号的能量与由第二声道输入的第二信号的能量进行比较; 如果第一信号的能量大于第二信号的能量，则通过向第一信号分配单声道量化误差来产生边带残差信号; 并且如果第一信号的能量小于第二信号的能量，则通过向第二信号分配单声道量化误差来产生边带残留信号。 通过使用本发明实施例中提供的方法和装置，可以避免单声道量化误差对能量较小的信号的影响较大。

公开(公告)号：US20130236022A1

公开(公告)日：2013-09-12

申请号：US13850655

申请日：2013-03-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： David Virette ,  Yue Lang ,  Lei Miao ,  Wenhai Wu

IPC: G10L19/008

CPC classification number: G10L19/008 ,  G10L19/025 ,  G10L21/0364

Abstract: 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.

Abstract translation: 根据本发明，描述了用于后处理多信道信号的多个信道信号的至少一个信道信号的装置（101,101'），所述至少一个信道信号是通过解码的下混合信号由 低比特率音频编码/解码系统，该装置包括：接收机（103; 103'），用于接收从解码缩混信号产生的至少一个信道信号，解码缩混信号的时间包络和分类指示 指示所述至少一个信道信号的瞬时类型，其中所述分类指示与所述至少一个信道信号相关联;以及后处理器（105; 105'），用于基于所述至少一个信道信号的时间包络来后处理所述至少一个信道信号 解码的下混合信号由相应的加权因子加权并且依赖于分类指示。