公开(公告)号：US20160323687A1

公开(公告)日：2016-11-03

申请号：US15210644

申请日：2016-07-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wenhai WU ,  Lei MIAO ,  Yue LANG ,  Qi ZHANG

IPC: H04S5/00 ,  G10L19/008

CPC classification number: H04S5/005 ,  G10L19/008 ,  H04S5/00 ,  H04S2420/01 ,  H04S2420/03

Abstract: A stereo decoding method and apparatus are disclosed. The method includes: restoring a monophonic signal from a received code stream through decoding; restoring an interchannel level difference, a group delay, and a group phase from the received code stream through decoding; and processing the monophonic signal according to the interchannel level difference, group delay, and group phase to obtain a first channel signal and a second channel signal. According to the stereo decoding method and apparatus provided in embodiments of the present invention, the first and second channel signals are obtained according to the monophonic signal, ILD, group delay, and group phase by referring to not only the ILD but also the group delay and group phase, thereby yielding favorable stereo sound field effect for the obtained first and second channel signals.

Abstract translation: 公开了一种立体声解码方法和装置。 该方法包括：通过解码从接收到的码流中恢复单声道信号; 通过解码从接收到的代码流中恢复通道间级差，组延迟和组相位; 以及根据通道间电平差，组延迟和组相位处理单声道信号以获得第一通道信号和第二通道信号。 根据本发明的实施例中提供的立体声解码方法和装置，不仅参照ILD而且还参照组延迟，根据单声道信号，ILD，组延迟和组相位来获得第一和第二声道信号 和组相位，从而为获得的第一和第二信道信号产生有利的立体声场效应。

公开(公告)号：US20160254002A1

公开(公告)日：2016-09-01

申请号：US15154655

申请日：2016-05-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xingtao ZHANG ,  Lei MIAO ,  Wenhai WU

IPC: G10L19/008

CPC classification number: G10L19/008

Abstract: Present disclosure discloses a method and an apparatus for encoding a stereo phase parameter, which relate to the field of information technologies and can improve an effect of stereo audio phase information. The method includes: first, acquiring a global stereo phase parameter of a current frame; then, determining a value of the global stereo phase parameter of the current frame, and adjusting the value of the global stereo phase parameter of the current frame according to a determining result of the value of the global stereo phase parameter of the current frame; and finally, encoding an adjusted value of the global stereo phase parameter of the current frame. The embodiments of the present disclosure are applicable to recovering stereo phase information.

Abstract translation: 本公开公开了一种用于对立体声相位参数进行编码的方法和装置，其涉及信息技术领域并且可以改善立体声音频相位信息的效果。 该方法包括：首先获取当前帧的全局立体相参数; 然后，确定当前帧的全局立体相参数的值，并根据当前帧的全局立体相位参数的值的确定结果调整当前帧的全局立体相参数的值; 并且最后，对当前帧的全局立体相参数的调整值进行编码。 本公开的实施例适用于恢复立体声相位信息。