公开(公告)号：US09514759B2

公开(公告)日：2016-12-06

申请号：US14460074

申请日：2014-08-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： David Virette ,  Janusz Klejsa ,  Willem Bastiaan Kleijn

IPC: G10L19/008

CPC classification number: G10L19/008

Abstract: A method and apparatus for performing an adaptive down-mixing of a multichannel audio signal comprising a number of input channels, wherein a signal adaptive transformation of said input channels is performed by multiplying the input channels with a downmix block matrix comprising a fixed block for providing a set of backward compatible primary channels and a signal adaptive block for providing a set of secondary channels.

Abstract translation: 一种用于执行包括多个输入通道的多通道音频信号的自适应降混的方法和装置，其中所述输入通道的信号自适应变换通过将输入通道与包括固定块的下混块矩阵相乘来进行，以提供 一组向后兼容的主信道和用于提供一组次信道的信号自适应块。