Invention Application
- Patent Title: Method for Inter-Channel Difference Estimation and Spatial Audio Coding Device
- Patent Title (中): 信道间差分估计和空间音频编码装置的方法
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Application No.: US14145432Application Date: 2013-12-31
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Publication No.: US20140164001A1Publication Date: 2014-06-12
- Inventor: Yue Lang , David Virette , Jianfeng Xu
- Applicant: Huawei Technologies Co., Ltd.
- Applicant Address: CN Shenzhen
- Assignee: Huawei Technologies Co., Ltd.
- Current Assignee: Huawei Technologies Co., Ltd.
- Current Assignee Address: CN Shenzhen
- Main IPC: G10L19/008
- IPC: G10L19/008

Abstract:
Methods and devices for a low complex inter-channel phase difference estimation are provided. A method for the estimation of inter-channel phase differences (IPDs), comprises applying a transformation from a time domain to a frequency domain to a plurality of audio channel signals, calculating a plurality of IPD values for the IPDs between at least one of the plurality of audio channel signals and a reference audio channel signal over a predetermined frequency range, each IPD value being calculated over a portion of the predetermined frequency range, calculating, for each of the plurality of IPD values, a weighted IPD value by multiplying each of the plurality of IPD values with a corresponding frequency-dependent weighting factor, and calculating an IPD range value for the predetermined frequency range by adding the plurality of weighted IPD values.
Public/Granted literature
- US09275646B2 Method for inter-channel difference estimation and spatial audio coding device Public/Granted day:2016-03-01
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