发明名称 |
APPARATUS AND METHOD FOR CODING AUDIO DATA BASED ON INPUT SIGNAL DISTRIBUTION CHARACTERISTICS OF EACH CHANNEL |
摘要 |
Provided is an audio coding apparatus and method that can selectively apply a operation mode of a coding module for stereo or multi-channel representation according to input signal characteristics of each channel, when voice or music signals are transmitted using an audio codec in portable terminals capable of stereo or multi-channel input and output. The audio coding apparatus includes a down-mixer for down-mixing multi-channel audio signals into mono signals; a coder for coding the mono signals; an input channel correlation analyzer for deciding whether to give them stereo effect based on their signal distribution characteristics, and outputting a control signal indicating whether to perform stereo representation process; and a stereo representation unit for performing stereo representation process onto the multi-channel audio signals when the control signal indicating to perform stereo representation process.
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申请公布号 |
US2010153119(A1) |
申请公布日期 |
2010.06.17 |
申请号 |
US20070518263 |
申请日期 |
2007.12.07 |
申请人 |
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
LEE MI-SUK;KIM DO-YOUNG;JUNG HAE-WON |
分类号 |
G10L19/00;G10L19/008 |
主分类号 |
G10L19/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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