发明名称 |
Stereo acoustic signal encoding apparatus, stereo acoustic signal decoding apparatus, and methods for the same |
摘要 |
Disclosed is a stereo acoustic signal encoding apparatus in which the signal quality does not deteriorate if there are a plurality of sound sources. A peak tracing unit (401) splits frames of a right channel signal and a left channel signal into a plurality of sub frames; detects the peaks of wave shapes of the split sub frames; and estimates a frame delay time D for each frame of the right channel signal and the left channel signal by comparing the positions of the detected peaks. A time adjusting unit (402) adjusts the time of the right channel signal on the basis of the frame time delay D. A down-mix operation is carried out using the right channel signal which has been subjected to the time adjustment and the left channel signal to generate a mono signal and a sub signal. A mono signal encoding unit (403) encodes the mono signal. A sub signal encoding unit (404) encodes the sub signal. The time delay encoding unit (405) encodes the frame time delay D.
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申请公布号 |
US8504378(B2) |
申请公布日期 |
2013.08.06 |
申请号 |
US201013145514 |
申请日期 |
2010.01.21 |
申请人 |
LIU ZONGXIAN;CHONG KOK SENG;PANASONIC CORPORATION |
发明人 |
LIU ZONGXIAN;CHONG KOK SENG |
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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