发明名称 |
Low-complexity audio transcoding |
摘要 |
<p>In an audio coding system, an encoding transmitter represents encoded spectral components as normalized floating-point numbers. The transmitter provides first and second control parameters that may be used to transcode the encoded spectral parameters. A transcoder uses first control parameters to partially decode the encoded components and uses second control parameters to re-encode the components. The transmitter determines the second control parameters by analyzing the effects of arithmetic operations in the partial-decoding process to identify situations where the floating-point representations lose normalization. Exponents associated with the numbers that lose normalization are modified and the modified exponents are used to calculate the second control parameters.</p> |
申请公布号 |
EP2136361(B1) |
申请公布日期 |
2013.05.22 |
申请号 |
EP20090012227 |
申请日期 |
2004.01.30 |
申请人 |
DOLBY LABORATORIES LICENSING CORP. |
发明人 |
LENNON, BRIAN TIMOTHY;TRUMAN, MICHAEL MEAD;ANDERSEN, ROBERT LORING |
分类号 |
G10L19/16;G10L19/02 |
主分类号 |
G10L19/16 |
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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