发明名称 |
Method and system for parametric characterization of transient audio signals |
摘要 |
<p>A method of parametrically encoding a transient audio signal, including the steps of: (a) determining a set V of the largest N frequency components of the transient audio signal, where N is a predetermined number; (b) determining an approximate envelope of the transient audio signal; and (c) determining a predetermined number P of samples W of the approximate envelope for generating a spline approximation of the approximate envelope; whereby a parametric representation of the transient audio signal is given by parameters including V, N, P and W, such that a decoder receiving the parametric representation can reproduce a received approximation of the transient audio signal. <IMAGE></p> |
申请公布号 |
EP1385150(A1) |
申请公布日期 |
2004.01.28 |
申请号 |
EP20030016805 |
申请日期 |
2003.07.23 |
申请人 |
STMICROELECTRONICS ASIA PACIFIC PTE LTD. |
发明人 |
ABSAR, MOHAMMED JAVED;GEORGE, SAPNA |
分类号 |
G10L19/025;(IPC1-7):G10L19/02 |
主分类号 |
G10L19/025 |
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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