发明名称 |
Verfahren und Anordnung zum Codieren eines Sprachparameters, wie z.B. der Tonhöhe in Abhängigkeit von der Zeit |
摘要 |
In a device for and a method of encoding a first signal (f0), for example a speech parameter such as the pitch, as a function of time, to form a second signal, a third signal (k) is derived from the first signal, which third signal is a measure of the curvature of the first signal as a function of time. The extrema (such as k(t1) in Fig. 1b) in this third signal are determined and the second signal is generated in the form of a sequence of information blocks, of which one information block contains time information corresponding to the instant at which an extremum occurs in the third signal. A special encoding method is described, which is substantially immune to noise in the first signal. |
申请公布号 |
DE68927556(D1) |
申请公布日期 |
1997.01.30 |
申请号 |
DE1989627556 |
申请日期 |
1989.03.30 |
申请人 |
PHILIPS ELECTRONICS N.V., EINDHOVEN, NL |
发明人 |
HERMES, DIRK JAN, NL-5656 AA EINDHOVEN, NL |
分类号 |
G10L19/00;G10L11/00;H03M3/02;(IPC1-7):G10L9/12 |
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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