Speech encoding process combining written and spoken message cod

Details Speech encoding process combining written and spoken message cod Speech encoding process combining written and spoken message cod

1988-10-28

1990-03-27

Clark, David L.

Electrical audio signal processing systems and devices

Monitoring/measuring of audio devices

Loudspeaker operation

G10L 504

Patent

active

049127683

ABSTRACT:
A speech encoding process, wherein a first sequence of input data representative of a written version of a message to be coded is encoded to provide a first encoded speech sequence corresponding to the written version of the message to be coded, and a second sequence of input data derived from speech defining a spoken version of the same message is analyzed by a linear predictive codeing analyzer and encoding circuit to provide a second encoded speech sequence corresponding to the spoken version of the message to be coded. The codes of the corresponding written message and the codes of the spoken message are then combined in a control circuit encompassing an adaptation algorithm, and a composite encoded speech sequence is generated corresponding to the message from the combination of the first encoded speech sequence of the written version of the message and encoded intonation parameters of speech included in a portion of the second encoded speech sequence corresponding to the spoken version of the message. In a particular aspect of the speech encoding process, the encoded intonation parameters of speech included in the portion of the second encoded speech sequence corresponding to the spoken version of the message to be coded may be encoded data of the duration and pitch as the portion of the second encoded speech sequence combined with the first encoded speech sequence.

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