Patent Document ID: 8175865
Application ID: 11956336

Base Claim:
1. A method of text script generation for a corpus-based text-to-speech system configured with a computing device for text script searching and processing and a memory device for corpus storage, comprising: (a) searching in a source corpus being stored in said memory device and having L sentences, selecting N sentences with a best integrated efficiency as N best cases, and setting iteration k to be 1, k, L and N being natural numbers, N≦L; (b) for each case n of the N best cases, 1≦n≦N, searching in said source corpus and selecting by the computing device, M k+1 best sentences with the best integrated efficiency from the unselected sentences in said source corpus, 1≦M k+1 ≦L; (c) searching in said source corpus and keeping N best cases out of the total unselected sentences for next iteration, and increasing iteration k by 1; and (d) if a termination criterion being reached, setting the best case in the N traced cases as the text script, otherwise, returning to step (b); wherein said best integrated efficiency depends on a function of combining the covering rate efficiency of unit types, the hit rate efficiency of unit types, and the text script size.

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Claim 4:
4. The method of text script generation for a corpus-based text-to-speech system according to claim 1 , wherein said termination criterion is a function of at least one of threshold for text script size, covering rate of unit types, hit rate of unit types, and integrated rate.