Abstract
One of the issues in using audio books for building a synthetic voice is the segmentation of large speech files. The use of the Viterbi algorithm to obtain phone boundaries on large audio files fails primarily because of huge memory requirements. Earlier works have attempted to resolve this problem by using large vocabulary speech recognition system employing restricted dictionary and language model. In this paper, we propose suitable modifications to the Viterbi algorithm and demonstrate its usefulness for segmentation of large speech files in audio books. The utterances obtained from large speech files in audio books are used to build synthetic voices. We show that synthetic voices built from audio books in the public domain have Mel-cepstral distortion scores in the range of 4-7, which is similar to voices built from studio quality recordings such as CMU ARCTIC.
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