Perceptual and objective detection of discontinuities in concatenative speech synthesis
ICASSP '01 Proceedings of the Acoustics, Speech, and Signal Processing, 200. on IEEE International Conference - Volume 02
Quality deterioration factors in unit selection speech synthesis
TSD'07 Proceedings of the 10th international conference on Text, speech and dialogue
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When we started to deal with the unit selection technique in ARTIC TTS, the question of the choice of the unit type used within the system was being dealt with Although the basic version of our TTS system is based on triphones, we decided on the use of diphones in unit selection – mainly due to our concerns about the susceptibility of the unit selection technique to segmentation inaccuracies, and due to a limited experience with the overall system behaviour However, we also planned to examine the possibilities of the use of triphones As the first version of our unit selection is being built at present, this paper will examine whether the use of diphones can bring a significant advantage over the use of triphones, and whether there is a clear reason why one type of units behaves better than the other.