EUROSPEECH 2001 Scandinavia
7th European Conference on Speech Communication and Technology
2nd INTERSPEECH Event

Aalborg, Denmark
September 3-7, 2001

                 

Two Features to Check Phonetic Transcriptions in Text to Speech Systems

Stefano Sandri, Enrico Zovato

Loquendo, Vocal Technology and Services, Italy

The paper describes a framework to overcome some problems in the analysis of speech corpora used in text-to-speech systems. In particular two kinds of errors that can produce disagreeable effect at synthesis level have been examined. The first of them is the incorrect transcription of pauses (and more generally low energy intervals) and the second one is the mismatch between voiced intervals and the phonetic symbol that should represent them. For the first problem a statistical approach has been used, by comparing some features of the detected low energy intervals (LE) with those of trained data. The second problem has been faced extracting the voiced/unvoiced intervals (VU) and checking the coherence with the phonetic transcription and segmentation.

Full Paper

Bibliographic reference.  Sandri, Stefano / Zovato, Enrico (2001): "Two features to check phonetic transcriptions in text to speech systems", In EUROSPEECH-2001, 2243-2246.