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ESCA - NATO/RSG 10 Workshop on
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ESCA - NATO/RSG 10 Workshop on
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A set of speech technology algorithms and tools has been developed and tested in a mail area code information system and several other applications. Speaker independent connected-words recognition was used to recognize isolated words, area codes with four digits, telephone numbers of variable length, and times of day in their natural German format (M16 Uhr 45"). Speech synthesis was employed for two purposes: Text-to-speech allowed to rapidly specify, test, and modify voice-based dialogues. Synthesis by concept helped to echo a large set of city and town names corresponding to area codes in a natural utterance context. Our experience shows, that recognition both of isolated and connected words works sufficiently well, even in noisy environments, and that synthesis by concept is sufficiently natural to be accepted by naive listeners.
Bibliographic reference. Dobler, S. / Meyer, P. / Rühl, H. W. (1993): "Voice-controlled assistance for the new German mail area codes", In AST-1993, 23-26.