Slovenian Text-to-Speech Synthesis for Speech User Interfaces

The paper presents the design concept of a unitselection text-to-speech synthesis system for the Slovenian language. Due to its modular and upgradable architecture, the system can be used in a variety of speech user interface applications, ranging from server carrier-grade voice portal applications, desktop user interfaces to specialized embedded devices. Since memory and processing power requirements are important factors for a possible implementation in embedded devices, lexica and speech corpora need to be reduced. We describe a simple and efficient implementation of a greedy subset selection algorithm that extracts a compact subset of high coverage text sentences. The experiment on a reference text corpus showed that the subset selection algorithm produced a compact sentence subset with a small redundancy. The adequacy of the spoken output was evaluated by several subjective tests as they are recommended by the International Telecommunication Union ITU.

Authors:

• Jerneja Žganec Gros
• Aleš Mihelič
• Nikola Pavešić
• Mario Žganec
• Stanislav Gruden

Keywords:

• text-to-speech synthesis
• prosody modeling
• speech user interface.

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