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Olga Pustovalova
 

Olga Pustovalova

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    Olga Pustovalova Olga Pustovalova Presentation Transcript

    • Olga Pustovalova, State University of Moldova [email_address] Scientific advisor : Gheorghe C ăpăţână, Ph.D.
    • Voice output
      • Voice recordings
      • Text-to-speech (TTS)
      • TTS:
      • Software that can read electronic texts automatically.
      • Language-dependent.
    • Advantages Auditory learning style Fewer eyestrain Several tasks at a time Accessibility
    • Disadvantages Quality issues Bandwidth issues Non-auditory learning styles? Search, scanning, scrolling?
    • Research topic Voice output Speech synthesis (TTS) Speech synthesis based on a limited-domain dictionary Use cases Architectures
    • Usage of TTS Unlimited dictionary: Lower quality. Texts of any type. Limited dictionary: Higher quality. Texts of specific structure. E.g. Julia Zhang (2004). Language Generation and Speech Synthesis in Dialogues for Language Learning
    • Difficult and exhausting to listen. Strange intonations, incorrect accents and pauses, unnatural way of reading. Most advanced tools not available for free. First impressions Text-to-speech. Unlimited dictionary. Russian TTS: user experience studies. 2008
    • Higher motivation to use TTS. It took several days to get comfortable with synthesized voice. Multi-tasking: listening while doing something else. Computer vs. creating audio-files for music players. Long-term users Text-to-speech. Unlimited dictionary. Russian TTS: user experience studies. 2008
    • Subjective quality Naturalness and intelligibility. Questionnaires. Modified mean opinion score (MOS). Objective quality Viswanathan (2005) Rix, Hollier (1993-2001) Pitch, jitter, harmonic-to-noise ratio.
      • TTS in daily life: studies of user experience
      • First impressions may discourage users
      • TTS -> study on the go (mp3 players)
      Preliminary results Ways of integrating TTS: preliminary drafts of architecture.