Download - Olga Pustovalova
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Olga Pustovalova, State University of Moldova
Scientific advisor: Gheorghe Căpăţână, Ph.D.
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Voice output
1. Voice recordings2. Text-to-speech (TTS)
TTS:Software that can read electronic
texts automatically.Language-dependent.
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Advantages
Auditory learning style
Fewer eyestrainSeveral tasks at a
time
Accessibility
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Disadvantages
Quality issuesBandwidth issues
Non-auditory learning styles?
Search, scanning, scrolling?
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Research topic
Voice output
Speech synthesis (TTS)
Speech synthesis based on a limited-domain dictionary
Use casesUse cases ArchitecturesArchitectures
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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
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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
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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
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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.
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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.