ArticleFrontiers in psychology2025
Factors modulating perception and production of speech by AI tools: a test case of Amazon Alexa and Polly.
Article in Frontiers in psychology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
To develop AI tools that can communicate on par with human speakers and listeners, we need a deeper understanding of the factors that affect their perception and production of spoken language. Thus, the goal of this study was to examine to what extent two AI tools, Amazon Alexa and Polly, are impacted by factors that are known to modulate speech perception and production in humans. In particular, we examined the role of lexical (word frequency, phonological neighborhood density) and stylistic (speaking rate) factors. In the domain of perception, high-frequency words and slow speaking rate significantly improved Alexa's recognition of words produced in real time by native speakers of American English (
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