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Intelligibility of sung words In polytextual settings

Three experiments used word-spotting to examine influences of phonetic and musical parameters on intelligibility of closed-set but unpredictable words in polytextual singing. Main comparisons were: 3 musical genres (medieval polyphonic motet, similar but homophonic motet, jingle); harmony (consonant, dissonant); keyword phonetic properties (‘acoustic contrast’, vowel length, vowel quality); contrast between keyword and competitor word (Onset, Vowel, Coda). Results showed strong effects of phonetic and musical parameters that affect pitch continuity and rhythm. Vowel quality affected responses but with no discernibly consistent pattern.