Fundamental frequency and rate on synthetic speech (Vojtech et al., 2019)

Jennifer M. Vojtech, Jacob P. Noordzij, Gabriel J. Cler & Cara E. Stepp
Purpose: This study investigated how modulating fundamental frequency (f0) and speech rate differentially impact the naturalness, intelligibility, and communication efficiency of synthetic speech.Method: Sixteen sentences of varying prosodic content were developed via a speech synthesizer. The f0 contour and speech rate of these sentences were altered to produce 4 stimulus sets: (a) normal rate with a fixed f0 level, (b) slow rate with a fixed f0 level, (c) normal rate with prosodically natural f0 variation,...
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