Table 3. Acoustic characteristics of the statements and questions and their final syllables.

Sentence type		Sentence				Final syllable
		Mean F0	Duration	Mean Intensity	Pitch Range	Mean F0	Duration	Mean Intensity	Glide Size	Glide Time	Glide Rate
Statement (n = 20)	μ	92.88	0.86	78.98	11.35	91.20	0.13	75.90	6.82	0.10	−61.19
	σ	2.17	0.22	3.44	7.27	4.61	0.04	6.89	7.20	0.05	84.70
Question (n = 20)	μ	93.66	0.89	80.09	7.75	92.50	0.19	77.68	3.59	0.12	−22.78
	σ	1.37	0.22	2.42	3.94	2.45	0.04	5.06	4.38	0.04	37.15
t-test	t	−2.22	−1.70	−2.86	2.46	−1.80	−5.89	−2.50	2.54	−1.65	−2.41
	p	0.04	0.11	0.01	0.02	0.09	<0.0001	0.02	0.02	0.12	0.03

Mean F₀ (in st) is the average fundamental frequency of the sentence (or the final syllable); duration (in s) is the length of the sentence (or the final syllable); mean intensity (in dB) is the mean-energy intensity of the sentence (or the final syllable); pitch range (in st) is defined as the difference in fundamental frequency between maximum and minimum F₀ of the sentence; glide size (in st) is the pitch excursion size of the final syllable ( = maximum F₀−minimum F₀); glide time (in s) is the duration between maximum and minimum F₀ of the final syllable; glide rate (in st/s) = glide size/glide time; μ = mean; σ = standard deviation; t is the statistic of the paired t-test (two-tailed, df = 19).