. Author manuscript; available in PMC: 2017 Aug 21.

Published in final edited form as: J Speech Lang Hear Res. 2014 Aug;57(4):1191–1205. doi: 10.1044/2014_JSLHR-S-13-0086

Table 1.

Acoustic measures for both clear and conversational sentence production to characterize the speech patterns of participants.

Speaker	Vowel space area (Hz²)		Sound pressure level (dB)		Fundamental frequency (Hz)		Mean articulation rate (syllables/second)
Speaker	Peripheral	Nonperipheral	M	SD	M	Range	Mean articulation rate (syllables/second)
PDM01
Conversation	244,503	73,101	72.76	7.69	120	65	4.13
Clear	212,831	71,433	76.73	9.97	151	105	3.15
PDM06
Conversation	91,462	23,238	71.60	8.44	113	35	3.65
Clear	171,423	50,169	77.63	10.27	128	53	2.91
Control males
Conversation	225,205	56,084	74.80	8.56	114	91	3.76
Clear	350,181	104,116	79.83	9.82	138	122	2.43

Note. For comparison purposes, selected acoustic measures for eight male control talkers reported in Tjaden et al. (2013) are provided.