Dynamic features of speech and the characterization of speakers: towards a new approach using formant frequencies

Making decisions with a continuous mind

“…In economics, principles of self-organization have been applied as an explanation for the complexity of macro-and microeconomics (Arthur, 1999;Rosser, 1999Rosser, , 2007. In psychology and neuroscience, recent research has included studies of leadership behavior (Guastello & Bond, 2007), self-esteem (Delignières, Fortes, & Ninot, 2004), self-control (Warren, Sprott, & Hawkins, 2002), emotion (Lewis, 2000(Lewis, , 2005, empathy (Guastello, Pincus, & Gunderson, 2006), motor development and coordination (Athènes, Sallagoïty, Zanone, & Albaret, 2004;Bardy, Oullier, Bootsma, & Stoffregen, 2002;Clearfield, Diedrich, Smith, & Thelen, 2006;Kelso & Zanone, 2002;Lagarde & Kelso, 2006), cognitive development (Thelen et al, 2001), social development (Granic & Patterson, 2006), judgment (van Rooij & Bongers, 2000), learning (Churchill, 2008;de Bot, Lowie, & Verspoor, 2007;Kostrubiec, Tallet, & Zanone, 2006), language and speech (Almonte, Jirsa, Large, & Tuller, 2005;McDougall, 2006), dynamic adaptation in complex tasks (Kozma, Harter, & Achunala, 2007), perception (Giraudo & Pailhous, 1999;Rodriguez et al, 1999), and neural coordination (Freeman, 2003;Kerick, Hatfield, & Allender, 2007;Varela, Lachaux, Rodriguez, & Martinerie, 2001). Evidence for a self-organizing basis of cognition has also been provided by a large number of modeling studies simulating empirical data, covering a diverse collection of topics-for example, language (Elman, 2004;Farrar & Van Orden, 2001;…”

Investigating the relationship between average speaker fundamental frequency and acoustic vowel space size

“…Inter-speaker variability has until now mostly been investigated in terms of static targets and stable acoustic regions. Interestingly, it has been found that (1) dynamic movements and acoustic transitions between the targets can be also speaker-specific (McDougall, 2006), and (2) they seem to be influenced by individual physiological differences (Weirich, 2012). Simpson (2001Simpson ( , 2002 examines the possibility that differences in the dimensions of the vocal tract have consequences for the dynamic realization of speech.…”

Formant dynamics of bilingual identical twins

“…The correct identifications rates were above 90% for all the five diphthongs. McDougall (2004McDougall ( , 2006 investigated the formant dynamics of /aɪk/ in Australian English in the speech of five male speakers, both at normal and at fast speech rate, with nuclear stress and without nuclear stress. She measured the frequencies of the first three formants at every +10% point.…”

“…Besides using absolute formant frequency values, we also followed McDougall (2006) in characterising the first three formant contours with cubic polynomial equations (i.e., each formant was fitted with an equation y ¼a 0 +a 1 t+a 2 t 2 +a 3 t 3 , in which t stands for the time point). The coefficients (i.e., a 0 , a 1 , a 2 , and a 3 of the three equations, 12 predictors in all) were used as predictors to conduct classifications.…”