“…ToBI is based on a phonological approach to prosody, that of autosegmental-metrical theory (Beckman & Pierrehumbert, 1986;Dilley, 2005;Goldsmith, 1976;Liberman, 1975;Pierrehumbert, 1980), and its labeling conventions are largely based on the theoretical work of Pierrehumbert and colleagues (Beckman & Pierrehumbert, 1986;Pierrehumbert, 1980;Pierrehumbert & Beckman, 1988), as well as earlier labeling systems (Price, Ostendorf, Shattuck-Hufnagel, & Fong, 1991;Wightman, Shattuck-Hufnagel, Ostendorf, & Price, 1992). Variants of ToBI have been proposed for a number of languages and dialects (Jun, 2005); in the present document, we will use "ToBI" to refer exclusively to the version that Beckman et al (2005) proposed for Mainstream American English. A standard ToBI transcription consists of four tiers of labels time-aligned with the speech signal: (1) an orthographic tier, on which text is labeled; (2) a tonal tier for labeling pitch events; (3) a break-index tier for labeling perceived disjuncture between words; and (4) a miscellaneous tier for additional information.…”