Introduction: sociophonetic studies of language variety production and perception / Dennis R. Preston, Nancy Niedzielski -- Studies of production. The peripatetic history of Middle English / Alice Faber, Marianna Di Paolo, Catherine T. Best -- Social and phonetic conditioners on the frequency and degree of 'intrusive /r/' in New Zealand English / Jen Hay and Margaret Maclagan -- Effects of consonantal context on the pronunciation of /ae/ in the English of speakers of Mexican heritage from south central Michigan / Rebecca Roeder -- Rhythm types and the speech of working-class youth in a banlieue of Paris: The role of vowel elision and devoicing / Zsuzsanna Fagyal -- The sociophonetics of prosodic contours on NEG in three language communities: teasing apart sociolinguistic and phonetic influences on speech / Malcah Yaeger-Dror ... [et al.] -- An emerging gender difference in Japanese vowel devoicing / Terumi Imai -- Studies of perception. Regional stereotypes and the perception of Japanese vowel devoicing / Midori Yonezawa Morris -- Phonetic detail, linguistic experience, and the classification of regional language varieties in the United States / Cynthia G. Clopper -- Perceptions of /a/-fronting across two Michigan dialects / Bartek Plichta and Brad Rakerd -- Belle's body just caught the fit gnat: the perception of Northern Cities Shifted vowels by local speakers / Dennis R. Preston -- Linguistic security, ideology, and vowel perception / Nancy Niedzielski -- Identification of