UCLA Dept. of Linguistics
3125 Campbell Hall
Los Angeles, CA 90095-1543
I'm a fourth year PhD candidate in the Dept. of Linguistics at UCLA and a member of the UCLA Phonetics Lab.
I'm interested in prosody and speech perception (and more generally phonetics and laboratory phonology). My main research program focuses on how prosodic/intonational structure, and its phonetic correlates, influence speech processing. I seek to address questions such as:
- How does prosodic modulation of phonetic detail, and prosodic organizaiton of the speech signal, influence listeners' perception of segmental contrasts? [Steffman 2019b]
- How do these effects relate to other perceptual processes? [Steffman 2019a] [Steffman & Jun 2019]
- What can these findings tell us more broadly about speech perception, and the role of different types of information in speech processing?
Check out the vita tab for a full list of publications and presentations. Scroll down for a list of recent activities, and some other current projects.
Recent and upcoming
- WCCFL 2020: Sun-Ah Jun and I will be presenting some recent work at WCCFL 2020 at UBC. Our talk is entitled: "Prosodic prominence in speech perception: the influence of focus structure on the perception of durational and spectral cues".
- Sun-Ah Jun and I recently published in a paper in JASA: "Perceptual integration of pitch and duration: prosodic and psychoacoustic influences in speech perception." Check it out here.
- My paper "Phrase-final lengthening modulates listeners’ perception of vowel duration as a cue to coda stop voicing." is recently out in JASA. Check it out here.
Other current projects
- The role of different aspects of phonological and lexical organization in speech perception: disentangling and comparing the influence of biphone probability and neighborhood density in phonetic categorization (in collaboration with Megha Sundara). We're also testing how these effects play out online with eyetracking.
- The influence of intonational structure and context on listeners' perception of durational cues, and processing of pitch accent in Tokyo Japanese (in collaboration with Hironori Katsuda).
- The articulation and acoustics of voiced aspirated sounds in Dschang (Yemba), a language spoken in Cameroon (in collaboration with Matt Faytak and Rolain Tankou). Dschang has voiced and fully aspirated (not breathy-voiced) segments, for example [ndʰù] 'distant relative' (n.b. NOT [ndʱù]), cf. [ndù] 'river'. We're using EGG to explore the timing of voicing across these segments and to quantify voice quality for pre-aspiration voicing.
- The influence of tonal cues to prosodic (AP) phrasing on the perception of segmental contrasts in Seoul Korean, as a function of domain initial strenghtning (in collaboration with Sun-Ah Jun, Taehong Cho and Sahyang Kim).