Key Data

Occupation: NLP Engineer
Employer: Cisco Systems
Email: lucien /
GitHub: serapio
LinkedIn: lucien-carroll
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Most of the documentation research I've done has focused on lexical tone, but word prosody and intonation have also been important themes.

This project aims to provide a description and analysis of the stress and tone of the variety of Mixtec spoken by the diaspora community in San Diego from Ixpantepec Nieves, Oaxaca, as well as to produce quantitative documentation of the acoustic correlates of these sound patterns.

Lucien Carroll. 2013. Ixpantepec Nieves Mixtec word prosody. Presented at the 1st International Conference on Meso-American Linguistics, Feb 22, 2013. [abstract] [handout]

Gabriela Caballero and Lucien Carroll. 2013. Loanword prosody in Choguita Rarámuri (Tarahumara) and Ixpantepec Nieves Tu’un Savi (Mixtec). Presented at VI Conference on Indigenous Languages of Latin America, UT Austin, Oct 24-26, 2013.

Lucien Carroll. 2014. Ixpantepec Nieves Mixtec word prosody. Presented at SSILA Annual Meeting, Jan 2-5, 2014. [abstract] [slides]

This work is supported by a UC MEXUS Dissertation Research Grant, and the research is one aspect of a more general collaboration with the Mixtec community in San Diego.

My primary effort in the Gitonga project was towards describing the pitch lowering that occurs in the final two syllables of utterances and the vowel lengthening that appears in the penultimate syllable of utterances and (to a lesser extent) prosodic phrases. Here is a poster about it.

Gitonga data also figured prominently in a presentation about blocked multiple exponence.

Lucien Carroll. 2012. When multiple exponence is blocked. Presented at the 1st American International Morphology Meeting, UMass Amherst. Sep 22, 2012. [poster] [abstract]

Jinhua Wu is a Chinese dialect spoken in central Zhejiang Province. The area is known for high regional variation and complicated tonal phonology. This study documented generational differences in the sandhi tones, showing that the tone contours changed in a way consistent with a temporal shift within the syllable, even while the tone categories stayed fairly consistent.

Lucien Carroll. 2010. A Contour Tone Chain Shift in Jinhua Wu Sandhi Tones. Presented at the Workshop on East Asian Languages, UC Santa Barbara. Feb 20, 2010. [slides] [abstract]

Lucien Carroll. 2010. A Diachronic Chain Shift in the Sandhi Tones of Jinhua Wu. Presented at the Linguistics Student Association Colloquium, San Diego State. May 1, 2010. [slides]

speaker similarities
Similarities among the sandhi systems of 15 speakers of Jinhua Wu, showing generational differences (blue vs. red boundaries) along dimension 1, and location differences (blue vs. yellow interiors) along dimension 3.