An acoustic analysis of tone and register in Louma Oeshi


  • Sigrid Lew Payap University
  • James Gruber Reed College



tone, register, phonation, endangered, undocumented, Tibeto-Burman


This study describes the acoustic properties associated with tone and register in Louma Oeshi, a previously unstudied Akoid language of Laos. Louma Oeshi uses three tones (High, Mid, and Low) which overlap with a tense/lax register distinction to yield a six-way suprasegmental contrast. In this paper, we (1) offer a first account of the pitch and voice quality characteristics associated with each Tone-Register pair, (2) examine further the variability in glottalization strategies signaling the constricted register, and (3) explore the influence of contrastive voice quality on pitch and vice versa, particularly as a predictor of the variation in glottalization.

Author Biographies

  • Sigrid Lew, Payap University
    Instructor, Graduate Linguistics Program
  • James Gruber, Reed College
    Visiting Assistant Professor, Department of Linguistics




How to Cite

Lew, Sigrid, and James Gruber. 2016. “An Acoustic Analysis of Tone and Register in Louma Oeshi”. Proceedings of the Linguistic Society of America 1 (June): 33:1–14.