@article{KashimaWilliamsEllisonetal.2016,
  author    = {Kashima, Eri and Williams, Daniel and Ellison, T. Mark and Schokkin, Dineke and Escudero, Paola},
  title     = {Uncovering the acoustic vowel space of a previously undescribed language: The vowels of Nambo},
  series = {The journal of the Acoustical Society of America},
  volume    = {139},
  journal   = {The journal of the Acoustical Society of America},
  publisher = {American Institute of Physics},
  address   = {Melville},
  issn      = {0001-4966},
  doi       = {10.1121/1.4954395},
  pages     = {EL252 -- EL256},
  year      = {2016},
  abstract  = {This study presents the first acoustic description of the vowel space of a Papuan language—Nambo, spoken in southern Papua New Guinea—based on duration and first and second formant measurements from 19 adult male and female speakers across three age groups (young, middle-aged, senior). Phonemically, Nambo has six full vowels /i, e, {\ae}, \&\#593;, o, u/ and a reduced vowel tentatively labeled /\&\#601;/. Unlike the full vowels, the quality of /\&\#601;/ showed great variation: seniors' and young females' realizations tended to be more open and retracted than those by young males, while middle-aged speakers' productions fell between these two variants.},
  language  = {en}
}
@article{ElvinWilliamsEscudero2016,
  author    = {Elvin, Jaydene and Williams, Daniel and Escudero, Paola},
  title     = {Dynamic acoustic properties of monophthongs and diphthongs in Western Sydney Australian English},
  series = {The journal of the Acoustical Society of America},
  volume    = {140},
  journal   = {The journal of the Acoustical Society of America},
  publisher = {American Institute of Physics},
  address   = {Melville},
  issn      = {0001-4966},
  doi       = {10.1121/1.4952387},
  pages     = {576 -- 581},
  year      = {2016},
  abstract  = {This study provides a thorough acoustic analysis of the 18 Australian English monophthongs and diphthongs produced in a variety of phonetic contexts by young adult speakers from Western Sydney. The 18 vowels are well separated by duration and dynamic formant trajectory information. Vowel durations and formant trajectories were affected by the consonantal context in which the vowels were produced, particularly those produced in the /hVd/ context. Finally, the results indicate that capturing aspects of vowel inherent spectral change may be useful in future cross-dialectal and cross-linguistic studies. (C) 2016 Acoustical Society of America.},
  language  = {en}
}