ISCA Archive Interspeech 2013
ISCA Archive Interspeech 2013

LAPSyd: lyon-albuquerque phonological systems database

Ian Maddieson, Sébastien Flavier, Egidio Marsico, Christophe Coupé, François Pellegrino

LAPSyD, the Lyon-Albuquerque Phonological Systems Database, is an online phonological database equipped with powerful query, mapping and visualization tools. It stems from the UPSID and WALS databases, enhanced with newly validated data not only covering segmental inventories but also syllable structures, stress and tonal systems. In its current version it covers around 700 languages and it is accessible at This paper provides a description of the data structure in LAPSyD and the features of the interface. Brief illustrations of the types of analysis that can be done with this tool are provided, exploiting the ability to cross-reference data on segments, other phonological properties and language location.

doi: 10.21437/Interspeech.2013-660

Cite as: Maddieson, I., Flavier, S., Marsico, E., Coupé, C., Pellegrino, F. (2013) LAPSyd: lyon-albuquerque phonological systems database. Proc. Interspeech 2013, 3022-3026, doi: 10.21437/Interspeech.2013-660

  author={Ian Maddieson and Sébastien Flavier and Egidio Marsico and Christophe Coupé and François Pellegrino},
  title={{LAPSyd: lyon-albuquerque phonological systems database}},
  booktitle={Proc. Interspeech 2013},