14thAnnual Conference of the International Speech Communication Association

Lyon, France
August 25-29, 2013

LAPSyD: Lyon-Albuquerque Phonological Systems Database

Ian Maddieson (1), Sébastien Flavier (2), Egidio Marsico (2), Christophe Coupé (2), François Pellegrino (2)

(1) University of New Mexico, USA
(2) DDL (UMR 5596), France

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.

Full Paper

Bibliographic reference.  Maddieson, Ian / Flavier, Sébastien / Marsico, Egidio / Coupé, Christophe / Pellegrino, François (2013): "LAPSyd: lyon-albuquerque phonological systems database", In INTERSPEECH-2013, 3022-3026.