UCLA Phonological Segment Inventory Database

Last updated January 11, 2026

The UCLA Phonological Segment Inventory Database (or UPSID) is a statistical survey of the phoneme inventories in 451 of the world's languages. The database was created by American phonetician Ian Maddieson for the University of California, Los Angeles (UCLA) in 1981 to 1984 and has been updated several times.

Bibliography

Maddieson, Ian. (1984). Patterns of sounds. Cambridge studies in speech science and communication. Cambridge: Cambridge University Press.

External links

This phonology article is a stub. You can help Wikipedia by expanding it.

This database-related article is a stub. You can help Wikipedia by expanding it.

This article about historical linguistics is a stub. You can help Wikipedia by expanding it.

This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.

UCLA Phonological Segment Inventory Database

Contents

See also

Bibliography

External links