This article presents an overview of the POLYCOST database dedicated to spe
aker recognition applications over the telephone network. The main characte
ristics of this database are: medium mixed speech corpus size (>100 speaker
s), English spoken by foreigners, mainly digits with some free speech, coll
ected through international telephone lines, and minimum of nine sessions f
or 85% of the speakers. (C) 2000 Published by Elsevier Science B.V. All rig
hts reserved.