ASJ Continuous Speech Corpus for Research (ASJ-JIPDEC)

Producer, Project

Speech Database Committee, Acoustical Society of Japan
Intelligent Speech Processing Research Committee, Japan Information Processing Development Center
AI Fuzzy Promotion Center, Japan Information Processing Development Center


Vols. 1-3: Read speech of phonetically balanced sentences

Vols. 4-6: Read speech of transcribed text of played dialogues (16 sets)

Vol. 7: Played dialogues (37 dialogues)


Vols. 1-3: 64 speakers (30 males and 34 females).

Vols. 4-6: 36 speakers (18 males and 18 females).

Vol. 7: 37 speakers (29 males and 8 females).

Speech file format

RAW format (16 kHz, 16 bit (partly 12 bit), Mono, BigEndian)

Distribution media

1 CD-ROM for each volume


For research purpose only


540 yen per volume plus service charge including postage 1080 yen.

4860 yen for a set of 7 volumes including consumption tax.

Further information

PDF file


This corpus was distributed by NTT Advanced Technology Corporation (NTT-AT) before April 1, 2006.

Speech sample for test listening

Go to corpora list