Multilingual Speech Database
(World City Names)

Feature

Suitable speech materials for the research on language identification and performance evaluation for speech recognition terminals.

Price

400,000 JP Yen for one set of CD-ROM disks (4 disks) for an overseas mailing address.
Note: Clients are requested to pay their domestic tax or custom duty by themselves.

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Specification

Talkers

Maximally, 168 speakers *articulate the same city names according to their native pronunciation.

Their native languages are;
American English, Arabic, Chinese (Mandarin), Dutch, English (British), Finnish, French, German, Greek, Hungarian, Hindi, Indonesian, Italian, Japanese, Korean, Polish, Portuguese (Brazilian), Russian, Spanish, Swedish, Thai.

For each language, 4 male and 4 female speakers were allocated.

City Names

Two hundred famous cities where international air ports are located.

Speakers articulate the same set of 200 city names according to their own native pronunciation.

*Note: Since some material was omitted due to faltering pronunciation, the number of talkers is about 20 less than this number for some cities.

Recording conditions

Conforming to the ITU-T Recommendation P.80.
Digital recording and editing machines were used. (The same as our product "Multilingual Speech Database for Telephonometry 1994".)

Media

All speech signals are recorded on CD-ROM disks as the PC binary files (little endian Byte order) according to ISO9660 format.
Sampling Rate: 16 kHz
Amplitude resolution: 16 bits
Clients can retrieve the quantized speech signal by PC with a CD-ROM drive.

Notes: The files in the CD-ROM disks are not in the Windows wave format; clients can not reproduce them by the ordinary PC sound board without a format conversion. The files also can not be played back as an audible signal by a commercial CD player.