Introduction

The Japanese Electronic Industry Development Associations (JEIDA) Common Speech Data Corpus (JCSD) was prepared by Jonathan Hamaker, Richard J. Duncan and Joe Picone of the Institute for Signal and Information Processing at Mississippi State University.

Data

This collection consists of high-fidelity recordings of 150 native speakers of Japanese each speaker produces four repetitions of 323 short prompts, including city names, control words, monosyllabic words, isolated digits and strings of four digits. Each reading session was recorded with two microphones, yielding two channels that differ in audio quality for each utterance. Channel 0 (LDC96S64) contains data recorded with a standard dynamic microphone---a Sanken MU-2C microphone. Channel 1 (LDC96S65) contains data recorded simultaneously with a condenser microphone that presumably varied from site to site and is available separately.

A summary of the size and content of the corpus is given below:

 number of speakers 150 speakers
 males 75
 females 75
 range of speaker age 10 yrs. to 70 yrs.

 number of items per speaker 323 items
 isolated digits 15
 four digit sequences 35
 city names 100
 monosyllables 110
 control words (set A) 13
 control words (set B) 24
 control words (set C) 26

 number of repetitions per item 4 repetitions
 total number of utterances 193,763 utterances (per channel)

 sample frequency 16 kHz
 sample type 16-bit linear
 number of microphones 2 (dynamic and condenser)
 

For purposes of publication by the LDC, the corpus has been organized onto 40 CD-ROMs the partitioning of the data files have been done primarily by channel (20 CD-ROMs each for channel 0 and channel 1) and secondarily by category of prompts. These prompts include:

 Description Number of items

 Control Words:
 Banking Services 13
 Word Processors 24
 Home Electronic Equipment 26

 Digits:
 Isolated Digits 15
 Four Digit Sequences 35

 City Names: 100
 a phonetically-rich subset 
 of common Japanese city names

 Monosyllables: 110
 all Japanese monosyllables plus 
 several used to pronounce 
 foreign words
 

JEIDA/JCSD-Channel 0 and JEIDA/JCSD-Channel 1 can each be ordered as complete sets. Components of the corpus can also be purchased as outlined below:

 Price Set-of DescriptionCatalog ID 
 
 2000 20 JEIDA/JCSD-Channel 0 (Complete) LDC96S64
 600 6 JEIDA/JCSD-Channel 0 City Names LDC96S64-1
 400 4 JEIDA/JCSD-Channel 0 Control Words LDC96S64-2
 100 1 JEIDA/JCSD-Channel 0 Isolated Digits LDC96S64-3
 300 3 JEIDA/JCSD-Channel 0 Four Digit Seq. LDC96S64-4
 600 6 JEIDA/JCSD-Channel 0 Monosyllables LDC96S64-5

 2000 20 JEIDA/JCSD-Channel 1 (Complete) LDC96S65
 600 6 JEIDA/JCSD-Channel 1 City Names LDC96S65-1
 500 4 JEIDA/JCSD-Channel 1 Control Words LDC96S65-2
 100 1 JEIDA/JCSD-Channel 1 Isolated Digits LDC96S65-3
 300 3 JEIDA/JCSD-Channel 1 Four Digit Seq. LDC96S65-4
 600 6 JEIDA/JCSD-Channel 1 Monosyllables LDC96S65-5
 

Updates

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