ELRA - U-S0327 : Italian SpeechDat(II) MDB-250

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Catalog Reference : U-S0327

Italian SpeechDat(II) MDB-250

The Italian SpeechDat(II) MDB-250 comprises 375 Italian speakers recorded over the Italian mobile telephone network.

The speech databases made within the SpeechDat(II) project were validated by SPEX, the Netherlands, to assess their compliance with the SpeechDat format and content specifications.

Speech samples are stored as sequences of 8-bit 8 kHz A-law. Each prompted utterance is stored in a separate file. Each signal file is accompanied by an ASCII SAM label file which contains the relevant descriptive information.

Each speaker uttered the following items:
- 2 isolated digits
- 1 sequence of 10 isolated digits
- 4 connected digits: 1 prompt sheet number (5+ digits), 1 telephone number (9-11 digits), 1 credit card number (14-16 digits), 1 PIN code (6 digits)
- 3 dates: 1 spontaneous date (e.g. birthday), 1 prompted date (word style), 1 relative and general date expression.
- 1 word spotting phrase using an application word (embedded).
- 6 application words
- 3 spelled words: 1 spontaneous name (own forename), 1 city name, 1 real / artificial word for coverage.
- 1 Lira currency money amount.
- 1 natural number.
- 7 directory assistance names: 1 spontaneous name (own forename), 1 city of birth / growing up (spontaneous), 2 most frequent cities (set of 25), 2 most frequent company / agency (set of 25), 1 "forename surname" (set of 150 "full" names)
- 2 questions including "fuzzy" yes / no: 1 predominantly "Yes" question, 1 predominantly "No" question.
- 9 phonetically rich sentences.
- 2 time phrases: 1 time of day (spontaneous), 1 time phrase (word style).
- 4 phonetically rich words.
5 more items were added to the Italian corpus (4 spontaneous, 1 read).
The following age distribution has been obtained: 3 speaker are below 16 years old, 147 speakers are between 16 and 30, 149 speakers are between 31 and 45, 56 speakers are between 46 and 60, 48 speakers are over 60.
A pronunciation lexicon with a phonemic transcription in SAMPA is also included.

ISLRN : 565-390-047-537-0

Production

Project : SpeechDat(II)

Contents

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speech corpus
Language(s) : Italian
Duration : About 105h, for 76543 .ITA files
Quantisation : 8-bit
Signal Encoding : A-law
TEXT_CLIPPING_RATE_PERCENTAGE8 kHz
Source Channel : Telephone