S0092 : Portuguese SpeechDat(II) FDB-4000

The Portuguese SpeechDat(II) FDB-4000 database contains the recordings of 4,027 Portuguese speakers (1,861 males, 2,166 females) recorded over the Portuguese fixed telephone network. This database is partitioned into 11 CDs.

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.

This speech database was validated by SPEX (the Netherlands) to assess its compliance with the SpeechDat format and content specifications.

Each speaker uttered the following items:

• 1 isolated single digit
• 1 sequence of 10 isolated digits
• 4 connected digits (1 sheet number -5 digits, 1 telephone number –9/11 digits, 1 credit card number –14/16 digits, 1 PIN code -6 digits)
• 1 currency money amount
• 1 natural number
• 3 dates (1 spontaneous date e.g. birthday, 1 prompted date, 1 relative or general date expression)
• 2 time phrases (1 spontaneous time of day, 1 word style time phrase)
• 3 spelled words (1 spontaneous e.g. own forename, 1 city name, 1 real word for coverage)
• 5 directory assistance names (1 spontaneous e.g. own forename, 1 city of birth/growing up, 1 frequent city name, 1 frequent company name, 1 common forename and surname)
• 2 yes/no questions (1 predominantly "yes" question, 1 predominantly "no" question)
• 3 application words
• 1 keyword phrase using an embedded application word
• 4 phonetically rich words
• 9 phonetically rich sentences

The following age distribution has been obtained: 241 speakers are under 16, 1404 speakers are between 16 and 30, 1532 speakers are between 31 and 45, 711 speakers are between 46 and 60, and 139 speakers are over 60.

A pronunciation lexicon with a phonemic transcription in SAMPA is also included.