S0055 : Russian SpeechDat-like FDB-1000

This Russian SpeechDat-like FDB-1000 database contains the recordings of 1,000 speakers (500 males, 500 females) for 5 different regions, but mainly from Moscow and St. Petersburg (803 speakers), recoded over the fixed telephone network.

The database is partitioned into 4 CD-ROMs. Speech samples are stored as sequences of 8 bits 8 kHz A-law, and the data are stored in a SAM file format.

The whole database consists of 72 hours of speech, with approx. 49 prompted utterances per speaker.

It was validated and accepted according to the SpeechDat(II) database exchange format.

Each speaker uttered the following items:

• Isolated and connected digits
• Natural numbers
• Money amounts
• Spelled words
• Time and date phrases
• Yes/no questions
• City names
• Common application words
• Application words in phrases
• Phonetically rich sentences

The following age distribution has been obtained: 16 speakers are under 16, 340 speakers are between 16 and 30, 345 speakers are between 31 and 45, 255 speakers are between 46 and 60, and 44 speakers are over 60.

The database is provided with orthographic transliteration for all 48,812 utterances including 4 categories of non-speech acoustic events. A phonetic lexicon with canonical pronunciation is also provided.