ELRA - ELRA-U-S 0074 : LILA Speech Database for Hindi

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Catalog Reference : ELRA-U-S 0074

LILA Speech Database for Hindi

The LILA Hindi-L1 database collected in India was recorded within the scope of the LILA project. It contains the recordings of 2,030 Hindi speakers (1,012 males and 1,018 females, all speakers with Hindi as first language) recorded over the Indian mobile telephone network.

The following acoustic conditions were selected as representative of a mobile user's environment (some speakers were recorded in several environments):
- Passenger in moving car, railway, bus, etc. (297 speakers)
- Public place (299 speakers)
- Stationary pedestrian by road side (305 speakers)
- Home/office environment (719 speakers)
- Passenger in moving car using a hands-free kit (410 speakers)

The speech files are stored as sequences of 8-bit, 8kHz A-law speech files and are not compressed, according to the specifications of LILA. Each prompt utterance is stored within a separate file and has an accompanying ASCII SAM label file.

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

Each speaker uttered the following items:
- 2 isolated digits
- 1 sequence of 10 isolated digits
- 7 connected digits (2 sheet numbers -5+ digits, 2 read telephone numbers –9/11 digits, 1 credit card number –14/16 digits, 1 PIN code -6 digits, 1 spontaneous telephone number)
- 1 natural number
- 1 currency money amount
- 2 yes/no questions (1 predominantly “yes” question, 1 predominantly “no” question)
- 3 dates (1 spontaneous date e.g. birthday, 1 word style prompted date, 1 relative and general date expression)
- 2 time phrases (1 spontaneous time of day, 1 word style time phrase)
- 6 application words (out of a set of 30)
- 1 spotting phrase using an embedded application word
- 5 directory assistance names (1 spontaneous, e.g. own surname, 1 city of birth/growing up, 1 most frequent city out of a set of 500, 1 most frequent company/agency out of a set of 500, 1 “forename surname” out of a set of 150 )
- 3 spelled words (1 surname, 1 directory assistance city name, 1 real/artificial name for coverage)
- 1 “silence word”
- 4 phonetically rich words
- 13 phonetically rich sentences
- 7 spontaneous items for control

The following age distribution has been obtained: 965 speakers are between 16 and 30, 645 speakers are between 31 and 45, and 420 speakers are between 46 and 60.

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

ISLRN : 997-510-994-802-5

Production

Project : LILA

Applications

	Applications possible : Speech recognition#Voice control#Automatic speech recognition

Contents

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speech corpus
Language(s) : Hindi
Source Channel : Telephone
Speech Acquisition Interface : Telephone
Speech Acquisition Mode : Acoustic