LILA Hindi Belt database
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Base de données LILA « Hindi Belt » (« ceinture hindi »)
The LILA Hindi Belt database collected in India was recorded within the scope of the LILA project. It contains the recordings of 2,023 Hindi speakers (1,011 males and 1,012 females, all speakers with Hindi as first language) recorded over the Indian mobile telephone network. Five dialectal regions have been selected as best representing major Hindi variants in the Hindi belt, focusing on the capital New Delhi. The regions are: Delhi, Northern Uttar Pradesh, Awadh, Rajasthan and central India.
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. (311 speakers)
- Public place (300 speakers)
- Stationary pedestrian by road side (300 speakers)
- Home/office environment (712 speakers)
- Passenger in moving car using a hands-free kit (400 speakers)
This database is distributed as 1 Hard Disk. 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 pre-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
- 2 sequence of 10 isolated digits
- 7 connected digits (1 sheet number -5+ digits, 2 read and 1 spontaneous telephone numbers –9/11 digits, 2 credit card number –14/16 digits, 1 PIN code -6 digits)
- 2 natural numbers
- 2 currency money amounts
- 2 yes/no questions (1 predominantly “yes” question, 1 predominantly “no” question)
- 4 dates (1 spontaneous date e.g. birthday, 2 word style prompted date, 1 relative and general date expression)
- 3 time phrases (1 spontaneous time of day, 2 word style time phrases)
- 6 application words (out of a set of 30)
- 2 spotting phrases using an embedded application word
- 7 directory assistance names (1 spontaneous, e.g. own forename, 1 city of birth/growing up, 2 most frequent cities, 2 most frequent company/agency, 1 “forename surname”)
- 7 spelled words (1 forename, 3 directory assistance city names, 3 real/artificial names for coverage)
- 1 “silence word”
- 6 phonetically rich words
- 15 phonetically rich sentences
- 5 spontaneous items for control
- 10 extra items (Forename Surname, international cities & countries, political parties, VIPs, sports persons, sports teams & horses, ordinals, city names, regions, company names)
The following age distribution has been obtained: 795 speakers are between 16 and 30, 701 speakers are between 31 and 45, and 527 speakers are between 46 and 60.
A pronunciation lexicon with a phonemic transcription in SAMPA is also included.
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