Abstract
India possesses a large variety of languages and dialects spoken in different parts of the country. These languages possess some unique linguistic, phonological, and phonetic properties different from European languages. Research is being done in several of Indian languages—such as Hindi, Bangla, etc. to study the articulatory, acoustic—phonetic and prosodic nature for the purpose of creating standards of phonetic representation of phonemes and Pronunciation Lexicon in Indian Languages. Comprehensive and task specific language corpora, speech databases in laboratory as well as in mobile communication situation and the tools/technics required for processing of speech signals are being developed. The emphasis is on developing multilingual human-machine interaction systems. Some of the recently developed systems include multi-lingual speech recognition system for voice enabled services, multilingual text to speech synthesis system, speaker and language identification system for general purpose and forensic applications. Recognition of emotions in spoken speech, spoken language translation system, etc. The paper presents an overview of such studies conducted in various laboratories, academic institutions, and industries in India pertaining to these areas. The technologies used for data collection, processing, and recognition/ synthesis, etc., utilized and status of the development have been mentioned.
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