SpeakerKate Knill
DateFeb 14, 2014
Time11:00AM 12:00PM
LocationIF 4.31/4.33
TitleInvestigation of multilingual speech-to-text systems for use in spoken term detection
AbstractThe development of high-performance speech processing systems for low-resourcelanguages is a challenging research area. One approach to address the lack ofresources is to make use of data from multiple languages. A popular directionin recent years is to use bottleneck features or hybrid systems trained onmultilingual data for speech-to-text (STT) systems. This talk presents anoverview of these approaches for STT, and their performance for both speechrecognition and spoken term detection. Experiments will be presented based onthe IARPA Babel limited language pack corpora (10 hours/language) using 7 languagesfor multilingual system development and 3 held-out target languages.

BioDr Kate Knill is currently a Senior Research Associate at Cambridge Universityworking on the BABEL and RATS projects. She has over 20 years experience inspeech recognition and speech synthesis. From 1993 to 1996, she was a ResearchAssociate in the Speech Vision and Robotics Group in the Engineering Departmentat Cambridge University working on audio document retrieval, supervised byProf. Steve Young and funded by HP Labs, Bristol. She joined the Speech R &D team of Nuance Communications in 1997. As Languages Manager (2000 - 2002), sheled a cross-site team that developed over 20 languages for speech recognitionand speaker verification. In 2002, she established a new Speech TechnologyGroup at Toshiba Research Europe, Cambridge Research Laboratory (CRL), Cambridge,U.K. As Assistant Managing Director and Speech Technology Group Leader she wasresponsible for interactive technology, in particular core speech recognitionand synthesis R & D and development of European and North American speechproducts. The Cambridge team led the creation of new speech recognition andspeech synthesis engines for Toshiba for which Kate served as project lead acrosssites in the UK, Japan and China. She is currently a member of the ISCA Boardand an Area Chair for Interspeech 2014.


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