Lithuanian Speech Recognition Using the English Recognizer

Lithuanian Speech Recognition Using the English Recognizer

The present work is concerned with speech recognition using a small or medium size vocabulary. The possibility to use the English speech recognizer for the recognition of Lithuanian was investigated. Two methods were used to deal with such problems: the expert-driven (knowledgebased) method and the data-driven one. Phonological systems of English and Lithuanian were compared on the basis of the...

English Talking Head Adaptation for Lithuanian Speech Animation

Visual speech animation plays an important role in human-computer interaction. To force already existing English Talking Head speech animation engine to talk Lithuanian, some modifications to the animation script were made. For this adaptation, the relation between English and Lithuanian languages was explored. To determine it, 30 3dimensional Lithuanian visemes were modeled using the calibrati...

Building Medium-Vocabulary Isolated-Word Lithuanian HMM Speech Recognition System

In this paper, the opening work on the development of a Lithuanian HMM speech recognition system is described. The triphone single-Gaussian HMM speech recognition system based on Mel Frequency Cepstral Coefficients (MFCC) was developed using HTK toolkit. Hidden Markov model’s parameters were estimated from phone-level hand-annotated Lithuanian speech corpus. The system was evaluated on a speake...

Isolated English Letter Speech Recognition

Voice Activity Detection Using Speech Recognizer Feedback

This paper demonstrates how feedback from a speech recognizer can be leveraged to improve Voice Activity Detection (VAD) for online speech recognition. First, reliably transcribed segments of audio are fed back by the recognizer as supervision for VAD model adaptation. This allows the much stronger LVCSR acoustic models to be harnessed without adding computation. Second, when to make a VAD deci...