Robust Adaptation to Non-Native Accents in Automatic Speech Recognition
Overview
Speech recognition technology is being increasingly employed in human-machine interfaces. A remaining problem however is the robustness of this technology to non-native accents, which still cause considerable difficulties for current systems.
In this book, methods to overcome this problem are described. A speaker adaptation algorithm that is capable of adapting to the current speaker with just a few words of speaker-specific data based on the MLLR principle is developed and combined with confidence measures that focus on phone durations as well as on acoustic features. Furthermore, a specific pronunciation modelling technique that allows the automatic derivation of non-native pronunciations without using non-native data is described and combined with the previous techniques to produce a robust adaptation to non-native accents in an automatic speech recognition system.
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Details
- ISBN-13: 9783540003250
- ISBN-10: 3540003258
- Publisher: Springer
- Publish Date: December 2002
- Dimensions: 9.32 x 6.32 x 0.39 inches
- Shipping Weight: 0.56 pounds
- Page Count: 146
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