Automatic speech recognition (ASR) systems are finding increasing use in everyday life. Many of the commonplace environments where the systems are used are noisy, for example users calling up a voice search system from a busy cafeteria or a street. This can result in degraded speech recordings and adversely affect the performance of speech recognition systems. As the use of ASR systems increases, knowledge of the state-of-the-art in techniques to deal with such problems becomes critical to system and application engineers and researchers who work with or on ASR technologies. This book presents a comprehensive survey of the state-of-the-art in techniques used to improve the robustness of speech recognition systems to these degrading external influences. Key features: * Reviews all the main noise robust ASR approaches, including signal separation, voice activity detection, robust feature extraction, model compensation and adaptation, missing data techniques and recognition of reverberant speech. * Acts as a timely exposition of the topic in light of more widespread use in the future of ASR technology in challenging environments. * Addresses robustness issues and signal degradation which are both key requirements for practitioners of ASR. * Includes contributions from top ASR researchers from leading research units in the field
Publisher: John Wiley & Sons Inc
Number of pages: 514
Weight: 918 g
Dimensions: 247 x 175 x 30 mm
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