publication . Part of book or chapter of book . 2007

Voice Activity Detection. Fundamentals and Speech Recognition System Robustness

Ramirez, J.; Gorriz, J. M.; Segura, J. C.;
Open Access
  • Published: 01 Jun 2007
  • Publisher: I-Tech Education and Publishing
Abstract
An important drawback affecting most of the speech processing systems is the environmental noise and its harmful effect on the system performance. Examples of such systems are the new wireless communications voice services or digital hearing aid devices. In speech recognition, there are still technical barriers inhibiting such systems from meeting the demands of modern applications. Numerous noise reduction techniques have been developed to palliate the effect of the noise on the system performance and often require an estimate of the noise statistics obtained by means of a precise voice activity detector (VAD). Speech/non-speech detection is an unsolved problem...
Subjects
free text keywords: Environmental noise, Speech processing, Voice activity detection, Background noise, Speech recognition, Engineering, business.industry, business, Pitch detection algorithm, Speech enhancement, Speech coding, Robustness (computer science)
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