Chapter 3

Voice Activity Detection Using Contextual Information for Robust Speech Recognition

J. Ramirez and J. M. Gorriz

Abstract

Emerging applications in the field of speech processing are demanding increasing levels of performance in noise adverse environments. These systems often require a noise reduction scheme working in combination with a precise voice activity detector (VAD). This chapter shows an overview of the main challenges in robust speech detection and a review of the state of the art and applications. Experimental results show the effectiveness of VADs using contextual information when compared to recently reported algorithms.

Total Pages: 30-45 (16)

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