%0 Journal Article
%T A Review on Speech Recognition Challenges and Approaches
%A Vimala.C
%A V.Radha
%J World of Computer Science and Information Technology Journal
%D 2012
%I 
%X Speech technology and systems in human computer interaction have witnessed a stable and remarkable advancement over the last two decades. Today, speech technologies are commercially available for an unlimited but interesting range of tasks. These technologies enable machines to respond correctly and reliably to human voices, and provide useful and valuable services. Recent research concentrates on developing systems that would be much more robust against variability in environment, speaker and language. Hence today¡¯s researches mainly focus on ASR systems with a large vocabulary that support speaker independent operation with continuous speech in different languages. This paper gives an overview of the speech recognition system and its recent progress. The primary objective of this paper is to compare and summarize some of the well known methods used in various stages of speech recognition system.
%K Speech Recognition
%K Feature Extraction
%K MFCC
%K LPC
%K Hidden Markov Model
%K Neural Network
%K Dynamic Time Warping.
%U http://www.wcsit.org/pub/2012/vol.2.no.1/A%20Review%20on%20Speech%20Recognition%20Challenges%20and%20Approaches.pdf