• Abhi J. Patel
• Akhil Patel
• Prof Kaushal Gor

To be able to control devices by voice had always intrigued mankind. Today after intense research, Speech Recognition System, has made a niched for themselves and can be sown in many walks of life. The accuracy of Speech Recognition System remained one of the most important research challenges e.g. noises, speaker variability, language variability, vocabulary size and domain. The design of speech recognition system required careful attentions to the challenging such as various types of Speech Classes and Speech Representations, Speech Pre-processing stages, Feature Extraction techniques, Database and Performance evaluations. This paper present the advances made as well as highlights the pressing problems for a speech recognition system. The paper also classified the system into Front-End and Back-End for better understanding and representation of speech recognition system in each part.

Acoustic model, Feature Extraction, Hidden Markov Model, Neural Networks.

"A Study of Speech Recognition", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.1224-1227, May-2019, Available :http://www.jetir.org/papers/JETIR1905S83.pdf

"A Study of Speech Recognition", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp1224-1227, May-2019, Available at : http://www.jetir.org/papers/JETIR1905S83.pdf