Ravi Kumar. K

Work place: Lakireddy Balireddy Engineering College, Mylavaram, 521230, India

E-mail: 2k6ravi@gmail.com


Research Interests: Speech Recognition, Speech Synthesis


Ravi Kumar Kandagatla was born in Markapur, India in 1988. He received the Bachelor of Technology degree from Jawaharlal Nehru Technological University, Kakinada in 2009 and received Master of Technology in Digital Electronics and Communication Systems from Jawaharlal Nehru Technological University, Kakinada in 2011. He is presently working as Assistant professor in Lakireddy Balireddy College of Engineering, Mylavaram, India. He has 4 years of teaching experience. He has 2 International publications. His interest area of research is speech processing.

Author Articles
A Survey on Speech Enhancement Methodologies

By Ravi Kumar. K P.V. Subbaiah

DOI: https://doi.org/10.5815/ijisa.2016.12.05, Pub. Date: 8 Dec. 2016

Speech enhancement is a technique which processes the noisy speech signal. The aim of speech enhancement is to improve the perceived quality of speech and/or to improve its intelligibility. Due to its vast applications in mobile telephony, VOIP, hearing aids, Skype and speaker recognition, the challenges in speech enhancement have grown over the years. It is more challenging to suppress back ground noise that effects human communication in noisy environments like airports, road works, traffic, and cars. The objective of this survey paper is to outline the single channel speech enhancement methodologies used for enhancing the speech signal which is corrupted with additive background noise and also discuss the challenges and opportunities of single channel speech enhancement. This paper mainly focuses on transform domain techniques and supervised (NMF, HMM) speech enhancement techniques. This paper gives frame work for developments in speech enhancement methodologies.

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