Speech Processing with Adaptive Cascaded Median Based Noise Estimation

Jain, Sandesh; Nitnaware, Dr. Dhiraj

ISBN 10: 3659926000 / ISBN 13: 9783659926006

Published by LAP LAMBERT Academic Publishing, 2016

About this Item

Seller Inventory # 26394692233

Bibliographic Details

• Title: Speech Processing with Adaptive Cascaded Median Based Noise Estimation
• Publisher: LAP LAMBERT Academic Publishing
• Publication Date: 2016
• Language: English
• ISBN 10: 3659926000
• ISBN 13: 9783659926006
• Binding: Soft cover
• Condition: New

About this title

Synopsis

This book provides an extensive study of available literature on various filtering techniques used for speech enhancement. In this book, a new method is introduced for improvement of speech distorted by acoustic noise which is based on spectral subtraction technique. Here, noise estimation is done through a new proposed algorithm based on adaptive cascaded median filter. The developed model results in elimination of musical noise which is introduced by conventional cascaded median filter. This algorithm is tested on various noisy speech samples taken from NOIZEUS database sampled at 8 kHz and then processed using a hamming window of length 250 ms with an overlap size of 128 ms. Moreover, this algorithm is also capable of tackling the non-stationary nature of noise. Various listening tests were performed in order to judge the quality and intelligibility. For the performance analysis of the given model, the parameters selected are root mean square error (MSE) and perception evaluation of speech quality (PESQ) scores. The developed algorithm shows an improvement of 20-55 % in PESQ scores over CCM filter.

About the Author

Sandesh Jain is working as Assistant Professor in Medicaps University Indore. He is pursuing M.E. under the guidance of Dr. Dhiraj Nitnaware Assistant Professor in Electronics and Telecommunication Department, Institute of Engineering & Technology (IET), DAVV, Inodre.