Spectral Subtraction for Speech Enhancement and Compression Using LPC
Journal Title: International Journal of Computer Science & Engineering Technology - Year 2015, Vol 6, Issue 12
Abstract
Pre-Processing of Speech Signal is very crucial in the applications where silence or background noise is completely undesirable. The degradation of speech due to the presence of noise causes severe difficulties in various communication environments. Therefore, in this paper it is needed to first apply a noise removal and silence removal methods, in order to detect” clean” speech segments. Then using that clean speech the compression process was performed using the most powerful compression technique such as Linear Predictive Coding (LPC). Here different samples of spoken words are collected from different speakers and are used for implementation. The samples which is denoised, silence removed and compressed were compared with the samples which is not denoised but silence removed and compressed using LPC. Finally the results were evaluated in terms of compressed ratio (CR), Peak signal-to-noise ratio (PSNR) and Normalized root-mean square error (NRMSE).Finally the result show that the samples which is denoised, silence removed and compressed gives better result than the other samples.
Authors and Affiliations
Dr. D. Ambika , A. Deepa , P. Sumathi
Keywords
Related Articles
- EP ID EP148842
- DOI -
- Views 116
- Downloads 0
Personalized Collaborative News Recommendation
With the evolution of World Wide Web many conveniences came to our way, but along with these facilities came some challenges like unlimited information resources and a large corpus of online data. Recommendation Systems...
Indutrialization of IT Services in Banking
Industrialization is the modernization of processes/activities through advancement in social, economic and technology. From last couple of years, banks have been focusing on rapid growth. As organizations launched new pr...
A Theoretical Analysis of Different Hacking Techniques in Wireless Networks
Over the course of past few decades to today's world, even though the usage of computers is increasing rapidly, the users hesitate to store their personal information in their computers because of the security issues of...
A Protocol for Reducing Routing Overhead in Mobile Ad Hoc Networks
In a mobile ad hoc network (MANET), frequent link breakage occures due to mobility of nodes which leads to frequent route discoveries. This overhead of route discovery cannot be tolerated. Broadcasting is a fundamental d...
An Effective Approach for Web Document Classification using FP-Growth and Naïve Bayes Techniques
Exponential growth of the web increased the importance of web documents classification and data mining. To get the exact information, in the form of knowing what classes a web document belongs to, is expensive. Automatic...