DIGITAL GENERIC DATA COMPRESSION ALGORITHMS USING MATLAB
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 2015, Vol 4, Issue 4
Abstract
Generic data compression algorithms is an area of digital processing that is focusing on reducing bit rate of the speech signal for transmission or storage without significant loss of quality. The focus of this paper is to compress the digital speech using wavelet transform. The main idea behind the generic data compression algorithms is to represent uncompressed speech with minimum number of bits and optimum speech quality. Wavelet transform has been recently proposed for signal analysis. The wavelet transform is useful to remove redundancies and irrelevancies present in the speech signal for the compact representation. The classical subband coding method also known as filter bank method is used in which signal is decomposed into basis of wavelet functions using high pass and low pass filters. Speech coding is a lossy scheme and is implemented here to compress one-dimensional speech signal. Basically, this scheme consists of three operations which are the transform, threshold techniques (by level and global threshold), and run-length encoding operations. Finally the compressed signal is reconstructed. The generic data compression algorithms using filter bank method is implemented and simulated by using wavelet transform algorithm for different wavelets such as Haar, Daubechies series (Daub-4, Daub-6, Daub-8, Daub-12, Daub-16 Daub-32 Daub-64) and bi-orthogonal wavelet.
Authors and Affiliations
Krishnaraja Prabhu, Dr. T. V. U. Kiran Kumar, Mr. B. Karthik
Keywords
Related Articles
- EP ID EP122081
- DOI -
- Views 69
- Downloads 0
Detection of Computer Viruses using WELM_ FGA_FFP
Computer viruses are big threat for our society .The expansion of various new viruses of varying forms make the prevention quite tuff. Here we proposed WELM_FGA_FFP to detect computer viruses. The proposed method...
VHDL IMPLEMENTATION OF HIGH SPEED AXI2.0 PROTOCOL WITH DDR3 CONTROLLER
This paper proposes the implementation of AXI 2.0 protocol which removes the limitation of communication architecture, which would otherwise reduce the speed of data transfer in System - on - Chip (SoC). We have...
Minimization of the Fire Accidents in Automobiles by Automatic Spraying of Fire Retards and Utilization of a Fire Fighting Robot
Automobiles are the necessary medium for the purpose of the transportation from many decades. There are drastic changes in the automobiles which are doing services for the mankind on our own basis. Travelers expec...
On the Heptic Non-Homogeneous Equation with Four Unknowns xy(x+y) + zw6 =0
The heptic non-homogeneous equation with four unknowns represented by the diophantine equation ( ) 2 0 6 xy x + y + zw = is analyzed for its patterns of non-zero distinct integral solutions and two different me...
FRICTION STIR WELDING AND ITS RELATED PARAMETER: A REVIEW
Friction stir welding is an advanced solid state joining technique, widely being used in various applications for joining aluminum alloys in aerospace, marine automotive and many other applications of profitable i...