PRESERVING QUALITY WHILE COMPRESSING THE VOLUME OF AUDIO AND VIDEO DATA

Abstract

High data quality at lowbit rateis an essential goal that people want to achieve. It is necessary to transfer data atlow bit rate so that the bandwidth of the medium can be utilized efficiently. In most of the speech coding techniques the goal of low bit rate transfer is achieved but the data quality is affected badly. The proposed technique is an attempt to improve the data quality at low bit rate as well as fast transmission of data. The proposed technique protects the data quality by applying Linear Predictive Coding-10 and achieves the low bit rate by applying Quadrature Mirror Filter. Acomprehensive analysis is on the basis of given parameters as size, compression time, Signal to Noise Ratio, power, energy, power in air, energy in air, mean, standard deviation and intensity.