A NOVEL METHOD OF COMPRESSING SPEECH WITH HIGHER BANDWIDTH EFFICIENCY

INTRODUCTION:

Today, rapid speech transmission has become critical in many applications. With more quality being demanded by the end-user, and an increase in bandwidth usage, the delivery of audio and allied applications on demand cannot be left behind.

In this paper, we wish to present a new algorithm for speech compression using the frequency domain approach.

The same method has also been used in the compression of static images also ....etc

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Abstract
Bidirectional flexure analysis of functionally graded (FG) plate integratedwith piezoelectric fiber reinforced composites (PFRC) is presented in this paper. A higher order shear and normal deformation theory (HOSNT12) is used to analyze such hybrid or smart FG plate subjected to electromechanical loading. The displacement function of the present model is approximated as Taylor’s series in the thickness coordinate, while the electro-static potential is approximated as layer wise linear through the thickness of the PFRC layer ....etc

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Abstract

This paper illustrates a novel method of speech compression and transmission. This method saves the transmission bandwidth required for the speech signal by a considerable amount. This scheme exploits the property of low pass nature of the speech signal. Also this method applies equally well for any signal, which is low pass in nature, speech being the more widely used in Real Time Communication, is highlighted here.

As per this method, the low pass signal (speech) at the transmitter is divi ....etc

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presented by:
Partha Sarathi Bhattacharjee


The world is fast moving from a stage where steel and miles of railways were important, to a stage where, the size and complexity of information and communication systems will be the barometer of a country’s development. No country or individual can continue to afford to remain in isolation and ignore rapid developments in the field of information and communication technology. This so called “Information Society” has its genesis in the post industrial ar ....etc

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THEORETICAL STUDY OF HIGHER ORDER NONCLASSICALITY IN INTERMEDIATE STATES



1 Introduction

A state of light is called nonelassieal, if its Glauber Sudarshan P function is negative or more singular than a delta function . In these situations quasi probability distribution P is not accepted as classical probability and thus one can not obtain an analogous classical state. For example, squeezed state and antibunched state are well known nonelassieal states. These two lowest order nonelassieal states have ....etc

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This uses a novel method of speech compression and transmission. This method saves the transmission bandwidth required for the speech signal by a considerable amount. This scheme exploits the property of low pass nature of the speech signal. Also this method applies equally well for any signal, which is low pass in nature, speech being the more widely used in Real Time Communication, is highlighted here.

As per this method, the low pass signal (speech) at the transmitter is divided into set of packets, each containing, say N number of sample ....etc

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Development of a Lost Articles and Letters Reconciliation System

A Post Office wants to improve its efficiency by delivering the lost letters and lost articles (which are sent in parcels) in a short period of time. Currently it takes about 3 months for a lost letter or a lost article to reach the correct destination. A machine reads addresses on letters. The ones, which could not be read by machine, are sorted by human intervention. Even after this, the ....etc

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