Seminar Report on Audio Compression


INTRODUCTION

Large storage requirements limit the amount of audio data that can be stored on compact discs, flash memory, and other media. Large file sizes also give rise to long download times for retrieving songs from the internet. For these reasons (and others), there is considerable interest in shrinking the storage requirements of sampled sound.

Simple way of looking at audio compression

An audio signal can be compressed using digital filter. Digital fi ....etc

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Abstract:

Digital audio broadcasting, DAB, is the most fundamental advancement in radio technology since that introduction of FM stereo radio. It gives listeners interference - free reception of CD quality sound, easy to use radios, and the potential for wider listening choice through many additional stations and services.

DAB is a reliable multi service digital broadcasting system for reception by mobile, portable and fixed receivers with a simple, non-directional antenna. It can be operated at any frequency from 30 MHz ....etc

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ABSTRACT
Digital watermarking is a technique used for preventing illegal copying and tampering of data. It is similar to the paper watermarking. It is mainly used for two purposes: authentication of data and copyrighting. Using copyrighting we can trace illegal copies of digital data and certify original owners. Also in case of dispute over a data the watermark can be used to prove the ownership. In watermarking the original data is superimposed with a signal containing the copyrighting information. This signal is not per ....etc

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Abstract
CAPTCHA (Completely Automated Public Turing test to Tell Computers and Humans Apart) is a program that can generate and grade tests that most humans can pass, yet current computer programs can't pass. The concept behind such a program arose from real world problems faced by internet companies such as Yahoo and AltaVista. Yahooo users free email accounts. The intended users are humans, but Yahoo discovered that various web companies and others were using bots to sign up for thousands of email accounts every minute from which they coul ....etc

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SEMINAR ON AUDIO FINGERPRINTING SYSTEM



INTRODUCTION

Fingerprint systems are over one hundred years old. In 1893 Sir Francis Galton was the first to “prove” that no two fingerprints of human beings were alike. Approximately 10 years later Scotland Yard accepted a system designed by Sir Edward Henry for identifying fingerprints of people. This fingerprinting system however existed longer than a century. It is important to note that a human fingerprint differs from a textual summary in that it does ....etc

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ABSTRACT
Audio-Video mixing is an important aspect of cinematography.Most videos such as movies and sitcoms have several segments devoid of any speech.Adding carefully chosen music to such segments conveys emotions such as joy,tension or melancholy. In a typically professional video production,skilled audio-mixing artists aesthetically add appropriate audio to the given video shot. This process is tedious, time-consuming and expensive.
The PIVOT VECTOR SPACE APPROACH in audio mixing is a novel technique that automatical ....etc

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INTRODUCTION

Digital audio broadcasting, DAB, is the most fundamental advancement in radio technology since that introduction of FM stereo radio. It gives listeners interference ” free reception of CD quality sound, easy to use radios, and the potential for wider listening choice through many additional stations and services.

DAB is a reliable multi service digital broadcasting system for reception by mobile, portable and fixed receivers with a simple, non-directional antenna. It can be operated at any frequency from 30 MHz to 3GHz ....etc

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ABSTRACT
Audio spot lighting is a very recent technology that creates focused beams of sound similar to light beams coming out of a flashlight. By Ëœshiningâ„¢ sound to one location, specific listeners can be targeted with sound without others nearby hearing it. It uses a combination of non-linear acoustics and some fancy mathematics. But it is real and is fine to knock the socks of any conventional loud speaker. This acoustic device comprises a speaker that fires inaudible ultrasound pulses with very small waveleng ....etc

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please send me seminar file on' [email protected]' ....etc

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