DIGITAL WATERMARKING ON AN AUDIO FILE THROUGH SIGNAL PROCESSING
Authors:
S. K. Moinuddin, M. Tipu Sait,
ECE Dept., ECE Dept.,
SJCET, SJCET,
Reg No: 06G31A04A7 Reg No: 06G31A0467
ST. JOHNS COLLEGE OF ENGINEERING & TECHNOLOGY
YERRAKOTA, YEMMIGANUR-518360,
KURNOOL DIST., A.P
Introduction:
Audio watermarks are special signals embedded into digital audio. These signals are extracted by detection mechanisms and decoded. Audio watermarking schemes rely on the imperfection of the human auditory system. Howe ....etc

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INTRODUCTION
EXISTING SYSTEM
Digital Watermark is an invisible mark inserted into the digital multimedia data so that it can be detected in the later stage of evidence of rightful ownership. A great deal of research efforts has been focused on digital watermark in recent years. The techniques proposed so far can be divided into two main groups of according to the embedding domain of the container imag
1) Spatial Domain Approach:
One group is SPATIAL domain approach .The earliest watermarking techniques are mai ....etc

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Digital watermark is a special message embedded in an image, whether it is a photo, video or
other digital content. A digital watermark software
embeds these imperceptible messages by making
subtle changes to the data of the original digital content and it can be read to validate
original content. It thus provides an imperceptoble way to embed information in both digital and conventional media content. Watermarking systems must include the following attributes:
-robustness against distortion and attack
-visibility of the water mark
....etc

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Abstract:

A digital audio broadcasting system that is capable of providing a large number of high quality stereophonic channels to mobile receivers in an environment with severe multipath delay and fading. Optimum combination of frequency and time diversity to guarantee robust performance in the mobile channel, with its multipath delay and frequency-selective fading effects. The system is based upon a dynamic single channel per carrier assignment of each stereo channel to many carriers. Inter symbol interference degradations caused by multipat ....etc

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BROADCAST CAMERA USING DIGITAL SIGNAL PROCESSING
By the nature of their use broadcast equipment must have high reliability and operability while capable of producing high quality image signals. Digital signal processing based equipment must meet this standard. TV cameras contain a
-image capturing unit
-signal processing unit
10 plus bit digital accuracy must be possessed by digital equipment in order to achieve adequate gamma correction. limitation of A/D converters prevent this accuracy. So DSP technology has not been applied to t ....etc

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