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Protection for Web Delivered Music Patcharinee Tientrakool EE 6886: Topics in Signal Processing - Multimedia Security System Digital Music Distribution Online music store e.g. iTunes music store Internet radio Peer-to-peer network e.g. KaZaA PROTECTION Main Technologies for

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Protection for Web Delivered Music

Patcharinee Tientrakool

EE 6886: Topics in Signal Processing - Multimedia Security System


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Digital Music Distribution

  • Online music store

  • e.g. iTunes music store

  • Internet radio

  • Peer-to-peer network

    • e.g. KaZaA

PROTECTION


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Main Technologies

for

Music Content Protection

Encryption

Watermarking

Help when an object is

transmitted through a channel

Prove copyrights

Trace illegal distribution


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Creation of Protected music content

Watermark

Encryption Key

Plain

music

Watermarked

music

Protected

music

Watermark

Embedding

Encryption


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Scope of study

  • Watermarking techniques for web delivered music content

  • DRM systems currently in the market


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Watermarking

Music sheet

Audio file

in image files

or

while printing

e.g. real time watermarking


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Audio watermarking

  • LSB coding

  • Watermarking the phase of the host signal

  • Echo hiding

  • Spread spectrum watermarking

  • Methods using various characteristics of the host audio


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Music sheet watermarking

  • Grayscale Approach

  • Pixel Based Approach

    • Staff line-Modulation

    • Block Based Data Hiding

  • Symbol Oriented Approach

    • horizontal distances

    • thickness of some musical symbols or their elements

    • orientation or shape of musical symbols


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Scope of study

  • Watermarking techniques for web delivered music content

  • DRM systems currently in the market


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Digital Rights ManagementSystems(DRM systems)

  • Architectures for protection of IPR.

  • Several components :

user identification

authentication

encryption

copy protection

copy control

access control

digital watermarking

digital fingerprinting

pay systems

license agreement



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Scope of study

  • Watermarking techniques for web delivered music content

  • DRM systems currently in the market


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