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Physical Audio formats

This article provides an overview of different digital audio formats, including uncompressed, lossless, and lossy compression. It also discusses the role of DRM in digital media, including its impact on consumers and the music industry. Additionally, it explores the debate surrounding DRM and piracy. Relevant topics such as Apple devices, iTunes, and recognizing pirate music products are also covered.

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Physical Audio formats

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  1. Physical Audio formats

  2. Digital Audio Formats • Uncompressed (WAV)‏ • Lossless compression (lossless WMA, FLAC)‏ • Lossy compression (mp3, lossy WMA, AAC)‏ http://en.wikipedia.org/wiki/Audio_file_format

  3. Apple Dictates? iPod iPhone iTunes

  4. iTune therefore iAm? • digital media player application • is used for playing and organizing digital music and video files on iPod digital media players • is available as a free download for Mac OS X, Windows Vista, and Windows XP • can currently read, write, and convert between MP3, WAV, MPEG-4, AAC, and Apple Lossless.

  5. iTunes Store • the number-one music vendor in the United States • has more than 8,000,000 songs • over 20,000 audiobooks • 2000 music videos and episodes of popular television programs

  6. Apple FairPlay • Users can make a maximum of seven CD copies of any particular playlist containing songs purchased from the iTunes Store. • Users can access their purchased songs on a maximum of five computers. • Songs can only be played on a computer with iTunes or an iPod; other MP3 devices do not support FairPlay encoded tracks.

  7. Digital Rights Management

  8. Steve Jobs's main points on DRM • DRM has never and will never be perfect. Hackers will always find a method to break DRM. • DRM restrictions only hurt people using music legally. Illegal users aren't affected by DRM. • The restrictions of DRM encourage users to obtain unrestricted music which is usually only possible via illegal methods. • The vast majority of music is sold without DRM via CDs which has proven successful.

  9. Good or Evil?

  10. Music piracy causes • $12.5 billion of economic losses every year • 71,060 U.S. jobs lost • a loss of $2.7 billion in workers' earnings • a loss of $422 million in tax revenues • $291 million in personal income tax • $131 million in lost corporate income and production taxes.

  11. How to distinguish a pirate disk? Price = Quality

  12. POCKET GUIDE TO RECOGNISING PIRATE MUSIC PRODUCTS

  13. POCKET GUIDE TO RECOGNISING PIRATE MUSIC PRODUCTS

  14. POCKET GUIDE TO RECOGNISING PIRATE MUSIC PRODUCTS

  15. For Further Reference • Apple discussion forum http://discussions.apple.com/category.jspa?categoryID=149 • Digital Rights Management http://www.eff.org/issues/drm http://www.drm.info/ • Digital Audio Best Practices http://www.bcr.org/cdp/best/digital-audio-bp.pdf • The Internet-audio (r)evolution http://www.edn.com/index.asp?layout=article&articleid=CA46537 • The Customer Is Always Wrong: A User's Guide to DRM in Online Music http://www.eff.org/pages/customer-always-wrong-users-guide-drm-online-music

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