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Portable Audio Device


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Portable Audio Device

  2. 2. Table of Contents <br />What is an Portable Audio Device?<br />The beginning of the portable audio device.<br />The introduction to cassette players.<br />Sony Walkman and Sony Discman.<br />Today&apos;s music devices.<br />Apple iPod.<br />Different type of players and What they can do.<br />(2)<br />
  3. 3. What is an Portable Audio Device?<br />“A portable audio player, sometimes referred to as an MP3 player, is a consumer electronic device that has the primary function of storing, organizing and playing audio files.” (3)<br />MPEG-1 Audio Layer 3, Moving Picture Experts Group Layer-3 more commonly referred to as MP3<br />(4)<br />
  4. 4. The beginning of the portable audio device<br />Regency TR-1<br />(5)<br />
  5. 5. The beginning of the portable audio device<br />Regency TR-1<br />1954, I.D.E.A. released the very first portable transistor radio. <br />The Regency came out in a variety of colors over the years. TR-1 tuned stations by a simple gold dial and played through a low-fidelity monophonic speaker. <br />It retailed for $49.95 back in the day, which would make it cost around $325 in today’s dollars.<br />(6)<br />
  6. 6. The beginning of the portable audio device<br />KLH Model 11 Portable<br />(7)<br />
  7. 7. The beginning of the portable audio device<br />KLH Model 11 Portable<br />1962, Henry Kloss introduced the KLH Model 11 portable stereo.<br /> the first transistorized record player.<br /> with the changer/amplifier and two speakers folding into a three-piece suitcase<br />(8)<br />
  8. 8. THE INTRODUCTION TO CASSETTE PLAYERS<br />Cassette players were designed by the Phillips corporation in 1963 and sold to the public in 1965.<br />They were originally meant to record vocal dictation but later evolved to replace record players in home entertainment systems.<br />(9)<br />(10)<br />
  9. 9. CASSETTE PLAYERS<br />Philips Compact Cassette <br />(11)<br />
  10. 10. CASSETTE PLAYERS<br />Philips Compact Cassette<br />In 1965, Philips released the first ever compact cassette tape.<br />Originally designed for recording dictations and other boring stuff, the cassette recorded up 45 minutes of sound on single 1/8-inch tape.<br />(12)<br />
  11. 11. THE WALKMAN<br />Sony Walkman TPS-L2<br />(15)<br />
  12. 12. THE WALKMAN<br />Sony Walkman TPS-L2<br />1979, Sony released the first truly self-contained portable music system, the TPS-L2 Walkman cassette player.<br />The Walkman’s real innovation was its size, measuring only slightly larger than a cassette tape itself. <br />Featured a pair of portable, lightweight headphones and operating on AA batteries, it ushered in a new era of portability.<br /> The original Walkman retailed for around $274 US dollars today. <br />(16)<br />
  13. 13. SONY DISCMAN<br />Sony Discman D-50<br />(17)<br />
  14. 14. SONY DISCMAN<br />1984, on the one year anniversary of the introduction of compact discs, Sony introduced their D-50 portable CD player, the first ever portable digital music player.<br />Just slightly larger than a CD case, the player offered all of the great audio quality that digital recordings had to offer.<br />The CD industry experienced sudden growth with the number of CD titles available dramatically increasing.<br />(18)<br />
  15. 15. TODAY’S MUSIC PLAYERS<br />MP3 Player<br />(19)<br />
  16. 16. TODAY’S MUSIC PLAYERS<br />MP3 Player<br />Digital sampling is used to convert an audio wave to a sequence of binary numbers that can be stored in a digital format, such as MP3. <br />Common features of all MP3 players are a memory storage device, such as flash memory or a miniature hard disk drive, an embedded processor, and an audio codec microchip to convert the compressed file into an analogue sound signal.<br />(20)<br />
  17. 17. APPLE IPOD<br />(21)<br />
  18. 18. APPLE IPOD<br />The iPod line can play several audio file formats including MP3, AAC/M4A, Protected AAC, AIFF, WAV, and Audible audio book. <br />The iPod Photo introduced the ability to display JPEG, BMP, GIF, TIFF, and PNG image file formats. <br />Fifth and sixth generation iPod Classics, as well as third generation iPod Nanos, can additionally play MPEG-4, and QuickTime video formats<br />As of September 9, 2009, more than 220,000,000 iPods had been sold worldwide, making it the best-selling digital audio player series in history<br />(22)<br />
  19. 19. DIFFERENT TYPES OF MUSIC PLAYERS<br />Flash drive player<br />Hard drive player<br />(23)<br />(24)<br />
  20. 20. DIFFERENT TYPES OF MUSIC PLAYERS<br />Flash player<br />Flash-based Players: These are non-mechanical solid state devices that hold digital audio files on internal flash memory or removable flash media called memory cards.<br />Due to technological advancements in flash memory, these originally low-storage devices are now available commercially ranging up to 64 GB.<br />Basic MP3 player functions are commonly integrated into USB flash drives.<br />(20)<br />
  21. 21. DIFFERENT TYPES OF MUSIC PLAYERS<br />Hard drive<br />Hard drive-based Players or Digital Jukeboxes: Devices that read digital audio files from a hard disk drive (HDD). <br />These players have higher capacities currently ranging up to 250 GB.<br /> At typical encoding rates, this means that tens of thousands of songs can be stored on one player.<br />(20)<br />
  22. 22. WHAT THEY CAN DO<br />Portable audio devices today can do pretty much anything.<br />Play music, watch videos, view images, surf the internet, and play video games.<br />There also being used to replace certain other products. Replacing camera’s as most new portable audio devices are starting to be equipped with a camera and also a voice recorder.<br />
  23. 23. SUMMARY AND CONCLUSION<br />Portable audio devices have gone from radios, to cassette players, to CDs to now just a little memory card the size of a 2 dollar coin.<br />If your interested just for a few hundred songs then go with a smaller flash player, if you want to carry your whole music library then purchase a hard drive player. <br />Altogether there are so many portable audio devices made today by different companies its hard to decide which one will be carrying your music library.<br />
  24. 24. References <br /><br /><br /><br /><br /><br /><br /><br /><br /><br />
  25. 25. References <br /><br /><br /><br /><br /><br /><br /><br />
  26. 26. References <br /><br /><br /><br /><br /><br /><br /><br /><br />
  27. 27. Thank You<br />Are there any questions?<br />