Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Presentation1

351 views

Published on

  • Be the first to comment

  • Be the first to like this

Presentation1

  1. 1. Audio Formats and Data compression<br />Kyle Laurin<br />
  2. 2. Introduction<br />
  3. 3. Acoustic recording<br />The Phonograph Cylinder<br /><ul><li>Initial Phonograph cost: $150
  4. 4. Equal to about $3500s today
  5. 5. Initial Cylinder cost: 50 cents
  6. 6. Equal to about $18s today
  7. 7. Playback time: 2 minutes
  8. 8. WATCH</li></li></ul><li>The gramophone<br />The Birth of Records aka “Vinyl”<br /><ul><li>Triumphed over the phonograph cylinder as the ideal audio storage format
  9. 9. Dominated the audio industry for most of the 20th century</li></li></ul><li>Electrical Recording<br />Microphone<br />Vacuum Tube Amplifier<br />WATCH<br />Loud Speaker<br />
  10. 10. Tape<br />Stereophonic Recording<br />8 Track Tape<br />Cassette Tape<br /><ul><li>Multi Track Recording</li></li></ul><li>Compact Discs<br /><ul><li>Much Smaller than Vinyl records
  11. 11. 74 minutes of playing time (vs 20 minutes for long playing vinyl records)
  12. 12. Can reproduce the highest of digital audio quality</li></li></ul><li>Audio Audio Compression / mp3s<br /><ul><li>Effectively erases data to reduce file size
  13. 13. Mp3 encoded files can be up to 11 times smaller than .wav files found on cds
  14. 14. As a result of this compression in file size, the audio quality is reduced</li></li></ul><li>Mp3 vs .wav<br /><ul><li>they Duke it Out</li></li></ul><li>Conclusion<br /><ul><li>What are the possible repercussions of this degradation in audio quality?
  15. 15. Consider headphones.
  16. 16. The future of audio compression
  17. 17. Lossless compression methods</li>

×