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MP3 - How does your iPod work? with Michael McCarthy

A presentation on how sound files are digitally compressed and the process's importance to the music industry.
  • Location: Munster
  • Students
  • Secondary
  • Post Primary Senior Cycle
When Oct 18, 2012
from 01:15 PM to 02:15 PM
Where Waterford Institute of Technology, Cork Road Campus
Contact Name
Contact Phone 051 302037
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When we think of MP3's we tend to immediately think of music files. However, MP3's are actually compressed sound files using basic trigonometry.

This talk presents how digital sound is represented in a computer (or an iPod) and how, by representing the digital sound by sine waves, apparent redundancies within the digital sound file can be readily identified and and then removed, without changing  what is heard, but resulting in a much smaller file size.

Without this approach, Digital Radio, iTunes, ect. would not be commercially viable.


Booking is essential: or 051 302037