Sponsored by the CAHE Technology Help Desk • 646-3305
Digital Music, MP3 Players, iTunes& All the Stuff That’s Fun to KnowBarbara Chamberlin, Ph.D.
What is digital music?Music on the computer
Digital audio goes way back…
1989Macintosh
= ?
Digital audio required space
=
=
1 song = 27.2 MB
Storage math…
Kilobytes (KB)• 1000 = 1 MB• Used to measure
text, email, small files
Storage math…
Megabytes (MB)• 1000 KB• 1000 MB = 1
Gigabyte• Used to measure
Office documents• Floppy disk =1.44
MB
Storage math…Gigabytes (GB)• 1 GB=1000 MB• 1 GB=694 floppies• Used to measure
BIG files, like video• How we measure
hard drives now
Storage math…
• 1000 KB = 1 MB (email in KB)• 1000 MB = 1 GB (docs in MB)• 1000 GB = more space than your really
need right now
=
1 song = 27.2 MB
Digital audio required space• Storage space (hard drives)
were:– Expensive– Big and clunky– Slow Old: 1989
20 MB Hard drive$899
Old: 19951 GB Hard Drive
$849
=
1 song = 27.2 MB
=
1 GB Hard Drive($899 in 1995)Would hold35 songs
So, NOW why all of the…
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
Why the fuss now?
• Storage drives got cheap• Storage drives got small• Audio compression got good
1 song = 27.2 MB1 song = 2.4 MB or less
Digital music is feasible!
QuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.
What is an MP3?• Compressed audio file
What is an MP3 player? (iPod, Rio)
• Hard drive that plays compressed audio files
About MP3 players…
• Little hard drives• Come in different sizes, can
hold different numbers of songs• Come with different capabilities
– Listen to audio– Record audio– Store data
QuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.
Getting music on the MP3 player• Demonstration: iTunes
– Organize music into playlists– Rip music CDs– Write music CDs– Purchase music
Uses: Play Music• All players will:
– Play audio– Hook up to computer
to download• Most players will:
– Display information• Some players will:
– Record audio– Act as hard drive
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
Uses: Data
• Calendar• Contacts• Notes• Hard drive backup• Presentations• Photos
QuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.
Uses: Text
• Recipes• Books• News RSS Feeds• Dictionary
Uses: Language
• iLingo: text based language dictionary with audio pronunciation
• Record and practice your own language dialogue
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.QuickTime™ and a
TIFF (Uncompressed) decompressorare needed to see this picture.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
Uses: Audio
• It is really easy to capture and use audio.
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
Uses: Audio
• Record class notes• Conduct interviews• PodCasting• Car “stereo”
QuickTime™ and aTIFF (Uncompressed) decompressor
are needed to see this picture.
What can you do with digital audio?• Post to web site• Put into video
applications• Place into
PowerPoint• Share on other
MP3 players• Burn to CD
Uses: Other
• MapQuest driving directions• Probe tools• Flashlight• “Reads” text files to you• RSS feeds• Karaoke
In conclusion…
• Door prizes/evaluation• Next Popcorn Technology Series
– Friday May 20– 3:30 pm– Web Sites that will Wow You
• Talk with the Experts