Digital Audio
Technologies & Applications
1

Portable Music Players
2

Before Digital
3

Before Digital
70s
3

Before Digital
70s
3

Before Digital
70s
3

CD on market (1982)
4

CD on market (1982)
i t al!
’s D ig
It
4

5

Not quite portable, is it?
5

Digital files?
Compress ‘em
6

Digital files?
Compress ‘em
CODECS
6

Digital files?
Compress ‘em
ATRAC WMA
CODECS
Vorbis (OGG) AAC
6

Digital files?
Compress ‘em
CODECS
MP3
6

Digital Audio Players
7

Digital Audio Players
1997 - MPMan
SaeHan Infomation Systems
Eiger Labs MPMAN F10 (1998)
32 MB
7

Digital Audio Players
1997 - MPMan 1998 - Rio PMP300
SaeHan Infomation Systems Diamond Multimedia
Eiger Labs MPMAN F10 (1998) 32 MB Internal Memory
32 MB SmartMedia Memory Slot
7

Digital Audio Players
8

Digital Audio Players
2000 - Creative NOMAD Jukebox
Creative Labs
6 GB Harddisk
$500
8

The Revolution
9

The Revolution
9

The Revolution
October 2001 - 1st iPod Introducing
9

iPod Family
10

iTunes
+ iTunes Music Store
11

12

Online Music Stores
13

Podcast
14