Mp3 player

MP3 PLAYER

WHAT IS AN MP3 PLAYER ?

A device for playing MP3 files.

HISTORY

Unsuccessful MP3 player developed by Frauenhofer in the early 1990s.

WinPlay3 was the first real-time MP3 audio player.

HISTORY

AMP MP3 Playback Engine - the first successful MP3 player in 1997

Justin Frankel and Dmitry Boldyrev -ported AMP to Windows and created Winamp.

HISTORY

In 1998, Winamp became a free MP3 music player boosting the success of MP3.

ORIGIN OF MP3 TECHNOLOGY

MP3 (MPEG Audio Layer III ) - standard for audio compression that makes any music file smaller.

MPEG, (Motion Pictures Expert Group), standards for displaying video and audio using lossy compression.

ORIGIN OF MP3 TECHNOLOGY

Fraunhofer-Gesellshaft – A German Company that releases the license for the music technology.

WHAT CAN MP3 DO ?

1 second – 1.400Mbit (CD quality)

In CD quality a 4min song uses 40 MB, but reduces to 4MB only in MP3 format.

Other Formats

WMA - Windows Media AudioWAV - Waveform AudioMIDI - Music Instrument Digital

Interface.AAC - Advanced Audio CodingOgg Vorbis A free, open and un-

patented music format

Other Formats

ADPCM - Adaptive Differential Pulse Code Modulation

ASF - Advanced Streaming Format

VQF - Vector Quantization FormatATRAC - Sony's Adaptive Transform

Acoustic Coding 3

PORTABLE PLAYERS

The first MP3 players (1998)

MPMan - introduced by Eiger Labs. It has a storage capacity of 32MB (about 10-20 songs) and sold for $69.

PORTABLE PLAYERS

The first MP3 players (1998)

RIO PMP300 – Produced by Diamond Multimedia and was introduced on September 15, 1998.

The Technology

MP3 players uses solid-state memory. It has an embedded software application that allows users to transfer MP3 files to the player

The Technology – (Basic Parts)• Data port• Memory• Microprocessor• Digital signal processor (DSP)• Display

The Technology – (Basic Parts)

• Playback controls• Audio port• Amplifier• Power supply

The Technology – (How it Works)

TYPES OF MP3 PLAYERS

4 BASIC TYPES OF MP3 PLAYERS

1. Flash Memory Players

The smallest and lightest and typically stores fewer songs than hard drive players

4 BASIC TYPES OF MP3 PLAYERS

2. Hard Drive and Mini-hard Drive Players

Larger and heavier than flash memory players and offer considerably more storage.

4 BASIC TYPES OF MP3 PLAYERS

3. MP3 CD and Mini-Disc MP3 Players

These MP3 files are burned to CD-R/RW discs from your old CD collection and used in the MP3 CD player

4 BASIC TYPES OF MP3 PLAYERS

4. Hybrid Players

MP3 is no longer just a stand-alone technology. Companies are now offering MP3 capability in other consumer products

MP3 PLAYER

http://inventors.about.com/od/mstartinventions/a/MPThree.htmhttp://www.whoinventedit.net/who-invented-the-mp3-player.html

http://electronics.howstuffworks.com/mp3-player.htm