Project Description #4

Title:                                         Mp3 Decoder/Player

Description:

A device to store, decode, and play mp3 files

Objectives:

Store, read, decode and play mp3 files to speakers

Create a mp3 player with upgradeable memory

Ceate a more user customizable randomizer

Have an mp3 player with an easy way to change the mp3 files stored using a PC

Specifications:

Memory unit to interface with PC for upload and deletion of files

Decode and play mp3 files from memory to speakers

Minimum 3-mode randomizer: Playlist order, random (equal probability), random based on rating system

Display with mp3 name and randomizer mode

Diagrams:

 

 

Cost Estimate:

Memory                                   35

Memory Interface                     20

Decoder                                   18

μP                                            15

Other                                       10

Total                                        98

 

Schedule:

 

                        Determine sufficient memory and μP

 

                        D/A  Converter

                                    Correct outputs/inputs

                                    Amplifier

 

                        Assemble circuit & power supply

 

                        Install μP

                                    Memory interface

                                    Entry interface

                                    Display interface

                                    Randomizer (3 modes)

 

                        Install inputs/outputs

 

                        Establish timing

 

                        Test and troubleshoot circuit

                                    memory, randomizer, amplifier, speakers