Embedded System wave file player

[zhiling0229]

Hi guys,

I'm trying to build an embedded system wave file player.

This is the block diagram for this system that I thought off.

A microcontroller will receive an input. The microcontroller will fetch the desire wave file from the EEPROM and will send to the D/A converter and output it to the speaker.

Is this workable? Need some feedback and some circuit layout would be nice

View attachment 38899

 

[ZomBiE]

You're way off, basic principle is ok. But... It needs at least a AC'97 compatible codec and few more digital filter/sampling/converter IC's to get at least acceptable sound quality.

 

[XUP]

See the following link may be get a new idea or concept :

http://www.siliconchip.com.au/cms/search/index.html?scope=&keywords=msgplay&Search=Search

Good luck !

 

[MP1]

The drawing is somewhat over simplified, but what you are wanting to accomplish is posted all over the web as a mp3 player. There are schematics, etc. Actually, that brings me to the question: Don't you want to use mp3 instead of wav, since the same sound file in mp3 format is about 1/10th the size?

MP