Sound chips

[ldivision]

Hello, I am looking at providing some sounds for my model railway. I have some MP3 files. Is there a sound chip that I could download these into and then select them individually from a switch or relay contact or some form of transistor switching. I hope to feed the output of this into a 12Watt universal amplifier module. Any ideas that could point me in the right direction would be appriecated.

Cheers

Mark 

[mariush]

Have a look at this section:

https://www.sparkfun.com/search/results?term=mp3&what=products

For example, their mp3 trigger ( https://www.sparkfun.com/products/11029 ) has 18 predefined pins for 18 tracks (just send some voltage on that pin and the player plays that track), or you can just send a command through the serial port to play one of 256 tracks you store on the SD card.
You'll need an arduino or some microcontroller or some pc to interface with the board though. 

[David_AVD]

The mp3 playback boards from Tenda are good value for money.  I bought some direct from them a while back, but I believe some models are available through the kit suppliers.  They have flash memory ones with USB download as well as SD card ones.

[NiHaoMike]

Convert the MP3s into raw PCM streams and then it would be trivial to use a microcontroller.

[ldivision]

Gentlemen, thanks for your replies that gives me a direction to go now.

Cheers,

Mark

[Psi]

There are examples of using an arduino to play wave files off an sd card.
(If you feel like doing it with a micro)