recording sound to an IC

hi guys.. have no idea where this post should be so thought it'd better be in the off topic then later move to schematics. ;) have you ever gone into one of those gift shops and find a birthday card that allows you to record 10-12secs of your voice to personalise the card. i saw one recently and that really got me thinking, what if i could do one of my own and started investigatin on the net and posting a thought here. Does anyone know what type of IC they use for this and also which IC can be used to store a melody (would u say its a midi file?) like those birthday cards with the birthday song when you open it. thoughts and feedback would be much appreciated :)

Hi,

Theory of operation.

AVR335: Digital Sound Recorder with AVR and DataFlash
http://www.atmel.com/dyn/resources/p...ts/doc1456.pdf

Source code:
http://www.atmel.com/dyn/resources/p...nts/avr335.zip

Best regards,

Luciano

hi Luciano.. that was quick! thanks for the links. will check it out tonite and plan for my next part of the project to go with the LED one that i mentioned in the schematics forum. cheers!


@EDIT: oh by any chance would you know how much the AVR335 ic would cost? so i know what to expect when i pop into the electronics shop.

The AVR335 is an application note how to build a Digital Sound Recorder
with a microcontroller and a flash memory.

Luciano