Hello everyone,
Can you please help me know how voice data are stored in microcontrollers? I will be very grateful if i get some tutorial links.

 

You might want to look into Analog to Digital converters. Try the Wikipedia article - http://en.wikipedia.org/wiki/Digital_recording

 

Here is another article on Pulse Code Modulation (PCM) and how things are implemented in the Phone network (PSTN).

http://en.wikipedia.org/wiki/Pulse_code_modulation

http://en.wikipedia.org/wiki/Public_switched_telephone_network

 

Here is free windows software to convert any wave files to 1bit sound;
http://www.romanblack.com/picsound.htm

then the 1bit sound can be played back with just 1 (or 2) microcontroller pins and no DAC needed etc.

 

Thank you very much for the kind reply. I Will make the best use of it.