Hi!
You need a PIC microcontroller with an ADC and a little bit of analog circuitry (Mic+amplifier) to sample and digitize the sound. For storing the sound i would recommend you to use the SD card instead of an EEPROM. The SD card is very fast and has a lot of capacity at a comparatively low cost. e.g in Pakistan the cost for a 1GB card is only Rs.350. At a sampling rate of 4KHz a 1GB card will store up to 69 hours of sound. Isn't it great.
In order to playback the sound you will need a D/A converter (PWM can also be used) and a simple amplifier to regenerate the sound.
If this does not solve your problem feel free to ask.
Regards.
Hi!
Yes, I will try my best. How much time you have got for the project? I will try to design the schematic. Initially you can start simulating your program in proteus software.
Are you from Pakistan?.
Regards.
There is a complete sample in the Proteus Samples directory (with a PIC24) using ADPCM encoding and a sallon-key filter for output. Could be useful to get you going...