Hi Mosaab,
I’m glad to know that you are interested in the idea which I’ve posted. This is the basic block diagram
Transmitter section
_________________________________________
| |
| |
| mic |
|
>|ADC|—->|C CODE|
>|UART|
|
>|Transmitter|
| |
| |
| MCU |
_________________________________________
The built in adc of the mcu take each samples of the continuous analog signals from the mic and convert it into descrete digital values. You can get the digital values at each sampling time directly by reading the register of adc. Send these values to the uart of mcu, at a baud rate less than 3000. Input of the transmitter module is connected to the Tx pin of the uart via a max232.
Receiver section
___________________________________ _______
| |
>1| |
| |
>2| |
| |
>3| |
|Receiver|
|
>|UART|
>|C CODE|
|
>4| |
| |
>5| DAC |
>|Audio amplifier|
>|Speaker|
| |
>6| |
| |
>7| |
| MCU |
>8| |
___________________________________ | |
_______
The transmitted bits are received serially in the receivers uart, from there the digital values are read and fetch to any 8 output pins. Use a dac at the output to generate analog equivalent of transmitted signals. Amplify and fed to a loud speaker.
It is just my idea only. I recommend you to collect all the available details related to the project before proceeding with it.