Hello,
I've made a project with audio recording using Arduino ADC before. The file is saved to the MicroSD card as wav file. This means you can take the MicroSD card and put in computer or whatever to read the files easily.
In this project, I will make a working prototype board with 6 momentary switches to control 6 microphones. When any of the switches are pressed, then the Arduino will record the audio from the microphone. Notice that due to the memory limitation of the Arduino, only 1 recording can be done at a time, if user presses multiple switches at the same time, then Arduino will record one by one (i.e. record for 1st switch for 30 seconds, then goes to the next). To save the memory, the audio quality will be 64kbps, this is exactly same as the quality of the traditional PSTN telephone system.
Deliveries for this projects are (1) the working prototype board, (2) source code and (3) schematic with all parts names and numbers.
The cost of this bid does not include the cost for parts and shipping.
Regards,
anhvu100