Data Over Sound

(Transfer data with sound waves between android devices)

• Description:

  • Chat or send/receive various data.
  • No need for internet wifi or cellular network, just speakers and microphone.
  • Data is transfered using sound waves on frequencies adult human ear can't hear.

• More about project:

  • Uses frequency modulation (key-shifting) to send data.
  • Encoding done with adaptive Huffman.
  • Error correction done with Reed Solomon's algorithm.

• APK download