$t3g4n0-t00l supports audio and image files Usage: Encoding: python steg_tool.py -O e -ot (image | audio) -s <src_file_path_with_extension> -t <destination_file_path_with_extension> -m <message> Decoding: python steg_tool.py -O d -ot (image | audio) -s <src_file_path_with_extension>