The term speech communication is identified in base64 scheme by the sequence c3BlZWNoIGNvbW11bmljYXRpb24=, while the MD5 signature is equal to e5338f3b7edade87a72c4716da7d32a7. The ASCII encoding of speech communication in hexadecimal notation is 73706565636820636f6d6d756e69636174696f6e.