The term sampling frequency is identified in base64 scheme by the sequence c2FtcGxpbmcgZnJlcXVlbmN5, while the MD5 signature is equal to a58bb79dff289e1c9f21933f9232e9fc. The ASCII encoding of sampling frequency in hexadecimal notation is 73616d706c696e67206672657175656e6379.