The term instantaneous sound pressure is identified in base64 scheme by the sequence aW5zdGFudGFuZW91cyBzb3VuZCBwcmVzc3VyZQ==, while the MD5 signature is equal to 40f750130df9e68bce7064fcd54cd66b. The ASCII encoding of instantaneous sound pressure in hexadecimal notation is 696e7374616e74616e656f757320736f756e64207072657373757265.