Hello, I'm in my first year of engineering, and I have a project that involves the scrambling of data using sound. The set up is as follows:
-input a 4 digit number into a computer
-the computer scrambles the number using matrix algebra
-each number from the matrix has an associated sound to it (for a maximum of
18 sounds)-the sound will be send through water via a submerged speaker
-the sound will be received via a submerged microphone
now here is where I'm stuck. I need to know what effects water has on sound. I know for sure that the velocity changes. But in order to continue my project, I have to be able to calculate what the original source sound is. Would the sound change frequency?
Anyways, once received and re-calculated, the sound would be reassigned to its number between 1-18 and be put back through the inverse matrix to retrieve the original 4 digit code.
Thank you for any help
-Tom Kurowski tom_kurowski@ hot mail [dot] com