MATLAB
%Justin Kietzman
%jkkietzm@purdue.edu
%Hidden Messages
%Please store the jpforward.wav in your current working directory
%Clear all variables and workspace
clc
clear
%Useful Information
FILE = 'jpforward.wav';
delta = 44100; %Given to us in Tips sheet
%use wavread to read jpforward file
%JP = wavread('c:\path\to\file\filename.wav');
JP = wavread(FILE);
JPbackwards = flipud(JP);
%Play extracted Song
%I have no idea what he is actually saying
%wavplay(JP, delta);
fprintf('Replay the Song Backwards!');
%Commented Out line to listen to other versions
%wavplay(JPbackwards, delta);
slow = delta*.5;
%Slow it Down
wavplay(JPbackwards, slow);
%"It's my voice" ?? Extracted message
wavwrite(JPbackwards, 1/slow, 32, 'hw1_2JPbackwards.wav');
