Files
Media: jpbackwards_ECE301Fall2008mboutin.wav
This file is at the original sampling frequency.
Media: jpbackwards70sampling_ECE301Fall2008mboutin.wav
This is at 70% the original sampling frequency. The message is a bit more clear.
Message
The message is a bit difficult to make out, but I believe he is saying I took my life.
Matlab Code
%Joseph Mazzei ECE 301 HW1 Problem 2
%Clear Console and all Variables
clc
clear all
%Get a vector of the wav data and the sampling frequency
[foward,fs] = wavread('Jpforward.wav');
%Play the wav forwards
sound(foward,fs);
%Reverse the wav data vector
backward = flipud(foward);
%Write a wav of the backwards data at the original sampling frquency
wavwrite(backward,fs,'jpbackwards.wav');
%Play the wav backwards at original sampling frequency.
sound(backward,fs);
%Write a wav of the backwards data at 70% the original sampling frquency
wavwrite(backward,fs*.7,'jpbackwards70psampling.wav');
%Play the backwards file at 70% original sampling frequency.
sound(backward,fs*.70);
