Roos_Umah_Nour_FFT2 - f_size = 1000 len = length(speech...

%
%This program looks at the fft of voiced and unvoiced portions of speech %
%Reseting the Program
clear all;
close all;
clc;
%Reading the file
[speech, fs] = wavread('Clean.wav');
speech1 = AddNoise(speech, 1);
%Converting the x axis from sample numbers to time
x = 1:length(speech);
t = x./fs; t
%*******************************************************
%Plotting the file
%*******************************************************
figure;
subplot(2,1,1);
plot(t, speech);
xlabel('Time (seconds)');
ylabel('Amplitude');
title('Waveform for a Male Speech Signal with a Sampling Frequenvy of 16KHZ');
axis([0 max(t) -1 1]);
subplot(2,1,2);
plot(t, speech1);
xlabel('Time (seconds)');
ylabel('Amplitude');
axis([0 max(t) -1 1]);
%******************************************************* %
%*******************************************************
%Displaying voiced and unvoiced speech segments
%*******************************************************
%Detecting voiced and unvoiced segments based on energy %
%Computing the frame-by-frame energy of the signal