%Emily Blount %Homework 1 %September 4, 2008 %ECE 301, Mimi Boutin
%clear memory and console clear; clc;
%Part a: Playing Twinkle Twinkle Little Star (since I don't know Hail Purdue.)
% Note Frequencies C = 261.626; D = 9*C/8; E = 5*C/4; F = 4*C/3; G = 3*C/2; A = 5*C/3; B = 15*C/8; Chi = 2*C;
%Array of Notes for Song S = [C, C, G, G, A, A, G, F, F, E, E, D, D, C];
%Time definition and Sampling Frequency delta = 0.00005; endtime = 0.5; t = 0:delta:endtime;
%Playing the song for x = 1:1:length(S)
song = sin(2*pi * t * S(x)); sound(song, 1/delta);
end
pause(5)
%Part b: Playing the song 2x faster delta = 0.00005; endtime = .25; t = 0:delta:endtime;
%Playing the song for x = 1:1:length(S)
song = sin(2*pi * t * S(x)); sound(song, 1/delta);
end
pause(5)
%Part c: Rescaling song to y(t)=x(2t) delta = 0.00005; endtime = 0.5; t = 0:delta:endtime;
%Playing the song for x = 1:1:length(S)
song = sin(2*pi * 2* t * S(x)); sound(song, 1/delta);
end
