Sound Files
The following are sound files for normal play, sped-up play, and one-higher-octave-pitched play respectively Media:hailpurdue_a_ECE301Fall2008mboutin.wav,
Media:hailpurdue_b_ECE301Fall2008mboutin.wav,
Media:hailpurdue_c_ECE301Fall2008mboutin.wav
Matlab Code
% ECE 301 % Jungu Choi % Mimi Boutin delta = 0.00005; t = 0:delta:0.25; UpperB = 2*9/8*2*pi*440; %Upper B UpperA = 2*2*pi*440; %Upper A UpperG = 2*9/10*2*pi*440; %Upper G UpperF = 2*4/5*2*pi*440; %Upper F UpperE = 2*3/4*2*pi*440; %Upper E UpperD = 2*27/40*2*pi*440; %Upper D UpperC = 2*3/5*2*pi*440; %Upper C B = 9/8*2*pi*440; %B A = 2*pi*440;%A G = 9/10*2*pi*440;%G F = 4/5*2*pi*440;%F E = 3/4*2*pi*440;%E D = 27/40*2*pi*440;%D C = 3/5*2*pi*440;%C %Part a) factor = 2/2; %normal speed t = 0:delta:0.25*2*factor; y = sin(G*t); t = 0:delta:0.25*factor; y1 = sin(A*t); t = 0:delta:0.25*factor; y2 = sin(B*t); t = 0:delta:0.25*3/2*factor; y3 = sin(UpperC*t); t = 0:delta:0.25/2*factor; y4 = sin(UpperD*t); t = 0:delta:0.25*factor; y5 = sin(UpperE*t); t = 0:delta:0.25*factor; y6 = sin(UpperE*t); t = 0:delta:0.25*factor; y7 = sin(UpperF*t); t = 0:delta:0.25*factor; y8 = sin(UpperF*t); t = 0:delta:0.25*factor; y9 = sin(UpperC*t); t = 0:delta:0.25*factor; y10 = sin(UpperD*t); t = 0:delta:0.25*4*factor; y11 = sin(UpperE*t); t = 0:delta:0.25*2*factor; y12 = sin(UpperE*t); t = 0:delta:0.25*3/2*factor; y13 = sin(UpperE*t); t = 0:delta:0.25/2*factor; y14 = sin(UpperD*t); t = 0:delta:0.25*3/2*factor; y15 = sin(UpperC*t); t = 0:delta:0.25/2*factor; y16 = sin(UpperD*t); t = 0:delta:0.25*factor; y17 = sin(UpperE*t); t = 0:delta:0.25*factor; y18 = sin(UpperE*t); t = 0:delta:0.25*factor; y19 = sin(UpperD*t); t = 0:delta:0.25/2*factor; y20 = sin(A*t); t = 0:delta:0.25/2*factor; y21 = sin(B*t); t = 0:delta:0.25*factor; y22 = sin(UpperC*t); t = 0:delta:0.25/2*factor; y23 = sin(B*t); t = 0:delta:0.25/2*factor; y24 = sin(A*t); t = 0:delta:0.25*4*factor; y25 = sin(UpperD*t); y = [y y1 y2 y3 y4 y5 y6 y7 y8 y9 y10 y11 y12 y13 y14 y15 y16 y17 y18 y19 y20 y21 y22 y23 y24 y25]; sound(y, 1/delta) wavwrite(y,20000,16,'hailpurdue_a') %Part b) factor = 1/2; %two times faster t = 0:delta:0.25*2*factor; y = sin(G*t); t = 0:delta:0.25*factor; y1 = sin(A*t); t = 0:delta:0.25*factor; y2 = sin(B*t); t = 0:delta:0.25*3/2*factor; y3 = sin(UpperC*t); t = 0:delta:0.25/2*factor; y4 = sin(UpperD*t); t = 0:delta:0.25*factor; y5 = sin(UpperE*t); t = 0:delta:0.25*factor; y6 = sin(UpperE*t); t = 0:delta:0.25*factor; y7 = sin(UpperF*t); t = 0:delta:0.25*factor; y8 = sin(UpperF*t); t = 0:delta:0.25*factor; y9 = sin(UpperC*t); t = 0:delta:0.25*factor; y10 = sin(UpperD*t); t = 0:delta:0.25*4*factor; y11 = sin(UpperE*t); t = 0:delta:0.25*2*factor; y12 = sin(UpperE*t); t = 0:delta:0.25*3/2*factor; y13 = sin(UpperE*t); t = 0:delta:0.25/2*factor; y14 = sin(UpperD*t); t = 0:delta:0.25*3/2*factor; y15 = sin(UpperC*t); t = 0:delta:0.25/2*factor; y16 = sin(UpperD*t); t = 0:delta:0.25*factor; y17 = sin(UpperE*t); t = 0:delta:0.25*factor; y18 = sin(UpperE*t); t = 0:delta:0.25*factor; y19 = sin(UpperD*t); t = 0:delta:0.25/2*factor; y20 = sin(A*t); t = 0:delta:0.25/2*factor; y21 = sin(B*t); t = 0:delta:0.25*factor; y22 = sin(UpperC*t); t = 0:delta:0.25/2*factor; y23 = sin(B*t); t = 0:delta:0.25/2*factor; y24 = sin(A*t); t = 0:delta:0.25*4*factor; y25 = sin(UpperD*t); y = [y y1 y2 y3 y4 y5 y6 y7 y8 y9 y10 y11 y12 y13 y14 y15 y16 y17 y18 y19 y20 y21 y22 y23 y24 y25]; sound(y, 1/delta) wavwrite(y,20000,16,'hailpurdue_b') %Part c) factor = 2/2; %two times faster xfactor = 2; t = 0:delta:0.25*2*factor; y = sin(G*t*xfactor); t = 0:delta:0.25*factor; y1 = sin(A*t*xfactor); t = 0:delta:0.25*factor; y1 = sin(A*t*xfactor); t = 0:delta:0.25*factor; y2 = sin(B*t*xfactor); t = 0:delta:0.25*3/2*factor; y3 = sin(UpperC*t*xfactor); t = 0:delta:0.25/2*factor; y4 = sin(UpperD*t*xfactor); t = 0:delta:0.25*factor; y5 = sin(UpperE*t*xfactor); t = 0:delta:0.25*factor; y6 = sin(UpperE*t*xfactor); t = 0:delta:0.25*factor; y7 = sin(UpperF*t*xfactor); t = 0:delta:0.25*factor; y8 = sin(UpperF*t*xfactor); t = 0:delta:0.25*factor; y9 = sin(UpperC*t*xfactor); t = 0:delta:0.25*factor; y10 = sin(UpperD*t*xfactor); t = 0:delta:0.25*4*factor; y11 = sin(UpperE*t*xfactor); t = 0:delta:0.25*2*factor; y12 = sin(UpperE*t*xfactor); t = 0:delta:0.25*3/2*factor; y13 = sin(UpperE*t*xfactor); t = 0:delta:0.25/2*factor; y14 = sin(UpperD*t*xfactor); t = 0:delta:0.25*3/2*factor; y15 = sin(UpperC*t*xfactor); t = 0:delta:0.25/2*factor; y16 = sin(UpperD*t*xfactor); t = 0:delta:0.25*factor; y17 = sin(UpperE*t*xfactor); t = 0:delta:0.25*factor; y18 = sin(UpperE*t*xfactor); t = 0:delta:0.25*factor; y19 = sin(UpperD*t*xfactor); t = 0:delta:0.25/2*factor; y20 = sin(A*t*xfactor); t = 0:delta:0.25/2*factor; y21 = sin(B*t*xfactor); t = 0:delta:0.25*factor; y22 = sin(UpperC*t*xfactor); t = 0:delta:0.25/2*factor; y23 = sin(B*t*xfactor); t = 0:delta:0.25/2*factor; y24 = sin(A*t*xfactor); t = 0:delta:0.25*4*factor; y25 = sin(UpperD*t*xfactor); y = [y y1 y2 y3 y4 y5 y6 y7 y8 y9 y10 y11 y12 y13 y14 y15 y16 y17 y18 y19 y20 y21 y22 y23 y24 y25]; sound(y, 1/delta) wavwrite(y,20000,16,'hailpurdue_c')
