Revision as of 15:41, 18 January 2011 by Rgieseck (Talk | contribs)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

clc;
clear all;

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% PART 1 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

bpm = 112;
bps = bpm / 60;
spb = 1/bps;
delta = 0.00005;
t = 0:delta:3;

E = 0:delta:spb/2;
Q = 0:delta:spb;
H = 0:delta:spb*2;
DQ = 0:delta:3*spb/2;

E2 = 0:delta:spb/4;
Q2 = 0:delta:spb/2;
H2 = 0:delta:spb;
DQ2 = 0:delta:3*spb/4;

G = 391.995;
Bf = 466.164;
C = 523.251;
Df = 554.365;

smoke_on_water = [sin(2*pi*G*Q),sin(2*pi*Bf*Q),sin(2*pi*C*DQ),...
sin(2*pi*G*Q),sin(2*pi*Bf*Q),sin(2*pi*Df*E),sin(2*pi*C*H),...
sin(2*pi*G*Q),sin(2*pi*Bf*Q),sin(2*pi*C*DQ),sin(2*pi*Bf*Q),...
sin(2*pi*G*Q)];
smoke_on_water2 = [sin(2*pi*G*Q2),sin(2*pi*Bf*Q2),sin(2*pi*C*DQ2),...
sin(2*pi*G*Q2),sin(2*pi*Bf*Q2),sin(2*pi*Df*E2),sin(2*pi*C*H2),...
sin(2*pi*G*Q2),sin(2*pi*Bf*Q2),sin(2*pi*C*DQ2),sin(2*pi*Bf*Q2),...
sin(2*pi*G*Q2)];

sound(smoke_on_water,1/delta);
sound(smoke_on_water2,1/delta);
sound(smoke_on_water,2/delta);

wavwrite(smoke_on_water,1/delta,'ECEHW1_1_a');
wavwrite(smoke_on_water2,1/delta,'ECEHW1_1_b');
wavwrite(smoke_on_water,2/delta,'ECEHW1_1_c');

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% PART 2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

[beatles, Fs] = wavread('Beatles.wav');
sound(beatles,Fs);

beatles_rev = flipud(beatles);
sound(beatles_rev,Fs);
wavwrite(beatles_rev,Fs,'ECEHW1_2_b');


Media:Rgieseck_ECE301_HW1_1_a.wav
Media:Rgieseck_ECE301_HW1_1_b.wav
Media:Rgieseck_ECE301_HW1_1_c.wav
Media:Rgieseck_ECE301_HW1_2_b.wav

The first part of the Beatles song repeats "Number 9"
The reversed part repeats what sounds like mumbled garbage to me but supposedly he is repeating "Turn me on, dead man!"

Alumni Liaison

Have a piece of advice for Purdue students? Share it through Rhea!

Alumni Liaison