File:Beatles message.wav - Rhea

%Zachary J. Graber %ECE 301 HW1

%PART 1

clear clc delta = 0.00005; whl = 112/60; %whole note length

%normal play th = 0:delta:(whl/2); tq = 0:delta:(whl/4); te = 0:delta:(whl/8); tdq = 0:delta:(whl/4+whl/8); n = zeros(1,(whl/8)/delta);%blank space at end of melodies

g = sin(2*pi*392*tq); bflat = sin(2*pi*466.16*tq); c = sin(2*pi*523.25*tdq); dflat = sin(2*pi*554.37*te); chalf = sin(2*pi*523.25*th);

part1 = [g,bflat,c,g,bflat,dflat,chalf,g,bflat,c,bflat,g,n];

%double speed th = 0:delta:(whl/4); tq = 0:delta:(whl/8); te = 0:delta:(whl/16); tdq = 0:delta:(whl/4+whl/8)/2; g = sin(2*pi*392*tq); bflat = sin(2*pi*466.16*tq); c = sin(2*pi*523.25*tdq); dflat = sin(2*pi*554.37*te); chalf = sin(2*pi*523.25*th);

part2 = [g,bflat,c,g,bflat,dflat,chalf,g,bflat,c,bflat,g,n];

%higher pitch th = 0:delta:(whl/2); tq = 0:delta:(whl/4); te = 0:delta:(whl/8); tdq = 0:delta:(whl/4+whl/8);

g = sin(4*pi*392*tq); bflat = sin(4*pi*466.16*tq); c = sin(4*pi*523.25*tdq); dflat = sin(4*pi*554.37*te); chalf = sin(4*pi*523.25*th);

part3 = [g,bflat,c,g,bflat,dflat,chalf,g,bflat,c,bflat,g,n];

song = [part1, part2, part3]; wavwrite(song,1/delta,'smoke_on_the_water');

%PART2 [beatles, fs] = wavread('Beatles.wav'); reverse = flipud(beatles); wavwrite(reverse,fs,'beatles_message')

%To me the reverse message sounds like "Let me on dead man" or "Turn me on dead man"