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*[[Media:purduex2.wav _ECE301Fall2008mboutin| purdue x2]] | *[[Media:purduex2.wav _ECE301Fall2008mboutin| purdue x2]] | ||
*[[Media:purdue(2t).wav _ECE301Fall2008mboutin| purdue (2t)]] | *[[Media:purdue(2t).wav _ECE301Fall2008mboutin| purdue (2t)]] | ||
| + | |||
| + | |||
| + | |||
| + | |||
| + | Only did the first few seconds of the song | ||
== M-File == | == M-File == | ||
| + | <pre> | ||
| + | % Aishwar Sabesan | ||
| + | % M-file for playing "Hail Purdue" song | ||
| + | % Homework 1.1 -- ECE301 | ||
| + | |||
| + | %Part (a) ---> Playing the song | ||
| + | delta = 0.000005; | ||
| + | x = 264; | ||
| + | C = x; | ||
| + | D = 9*x/8; | ||
| + | E = 5*x/4; | ||
| + | F = 4*x/3; | ||
| + | G = 3*x/2; | ||
| + | A = 5*x/3; | ||
| + | B = 15*x/8; | ||
| + | CH = 2*x; | ||
| + | Bb = ((B-A)/2)+A; | ||
| + | |||
| + | notes = [C, D, E, F, G, A, A, Bb, Bb, Bb, F, G, A]; | ||
| + | times = [1, 0.5, 0.5, 0.75, 0.25, 0.5, 0.5, 0.4, 0.2, 0.2, 0.5, 0.5, 1]; | ||
| + | purduebuff = []; | ||
| + | for ii = 1:length(notes) | ||
| + | t = 0:delta:times(ii); | ||
| + | purdue = sin(2*pi*t*notes(ii)); | ||
| + | purduebuff = [purduebuff; purdue(:)]; | ||
| + | end | ||
| + | |||
| + | sound(purduebuff,1/delta); | ||
| + | wavwrite(purduebuff, 1/delta, 16, 'purdue.wav'); | ||
| + | pause(7); | ||
| + | |||
| + | %Part (b) --> Playing the song at 2x | ||
| + | sound(purduebuff, 2/delta); | ||
| + | wavwrite(purduebuff,2/delta,16,'purduex2.wav'); | ||
| + | |||
| + | pause(5); | ||
| + | |||
| + | %Part (c) ---> Rescaling x(t) to x(2t) | ||
| + | purduebuff = []; | ||
| + | for nn = 1:length(notes) | ||
| + | t = 0:delta:times(nn); | ||
| + | purdue = sin(2*pi*2*t*notes(nn)); | ||
| + | purduebuff = [purduebuff;purdue(:)]; | ||
| + | end | ||
| + | sound(purduebuff,1/delta); | ||
| + | wavwrite(purduebuff,1/delta,16,'purdue(2t).wav'); | ||
| + | |||
| + | pause(3); | ||
| + | </pre> | ||
Latest revision as of 09:46, 2 September 2008
Audio Files
Only did the first few seconds of the song
M-File
% Aishwar Sabesan
% M-file for playing "Hail Purdue" song
% Homework 1.1 -- ECE301
%Part (a) ---> Playing the song
delta = 0.000005;
x = 264;
C = x;
D = 9*x/8;
E = 5*x/4;
F = 4*x/3;
G = 3*x/2;
A = 5*x/3;
B = 15*x/8;
CH = 2*x;
Bb = ((B-A)/2)+A;
notes = [C, D, E, F, G, A, A, Bb, Bb, Bb, F, G, A];
times = [1, 0.5, 0.5, 0.75, 0.25, 0.5, 0.5, 0.4, 0.2, 0.2, 0.5, 0.5, 1];
purduebuff = [];
for ii = 1:length(notes)
t = 0:delta:times(ii);
purdue = sin(2*pi*t*notes(ii));
purduebuff = [purduebuff; purdue(:)];
end
sound(purduebuff,1/delta);
wavwrite(purduebuff, 1/delta, 16, 'purdue.wav');
pause(7);
%Part (b) --> Playing the song at 2x
sound(purduebuff, 2/delta);
wavwrite(purduebuff,2/delta,16,'purduex2.wav');
pause(5);
%Part (c) ---> Rescaling x(t) to x(2t)
purduebuff = [];
for nn = 1:length(notes)
t = 0:delta:times(nn);
purdue = sin(2*pi*2*t*notes(nn));
purduebuff = [purduebuff;purdue(:)];
end
sound(purduebuff,1/delta);
wavwrite(purduebuff,1/delta,16,'purdue(2t).wav');
pause(3);
