Difference between revisions of "HW1.1 Emily Blount ECE301Fall2008mboutin" - Rhea

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-%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

Revision as of 15:30, 5 September 2008