| Line 1: | Line 1: | ||
| − | + | %Jack Williams | |
| + | %ECE 301, Mimi Boutin | ||
| + | %HW 1 | ||
| + | %September 4, 2008 | ||
| + | |||
| + | %PART A ------------------------------------------------- | ||
| + | |||
| + | % Note Frequencies | ||
| + | A = 220; | ||
| + | B = 246.942; | ||
| + | C = 261.626; | ||
| + | Db = 277.183; | ||
| + | D = 293.665; | ||
| + | Eb = 311.127; | ||
| + | E = 329.628; | ||
| + | F = 349.228; | ||
| + | Gb = 369.994; | ||
| + | G = 391.995; | ||
| + | Ab = 415.305; | ||
| + | |||
| + | %Note Vector | ||
| + | NV = [A, B, Db, D, E, Gb, Gb, G, G, G, D, E, F, Gb]; | ||
| + | |||
| + | %Time definition and Sampling Frequency | ||
| + | delta = 0.00005; | ||
| + | stop_time = 0.4; | ||
| + | t = 0:delta:0.5; | ||
| + | |||
| + | %Sound Playing Loop | ||
| + | for i = 1:1:length(NV) | ||
| + | signal = sin(2*pi * t * NV(i)); | ||
| + | sound(signal, 1/delta); | ||
| + | end | ||
| + | |||
| + | %PART B ------------------------------------------------- | ||
| + | |||
| + | %stop_time cut in half | ||
| + | stop_time = stop_time/2; | ||
| + | t = 0:delta:stop_time; | ||
| + | |||
| + | %Sound Playing Loop | ||
| + | for i = 1:1:length(NV) | ||
| + | signal = sin(2*pi * t * NV(i)); | ||
| + | sound(signal, 1/delta); | ||
| + | end | ||
| + | |||
| + | %PART C -------------------------------------------------- | ||
| + | |||
| + | %stop_time Redifinition | ||
| + | stop_time = 2*stop_time; | ||
| + | t = 0 : delta : stop_time; | ||
| + | |||
| + | %Rescale from x(t) to x(2t) | ||
| + | for i = 1:1:length(NV) | ||
| + | signal = sin(4*pi * t * NV(i)); | ||
| + | sound(signal, 1/delta); | ||
| + | end | ||
Revision as of 12:48, 4 September 2008
%Jack Williams %ECE 301, Mimi Boutin %HW 1 %September 4, 2008
%PART A -------------------------------------------------
% Note Frequencies A = 220; B = 246.942; C = 261.626; Db = 277.183; D = 293.665; Eb = 311.127; E = 329.628; F = 349.228; Gb = 369.994; G = 391.995; Ab = 415.305;
%Note Vector NV = [A, B, Db, D, E, Gb, Gb, G, G, G, D, E, F, Gb];
%Time definition and Sampling Frequency delta = 0.00005; stop_time = 0.4; t = 0:delta:0.5;
%Sound Playing Loop for i = 1:1:length(NV)
signal = sin(2*pi * t * NV(i)); sound(signal, 1/delta);
end
%PART B -------------------------------------------------
%stop_time cut in half stop_time = stop_time/2; t = 0:delta:stop_time;
%Sound Playing Loop for i = 1:1:length(NV)
signal = sin(2*pi * t * NV(i)); sound(signal, 1/delta);
end
%PART C --------------------------------------------------
%stop_time Redifinition stop_time = 2*stop_time; t = 0 : delta : stop_time;
%Rescale from x(t) to x(2t) for i = 1:1:length(NV)
signal = sin(4*pi * t * NV(i)); sound(signal, 1/delta);
end
