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| − | <p>%HW 1 ECE 301 | + | <p>%HW 1 ECE 301 |
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%Jeff Gaines | %Jeff Gaines | ||
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%REGULAR SPEED | %REGULAR SPEED | ||
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%bpm = 112 = 1.867 bps | %bpm = 112 = 1.867 bps | ||
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delta = 0.00005; | delta = 0.00005; | ||
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half = [0:delta:0.933]; | half = [0:delta:0.933]; | ||
Revision as of 16:02, 11 January 2011
%HW 1 ECE 301 %Jeff Gaines %REGULAR SPEED %bpm = 112 = 1.867 bps delta = 0.00005; half = [0:delta:0.933]; dottedquarter = [0:delta:0.7]; quarter = [0:delta:0.4666]; eighth = [0:delta:0.2333];
%Notes used
quarter_g = sin(2*pi*(2^(-1/6)*440)*quarter);
quarter_bf = sin(2*pi*(2^(1/12)*440)*quarter);
dottedquarter_c = sin(2*pi*(2^(1/4)*440)*dottedquarter);
eighth_df = sin(2*pi*(2^(1/3)*440)*eighth);
half_c = sin(2*pi*(2^(1/4)*440)*half);
half_g = sin(2*pi*(2^(-1/6)*440)*half);
%Note sequence (I made the last note a half G instead of quarter G since it
%sounds more like the song)
melody = [quarter_g, quarter_bf, dottedquarter_c, quarter_g, quarter_bf, eighth_df, half_c, quarter_g, quarter_bf, dottedquarter_c, quarter_bf, half_g];
sound(melody, 1/delta)
wavwrite(melody, 1/delta, 32, 'regular.wav');
pause(8)
%FAST SPEED
delta = 0.00005;
half = [0:delta:0.4665];
dottedquarter = [0:delta:0.35];
quarter = [0:delta:0.233];
eighth = [0:delta:0.116];
%Notes used
quarter_g = sin(2*pi*(2^(-1/6)*440)*quarter);
quarter_bf = sin(2*pi*(2^(1/12)*440)*quarter);
dottedquarter_c = sin(2*pi*(2^(1/4)*440)*dottedquarter);
eighth_df = sin(2*pi*(2^(1/3)*440)*eighth);
half_c = sin(2*pi*(2^(1/4)*440)*half);
half_g = sin(2*pi*(2^(-1/6)*440)*half);
%Note sequence
fast_melody = [quarter_g, quarter_bf, dottedquarter_c, quarter_g, quarter_bf, eighth_df, half_c, quarter_g, quarter_bf, dottedquarter_c, quarter_bf, half_g];
sound(fast_melody, 1/delta)
wavwrite(fast_melody, 1/delta, 32, 'fast.wav');
pause(5)
%HIGHER PITCH
delta = 0.00005;
half = [0:delta:0.933];
dottedquarter = [0:delta:0.7];
quarter = [0:delta:0.4666];
eighth = [0:delta:0.2333];
%Notes used
quarter_g = sin(4*pi*(2^(-1/6)*440)*quarter);
quarter_bf = sin(4*pi*(2^(1/12)*440)*quarter);
dottedquarter_c = sin(4*pi*(2^(1/4)*440)*dottedquarter);
eighth_df = sin(4*pi*(2^(1/3)*440)*eighth);
half_c = sin(4*pi*(2^(1/4)*440)*half);
half_g = sin(4*pi*(2^(-1/6)*440)*half);
%Note sequence
high_melody = [quarter_g, quarter_bf, dottedquarter_c, quarter_g, quarter_bf, eighth_df, half_c, quarter_g, quarter_bf, dottedquarter_c, quarter_bf, half_g];
sound(high_melody, 1/delta)
wavwrite(high_melody, 1/delta, 32, 'higher.wav');
pause(8)
%PART 2
[beatles, fs, bits] = wavread('Beatles.wav');
sound(beatles, fs, bits)
pause(30)
%"number 9" over and over
reverse = flipud(beatles);
sound(reverse, fs, bits)
wavwrite(reverse, fs, 32, 'reverse.wav');
pause(30)
%sounds to me like "let me on the money", but I've read in the past people
%think it says "turn me on dead man"
