| Line 1: | Line 1: | ||
| − | + | clear all;<br>clc | |
| − | + | %%Question 1. Part 1.%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | |
| + | |||
| + | bpm = 112; | ||
| + | |||
| + | delta = 0.00005; | ||
| + | |||
| + | %%Note lengths.<br>half = [0:delta:120/bpm];<br>quart = [0:delta:60/bpm];<br>eighth = [0:delta:30/bpm];<br>dotquart = [0:delta:90/bpm]; | ||
| + | |||
| + | %%Note Frequencies.<br>gfreq = 2^(-2/12)*440;<br>bffreq = 2^(1/12)*440;<br>cfreq = 2^(3/12)*440;<br>dffreq = 2^(4/12)*440; | ||
| + | |||
| + | %%Notes<br>G = sin(2*pi*gfreq*quart);<br>Bf = sin(2*pi*bffreq*quart);<br>Cdq = sin(2*pi*cfreq*dotquart);<br>Df = sin(2*pi*dffreq*eighth);<br>Ch = sin(2*pi*cfreq*half); | ||
| + | |||
| + | %%Song<br>song = [G, Bf, Cdq, G, Bf, Df, Ch, G, Bf, Cdq, Bf, G]; | ||
| + | |||
| + | sound(song, 1/delta)<br>wavwrite(song, 1/delta, '112bpm.wav')<br>pause(1); | ||
| + | |||
| + | <br>%%Question 1. Part 2.%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | ||
| + | |||
| + | bpmfast = 224; | ||
| + | |||
| + | %%Note lengths.<br>half = [0:delta:120/bpmfast];<br>quart = [0:delta:60/bpmfast];<br>eighth = [0:delta:30/bpmfast];<br>dotquart = [0:delta:90/bpmfast]; | ||
| + | |||
| + | %%Notes<br>G = sin(2*pi*gfreq*quart);<br>Bf = sin(2*pi*bffreq*quart);<br>Cdq = sin(2*pi*cfreq*dotquart);<br>Df = sin(2*pi*dffreq*eighth);<br>Ch = sin(2*pi*cfreq*half); | ||
| + | |||
| + | %%Fast Song<br>fastsong = [G, Bf, Cdq, G, Bf, Df, Ch, G, Bf, Cdq, Bf, G]; | ||
| + | |||
| + | sound(fastsong, 1/delta)<br>wavwrite(fastsong, 1/delta, '224bpm.wav')<br>pause(1); | ||
| + | |||
| + | %%Question 1. Part 3.%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | ||
| + | |||
| + | bpm = 112; | ||
| + | |||
| + | delta = 0.00005; | ||
| + | |||
| + | %%Note lengths.<br>half = [0:delta:120/bpm];<br>quart = [0:delta:60/bpm];<br>eighth = [0:delta:30/bpm];<br>dotquart = [0:delta:90/bpm]; | ||
| + | |||
| + | %%Note Frequencies.<br>gfreq = 2^(-2/12)*440;<br>bffreq = 2^(1/12)*440;<br>cfreq = 2^(3/12)*440;<br>dffreq = 2^(4/12)*440; | ||
| + | |||
| + | %%Notes<br>G = sin(4*pi*gfreq*quart);<br>Bf = sin(4*pi*bffreq*quart);<br>Cdq = sin(4*pi*cfreq*dotquart);<br>Df = sin(4*pi*dffreq*eighth);<br>Ch = sin(4*pi*cfreq*half); | ||
| + | |||
| + | %%Song<br>highsong = [G, Bf, Cdq, G, Bf, Df, Ch, G, Bf, Cdq, Bf, G]; | ||
| + | |||
| + | sound(highsong, 1/delta)<br>wavwrite(highsong, 1/delta, 'highpitch.wav') | ||
| + | |||
| + | %%Combining all songs into one.<br>combined = horzcat(1, song, fastsong, highsong); | ||
| + | |||
| + | wavwrite(combined, 1/delta, 'combined.wav') | ||
| + | |||
| + | |||
| + | |||
| + | %%Question 2. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% | ||
| + | |||
| + | [Beatles, fs, N] = wavread('Beatles.wav');<br>RevBeatles = flipud(Beatles);<br>sound(RevBeatles, fs)<br>wavwrite(RevBeatles, fs, N, 'seltaeB.wav'); | ||
| + | |||
| + | |||
| + | |||
| + | Output Files: | ||
| + | |||
| + | [[Media:112bpm.wav|112bpm.wav]] | ||
| + | |||
| + | [[Media:224bpm.wav|224bpm.wav]] | ||
[[Media:Highpitch.wav|highpitch.wav]] | [[Media:Highpitch.wav|highpitch.wav]] | ||
| Line 7: | Line 67: | ||
[[Media:Combined.wav|combined.wav]] | [[Media:Combined.wav|combined.wav]] | ||
| − | [[Media: | + | [[Media:SeltaeB.wav|seltaeB.wav]] |
Revision as of 01:21, 18 January 2011
clear all;
clc
%%Question 1. Part 1.%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
bpm = 112;
delta = 0.00005;
%%Note lengths.
half = [0:delta:120/bpm];
quart = [0:delta:60/bpm];
eighth = [0:delta:30/bpm];
dotquart = [0:delta:90/bpm];
%%Note Frequencies.
gfreq = 2^(-2/12)*440;
bffreq = 2^(1/12)*440;
cfreq = 2^(3/12)*440;
dffreq = 2^(4/12)*440;
%%Notes
G = sin(2*pi*gfreq*quart);
Bf = sin(2*pi*bffreq*quart);
Cdq = sin(2*pi*cfreq*dotquart);
Df = sin(2*pi*dffreq*eighth);
Ch = sin(2*pi*cfreq*half);
%%Song
song = [G, Bf, Cdq, G, Bf, Df, Ch, G, Bf, Cdq, Bf, G];
sound(song, 1/delta)
wavwrite(song, 1/delta, '112bpm.wav')
pause(1);
%%Question 1. Part 2.%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
bpmfast = 224;
%%Note lengths.
half = [0:delta:120/bpmfast];
quart = [0:delta:60/bpmfast];
eighth = [0:delta:30/bpmfast];
dotquart = [0:delta:90/bpmfast];
%%Notes
G = sin(2*pi*gfreq*quart);
Bf = sin(2*pi*bffreq*quart);
Cdq = sin(2*pi*cfreq*dotquart);
Df = sin(2*pi*dffreq*eighth);
Ch = sin(2*pi*cfreq*half);
%%Fast Song
fastsong = [G, Bf, Cdq, G, Bf, Df, Ch, G, Bf, Cdq, Bf, G];
sound(fastsong, 1/delta)
wavwrite(fastsong, 1/delta, '224bpm.wav')
pause(1);
%%Question 1. Part 3.%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
bpm = 112;
delta = 0.00005;
%%Note lengths.
half = [0:delta:120/bpm];
quart = [0:delta:60/bpm];
eighth = [0:delta:30/bpm];
dotquart = [0:delta:90/bpm];
%%Note Frequencies.
gfreq = 2^(-2/12)*440;
bffreq = 2^(1/12)*440;
cfreq = 2^(3/12)*440;
dffreq = 2^(4/12)*440;
%%Notes
G = sin(4*pi*gfreq*quart);
Bf = sin(4*pi*bffreq*quart);
Cdq = sin(4*pi*cfreq*dotquart);
Df = sin(4*pi*dffreq*eighth);
Ch = sin(4*pi*cfreq*half);
%%Song
highsong = [G, Bf, Cdq, G, Bf, Df, Ch, G, Bf, Cdq, Bf, G];
sound(highsong, 1/delta)
wavwrite(highsong, 1/delta, 'highpitch.wav')
%%Combining all songs into one.
combined = horzcat(1, song, fastsong, highsong);
wavwrite(combined, 1/delta, 'combined.wav')
%%Question 2. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
[Beatles, fs, N] = wavread('Beatles.wav');
RevBeatles = flipud(Beatles);
sound(RevBeatles, fs)
wavwrite(RevBeatles, fs, N, 'seltaeB.wav');
Output Files:
