Appreciate helping me with this lab assignment.
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Walter Roberson
2020 年 6 月 15 日
for t = 0:time-1
xn=wrectT*cos(2*pi*f*t);
end
Every iteration of that loop, you overwrite all of xn .
for t = 0:time-1
xn(t+1) = wrectT*cos(2*pi*f*t);
end
Your code also needs to take into account sampling frequency. You need to sample at least twice as fast as your highest frequency note.
time=500;%half a second(0:500msec)
That implies you are thinking in terms of sampling once per millisecond, However, millisecond is only 1000 Hz and your last major cord is at 523.251130601197 Hz, so your sampling frequency needs to be above 1047 Hz.
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