How to use Matlab to compute and graph the frequency spectrum of a sampled time signal. More instructional engineering videos can be found at http://www.engineeringvideos.org.
This video is licensed under the Creative Commons BY-SA license http://creativecommons.org/licenses/by-sa/3.0/us/.
thanks man. very helpful
bozdnz 2 months ago
Very helpful thanks!
I've tried 2 other ways of plotting and the results from yours agree 100% with one of them. The other is faulty I suppose, although it is the fft example from the matlab page (mathworks /help/techdoc/ref/fft.html). They don't explain their way. Have you ever tried it?
nervren 3 months ago
Hey great video I was just wondering what would be the units of the y-axis? Would it be easy to convert to a sound pressure level in dB?
crazypyro30 4 months ago