frequency plot of a sound signal
scalars. default values fmin=100,fmax=1500,rate=22050,points=8192;
Make a frequency plot of the signal w
with sampling rate rate
.
The data must be at least points
long.
The maximal frequency plotted will be fmax
, the minimal fmin
.
// At first we create 0.5 seconds of sound parameters. t=soundsec(0.5); // Then we generate the sound. s=sin(440*t)+sin(220*t)/2+sin(880*t)/2; [nr,nc]=size(t); s(nc/2:nc)=sin(330*t(nc/2:nc)); analyze(s); | ![]() | ![]() |