Matlab

[Laure]

Hi

My teacher asked me to program this thanks to Matlab, but I am not able to understand anything: "Indeed, we first compute

the short-time magnitude spectrum and phase spectrum of

the segment in a neighborhood (32 ms) of the sample

Note that the spectra are obtained through first multiplying

the segment by a 256-point Hamming window followed by

performing fast Fourier transform (FFT) analysis. Moreover,

such operations are carried out for each sample. Second, we

compute the short-time magnitude spectra of four neighboring

segments which overlap with the original segment by 12 or

24 ms (i.e., two of the neighboring segments are obtained by

shifting the analysis window 8 ms back and forth into the

past and into the future, and two others 20 ms into the past

and into the future). Third, we generate a “smooth” magnitude

spectrum by taking the minimum of the five magnitude spectra

for each frequency bin."

Does anyone know how to do that?

Thanks

Laure

[Cap'n Refsmmat]

By not understanding anything, do you mean you don't understand what it wants you to do (like what a Hamming window is) or you don't understand how to do it in Matlab?

[Sayonara]

Stop posting the same thread over and over.

 

Your other threads on this topic have been deleted as duplicates.

[Laure]

I have no idea how to implement this thank to Matlab.

I am sorry, but I din't know how this site worked, so I think I made bad manipulations

Thank you

Laure