MATLAB Tutorial - FFT Power Spectrum (Signal processing toolbox)

[Sandoora]

I'm trying to find the frequency of a existing signal. I have data points with respect to time and was wondering in this case, what would the sampling frequency be equivalent to? I'm definitely doing some part of the coding wrong because it always seems to peak at 0Hz. Thanks

[Sandoora]

@Sandoora Nevermind, it worked! I figured that the sampling frequency is the number of sample points in one second. What I was doing wrong was inputting BOTH the time and data points when I only need to input the data points and the sampling frequency takes care of the time.

[eeprogrammer]

@Sandoora Good!  Tammy@eeprogrammer

[overfarhan]

Helpful video.but SIR i need your help further in my task which is ''HOW TO CONVERT SOUND USING MATLAB

[eeprogrammer]

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[crazypyro30]

Good tutorial. I had a question though, If you were doing this with sound data that has been normalized from -1 to 1 what is the y-axis in the power spectrum? How could you get it into dB?

[eeprogrammer]

@crazypyro30 You are welcome to visit our website

[jrithodspc]

@crazypyro30 let me try it and tell thanks

[13141312]

Thanks

[YapChing1980]

Good tutorial. Thanks