How to find the harmonics in a sound signal?

Hello Everyone,

I have recodrded sound signals for healthy and faulty conditions of an engine.

How can I plot the harmonic number in X axis and the magnitude of each harmonic in Y axis?

Regards,

NR

[Star Strider]

The findpeaks function comes quickly to mind.

How successful that will be depends on the noise in your signal, and if the noise is broadband or narrowband (frequency-limited).

[Nipuna Rajapaksha]

Hi star,

Thanks for the reply.

It is a broadband noise. I have attched a figure with this. I want to present my harmonics as shown in this figure.

Would you be able to help me?

Regards,

NR

[Ferda Ozturk]

Nipuna can you send me the code

[ABDULHADI NAFEA MHMOOD MHMOOD]

Show the dominant frequency of that Sine wave on the plotted FAS. c. Plot the variation of u= Sin(5t)+Sin(10t) harmonic motion with time and plot its FAS. Show the dominant frequencies of the motion on the FAS plot

[ABDULHADI NAFEA MHMOOD MHMOOD]

Show the dominant frequency of that Sine wave on the plotted FAS. c. Plot the variation of u= Sin(5t)+Sin(10t) harmonic motion with time and plot its FAS. Show the dominant frequencies of the motion on the FAS plot