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Empirical Mode Decomposition

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It decomposes a given signal into a set of intrinsic mode functions that are essentially AM/FM modul

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The Empirical Mode Decomposition is a technique to decompose a given signal into a set of elemental signals called Intrinsic Mode Functions. The Empirical Mode Decomposition is the base of the so-called “Hilbert-Huang Transform” that comprises also a Hilbert Spectral Analysis and an instantaneous frequency computation. A modified improved algorithm for the Empirical Mode Decomposition is implemented. The output is a set of AM/FM modulated signal.
To use it, it is enough to input the signal, two resolutions in dB (~50) and a step value <=1 (normally =1).

Comments and Ratings (32)


Justin Igwe


Hi I got the error

"Debug: Max-Min sequence mismatch.
Debug: Max-Min reverse sequence mismatch."
How can i solve this please?


Hz (view profile)

It really works!

easy adin

hi i'm stil at the basics of matlab but i need to implement this algorithm in a project.
based on my knowledge 3 inputs are required from the user which are the input signal, 2 resolution in dB(~50) and a step value <=1(normally =1). my question is what code should be entered based on speech processing to get the modulation frequency and modulation level.

i'll appreciate any help

kavindu zoysa

can i know what does it mean by qResol, qResid, qAlfa ?

Suja Alex

Error using rParabEmd__L (line 34) rParabEmd__L: Use with 4 inputs.

I'm getting this error.How can I correct this?Pls help me


Tim (view profile)

I assume that the Spline Toolbox is no longer required, as it no longer exists. Presumably 'spline()' in base Matlab is sufficient ?
Some example data would be a nice addition to this submission (eg from the original paper).



How do i run this files? if im not wrong X value is able to get from audioread wav file. But how do i get the other 4 value ?


sarika (view profile)

 Hello Syahrul Fithry
 I think you get that error because ,the file 'rParabEmd_L' is not in the current direcctory. To avoid that error you copy this function in your current directory and run.

Dear all.

I had used this function on a row input signal, v, i.e v= [ 1 2 3 4 5]'

so i call the function by typing rParabEmd_L(v,50,50,1)

However, this error message appears

??? Undefined function or method 'rParabEmd_L' for input arguments of type

I am pleased if anyone of the experts here could advice me on this problem.





amrit (view profile)

Fan D.Chen

This program is very helpful to me, so I have to say, thank you


Matt (view profile)

Thanks a lot !


Matt (view profile)


giusep (view profile)

I also have this error:
"Debug: Max-Min sequence mismatch.
Debug: Max-Min reverse sequence mismatch."

what does it mean?


savan (view profile)

hi sir i get error when doing emd on a signal
please send me code of emd


Ashley (view profile)

Hi I get the error

"Debug: Max-Min sequence mismatch.
Debug: Max-Min reverse sequence mismatch."

What does this mean?

I am putting in the arguments:

 rParabEmd__L(v, 50, 50, 1)

where v = [1,6,2,7,3,8,5,9,5,9,1,3,2,4,3,5,4,6,5,7,6,8,7,9,2,3]

Do you know what I am doing wrong? thanks

Beautiful! Thanks

King Maple


Di Geng

Saurabh Singh

Was looking for it. Thanks Manuel. :)

Thanks for sharing.

G.B. Yang


Raymond Chan

Its based on the paper "On the HHT, its problems, and some solutions".

Jose Ercolino

It was tagged as "companion software" by the author, but no link to a book or other package was provided. What is the book or other package to which this is the companion?

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