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Math Help - Help on frequency decompositon

  1. #1
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    Help on frequency decompositon

    Uhh... I want to understand what changes happens on musical instruments when they are played at different levels of intesity so I can synthesize their nuances on comercial synthesizers.

    And for this I remember that each sound is made of a fundamental frequency and other partials and the different combinations of partial frequencies and their levels make us notice the differences of each timbre.

    Then I want to isolate samples of various instruments on various levels of intensity and decompose each frequency to check what happens when there's a raise on intensity so I can try to use this information to reproduce these nuances my synthesizers.

    But I still don't know exactly from where to start, from an ingenuous point of view, I would play these samples on FL studio, separate the frequencies with a simple EQ, render the files and then try to use this info it to simulate the instruments on synths.

    But I guess that something better can be made. Some kind of frequency decomposition or some other term I might not know.

    I'm trying to do something with FL Studio, Mathematica and Matlab, any tips?
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by gustavob View Post
    uhh... I want to understand what changes happens on musical instruments when they are played at different levels of intesity so i can synthesize their nuances on comercial synthesizers.

    And for this i remember that each sound is made of a fundamental frequency and other partials and the different combinations of partial frequencies and their levels make us notice the differences of each timbre.

    Then i want to isolate samples of various instruments on various levels of intensity and decompose each frequency to check what happens when there's a raise on intensity so i can try to use this information to reproduce these nuances my synthesizers.

    But i still don't know exactly from where to start, from an ingenuous point of view, i would play these samples on fl studio, separate the frequencies with a simple eq, render the files and then try to use this info it to simulate the instruments on synths.

    But i guess that something better can be made. Some kind of frequency decomposition or some other term i might not know.

    I'm trying to do something with fl studio, mathematica and matlab, any tips?
    fft

    cb
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  3. #3
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    I should use Fast-Fourier Transform for that?
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  4. #4
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    Can you be a little more specific, please? A small background about it would please me a lot.
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  5. #5
    Grand Panjandrum
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    Quote Originally Posted by GustavoB View Post
    Can you be a little more specific, please? A small background about it would please me a lot.
    The fast Fourier transform is a computationally efficient implementation of the discrete Fourier transform, which can be used to perform frequency analysis of sampled signals, and the rest google will tell you

    CB
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