How can compile in C/C++ the lpc funciton ?

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Harper - 2021-01-09T09:44:13+00:00
Question: How can compile in C/C++ the lpc funciton ?

I am trying to compile the lpc function (Linear Predicitve Coding) in C/C++ to later include it in a CSS project in order to implement it into a Texas instrument DSP board. The LPC function can't be compile because I am getting this error: "The function 'lpc' is not supported for standalone code generation.". I did a bit of research and I understood why I am getting that. But is there a work around ? (coder.extrinsic() is not an option as I need to implement it on a DSP board later.) By looking inside the lpc function (type lpc) we can understand what is going on inside it. So why can't we compile it in C/C++ ?

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    • Expert Answer

    Profile picture of Prashant Kumar Prashant Kumar answered . 2025-11-20

    Extrinsic calls can work only when the target is mex or one is simulating in Simulink. This is because extrinsic calls are calls into the  MATLAB computation engine. No code is generated for them except what is needed to marshal the data back and forth.
    You will need to write your own LPC function and your own LEVINSON function. No reason why you can't learn how by looking at our code, but I see that LEVINSON isn't implemented as a MATLAB file, so that will take a little more work. Still, that doesn't look hard if you only need the first output from LPC.


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