agaelema 39 Posted September 4, 2017 Share Posted September 4, 2017 Hi, I'm working in this library with some useful DSP and math functions (ideally focusing on embedded systems). Currently it's in the initial version with few functions, but I hope to add more in the next update. I prefered to use some structs to save parameters and use just one function to various instances of filters (very versatile). Functions - High Pass Filter (Single pole): Float, fixed and fixed extended version (with more bits to fractional part) - Low Pass Filter (Single Pole): Float, fixed, fixed extended and fixed fast (with some limitations related to cuttof frequency, but more efficienty. - RMS value: calculate RMS value of an array or sample by sample. Currently using square root function of math.h, but in the next update I will add a optimized version. I hope this can be useful. Feel free to test, share and contribute with this project. Github: https://github.com/agaelema/DSP_and_Math veryalive, tripwire, bluehash and 1 other 4 Quote Link to post Share on other sites

agaelema 39 Posted September 20, 2017 Author Share Posted September 20, 2017 Hi everyone, I updated the library adding some functions: - to easily generate sine waves in a array and iteratively - goertzel dft using array data or sample by sample (very interesting because not need an array) Enjoy it Github: https://github.com/agaelema/DSP_and_Math Fmilburn, veryalive and bluehash 3 Quote Link to post Share on other sites

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