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This digital signal processing library, written in the standard C language, is not better optimized for any platform.

Support windows x86 x64 arm64；linux x64 arm platfrom

It has the following APIs:

Window Functions

In order to reduce spectral energy leakage, different interception functions can be used to truncate the signal, and the truncation function is called the window function, referred to as the window. Supports 18 types of window functions.

FFT and IFFT

FFT、IFFT、Cycle Signal FFT、Real Sequence FFT  and Cycle Real Sequence Signal FFT algorithm

FIR and IIR Filter

Basic filtering algorithm, FHT fast filtering algorithm, FFT fast filtering algorithm

Digital signal processing library instructions

github