KFRlib

KFRlib is an open-source cross-platform C++ DSP framework written in C++. It is covered by a dual GPL/commercial license.

KFRlib
Developer	KFRlib
Stable release	6.1.1 / January 13, 2025 (2025-01-13)
Written in	C++
Operating system	OS X, Linux, Microsoft Windows, iOS, Android
Type	library or framework
License	Proprietary, GPL
Website	www.kfrlib.com

Official support

Supported platforms

KFR is supported on the following platforms.

• Mac OS X
• Linux
• Microsoft Windows
• iOS
• Android

Supported compilers

• Xcode 6.3 and later
• Clang 3.6 and later
• Visual Studio 2015 using LLVM-vs2014 toolkit

Features

• Optimized for ARM NEON, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2 instruction sets
• Fast Fourier transform
• Convolution
• Finite impulse response filters
• Infinite impulse response filters
• Digital biquad filter
• Sample rate conversion
• Window function
• Goertzel algorithm
• Digital delay line
• Pseudorandom number generator
• SIMD versions of many C mathematical functions

External links

• Official website
• kfr on GitHub