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What's new in KFR 4.0

6 December 2019

Release

IIR filter design New in KFR 4

Butterworth
Chebyshev type I and II
Bessel
Low pass, High pass, Band pass and Band stop

Conversion of arbitrary filter from Z,P,K to SOS format (suitable for biquad function and filter)

Discrete Cosine Transform support New in KFR 4

Accelerated using KFR FFT

C API New in KFR 4

DFT, DCT, convolution, IIR/FIR Filters

KFR DFT and related algorithms can now be used with any compiler and any language with ability to call C functions

Built for the following architectures, specific implementation is selected at runtime

SSE2
SSE4.1
AVX
AVX2
AVX512
x86 and x86_64

Audio files support Improved in KFR 4

KFR supports reading and writing of WAV files (including W64) and reading of MP3 and FLAC files

Supported OS/Compilers/Architectures Improved in KFR 4

macOS
Linux
Windows (including MinGW)
Android (target OS)
iOS (target OS)


Xcode
Clang
Visual Studio 2017
GCC


AVX, AVX2, AVX512 
SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2
ARM NEON, ARM64 NEON
Generic code as fallback

License

GPL 2+ or commercial