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HIIR

This used to be a fork of the HIIR library by Laurent De Soras, "an oversampling and Hilbert transform library in C++", with some new files that add support for double precision floating point numbers and AVX instructions, making the library able to work with:

  • 8 interleaved channels of single precision floating point data (using AVX instructions).
  • 4 interleaved channels of double precision floating point data (using AVX instructions).
  • 2 interleaved channels of double precision floating point data (using SSE2 instructions).

The original HIIR library is already able to work with:

  • 4 interleaved channels of single precision floating point data (using SSE or Neon instructions), see Upsampler2x4xSse.hpp and Upsampler2x4xNeon.hpp.

As of March 2020 this functionality has been merged in the official release of HIIR, version 1.30, which also supports

  • 16 interleaved channels of single precision floating point data (using AVX512 instructions).
  • 8 interleaved channels of double precision floating point data (using AVX512 instructions).

This repository has been updated to version 1.30, but is header-only, and does not contain the test folder.

As of April 2021 I added support for double precision floating point data using Neon on ARM AArch64, making the library able to work with:

  • 2 interleaved channels of double precision floating point data (using Neon instructions).

For usage instructions see the original library readme: readme.txt.

For a crossplatform wrapper around this library - and more -, see oversimple.