Tests:

This repository contains the filters from the Surge Synthesizer as a submodule.

Current filters include:

Original Surge filters:
- LPF/HPF/BPF/Notch/APF
- "Legacy" Ladder
- Comb
- Sample & Hold
"Vintage" Ladder filters
OB-Xd filters (ported from OB-Xd)
K35 and Diode Ladder filters (ported from Odin 2)
Cutoff/Resonance Warp filters
Tri-Pole filter

For more information, see the API documentation.

Usage

sst-filters is a header-only library, so it is possible to use the library simply by adding include/ to your header search paths, and writing #include <sst/filters.h> somewhere in your source code. However, it is recommended to use the provided CMake configuration.

add_subdirectory(path/to/sst-filters)

target_link_libraries(My-Killer-App PUBLIC sst-filters)

Note: the sst-filters library uses raw SSE SIMD intrinsics. If you are planning to use this library in a context that may not support SSE intrisics, it is recommended to also link with simde.

Building Unit Tests

To build and run the sst-filters unit tests:

cmake -Bbuild
cmake --build build
./build/test-binary/sst-filters-tests

Building Examples

To build the sst-filters examples:

cmake -Bbuild -DSST_FILTERS_BUILD_EXAMPLES=ON

cmake --build build

Example binaries will be located in build/example-binaries/.

License

The code in this repository is licensed under the General Public License v3.