A C++ header-only library, providing classes/templates for (mostly audio) signal-processing tasks.
git clone https://signalsmith-audio.co.uk/code/dsp.git
It's fairly early in development, so it's far from comprehensive, and APIs might change.
Docs are on the web: https://signalsmith-audio.co.uk/code/dsp/
Tests (and source-scripts for the above docs) are available in a separate repo:
git clone https://signalsmith-audio.co.uk/code/dsp-doc.git
The goal (where possible) is for the actual audio characteristics of the tools (e.g. frequency responses and aliasing levels).
This code is MIT licensed. If you'd prefer something else, get in touch.