A C++11 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 to measure/test 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.