Top 3 Auv3 Open-Source Projects

JUCE

105 6,096 9.5 C++

JUCE is an open-source cross-platform C++ application framework for desktop and mobile applications, including VST, VST3, AU, AUv3, LV2 and AAX audio plug-ins.

Project mention: 3rd Edition of Programming: Principles and Practice Using C++ by Stroustrup | news.ycombinator.com | 2024-04-19

Personally, I started by writing externals for Pure Data, then started to contribute to the care. Later I took the same path for SuperCollider.
The more typical path, I guess, would be to start with simple audio plugins. Have a look at JUCE (https://juce.com/)!
Realtime audio programming has some rather strict requirements that you don't have in most other software. Check out this classic article: http://www.rossbencina.com/code/real-time-audio-programming-...

iPlug2

4 1,798 9.4 C

C++ Audio Plug-in Framework for desktop, mobile and web
InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
AnalogTapeModel

8 1,012 6.9 C++

Physical modelling signal processing for analog tape recording

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).