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

Open Source Audible Manager

C++ Audio Plug-in Framework for desktop, mobile and web [PRE-RELEASE]

Enhanced version of Cockos' iPlug - A simple-to-use C++ framework for developing cross platform audio plugins and targeting multiple plugin APIs with the same code. VST / VST3 / Audiounit / RTAS / AAX (Native) formats supported. NOTE: THIS IS OBSOLETE, PLEASE SEE IPLUG2:

Convert Audible's .aax filetype to MP3, FLAC, M4A, or OPUS

Source code for SonoBus, a real-time network audio streaming collaboration tool.

A user interface toolkit mainly for audio plug-ins

Convert Audible aax files to mp3 and m4a/m4b

Audio plugin framework. VST2/VST3/AU/AAX/LV2 for Linux/macOS/Windows.

Various resources related to developing plugins for audio production.

Fast Audible AAX to M4A converter

The Open Source Audible Converter

Audible audio book converter which actually works!

A command line interface for audible package. With the cli you can download your Audible books, cover, chapter files.

Audio plugin that lets you use MIDI to pitch-shift via delay to turn unpitched audio into melodies

Creates DRM free copies of Audible AAX audio books in both M4B and per chapter MP3/M3U, retaining all metadata including cover image. Supports re-encoding, parallel MP3 encoding and batch jobs.

Python script to convert AAX files to MP3

Split AAX files from Audible into multiple MP3 files by chapter using ffmpeg.

AAX to MP3 converter and MP3 splitter by chapters

Convert aax to ogg audio format

A public wiki containing lessons learned about audio plugin hosting and development.

Audible Checksum Bruteforcer