FMOD - FMOD Studio is an audio middleware solution and engine for games.
GitHub - Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
SoLoud - Easy to use, free, portable c/c++ audio engine for games.
GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
OpenAL - OpenAL is a cross-platform 3D audio API appropriate for use with gaming applications and many other...
BitBucket - Bitbucket is a free code hosting site for Mercurial and Git. Manage your development with a hosted wiki, issue tracker and source code.