Synchronous Audio Router - Routes Windows application audio to and from your digital audio workstation software.
Voicemeeter - Audio Processing and Audio Programming by V.Burel
Virtual Audio Cable - Ever wanted to record your speaker output? (loopback) This is for you.
AudioBus - With Audiobus, the revolutionary new inter-app audio routing system, you can connect your...
Soundflower - Soundflower is a Mac OS X system extension that allows applications to pass audio to other...
SoundBunny - SoundBunny allows you to control the volume level for all open applications on your Mac.