How to record soundflower from OS X? I want to record the build-in sound of my Mac computer without using speakers. I want to record directly the sound of my computer. Tutorials shows me that I must do it in System Preferences, but in system preferences, I cant select the sound of my computer in entry. I can only select a microphone. Any Ideas ? I have only 1 option: use speakers
How to use build-in sound to record sound from my mac ?
Also in audacity I have not "Soundflower" option ...
Tracking down the correct forks of this semi-dead project was indeed tricky.

I installed the Kernel Extension from here:
https://github.com/mattingalls/Soundflower/releases

I installed SoundFlowerBed from this fork:
https://github.com/mLupine/SoundflowerBed/releases

That puts an item in the menu that allows you to set SoundFlower (2ch) --> Built-In Output, which then makes "SoundFlower" available in QuickTime Player etc.