I have a few questions, if I may.
In the step that reads “Configure your Audio Input in System Settings to use SoundFlower. Make
sure you check off the Continuous Transmission and Remove Background
Noise.” is that a copy/paste error? Did you intend for the final sentence to be part of one of the steps for configuring TeamSpeak?
In the MIDI Audio Devices setup, you indicate “Check the Drift Correction.” Your attached screenshot shows drift correction set only for Built-in Output. However, when I follow the steps, drift correction sets itself automatically for Soundflower (2ch). Could you please clarify, does drift correction need to be set for only Built-in Output as per your screen shot, and for nothing else?
In your screen shot for the System Preferences Sound settings, you have Multi-Output Device that is set to Aggregate device. Is that something we need to concern ourselves with for purposes of this setup?
The Soundflower link you included is not the most current version of Soundflower, nor is it a version of Soundflower “approved” for El Capitan. Does the version of Soundflower matter for this setup? Note: I can not get the version of Soundflower that you linked to install on my system running El Capitan 10.11.6, so I installed 2.0b2 (as per this link).
Why do you set up a Playback device for the SoundFX identity? Playback is for listening, and that identity shouldn’t have to listen for anything.
When I follow your steps (with the exception of installing Soundflower 2.0b2 instead of 1.6.6b, because as I mentioned above 1.6.6b won’t install on my system), after I connect to my TeamSpeak server with the SoundFX identity in a new tab, the audio cue “Connected” plays over my Mac speakers. That seems like it shouldn’t be happening. And after that, when I start Syrinscape, all Syrinscape audio also plays over my Mac speakers. Any advice?