Audio Input and Task Manager
I absolutely love this app, that being said, I have been having problems. The visualizer does not want to accept input from my audio device, which is the Razer Man o' War 7.1 surround sound, nor from the default loopback device. It will accept my HDMI audio, SPIDF optical and my Man o' War microphone input.
Investigating further I found that with the reactive background enabled the animation would hang when I switched to the nonworking audio devices, but would resume where it left off when switching to my other audio devices. I have no outputs on my HDMI or SPIDF, so I effectively can not use the visualizer for anything but my microphone.
One other issue I have noticed is that the application does not close properly, and appears to still be running in background after closing. While troubleshooting the audio issue this became quite apparent when I was hitting a CPU usage of 100% and had to close out each instance of the application through task manager.