I think I asked on the Facebook group for ideas for bringing audio from other apps, like the browser, into Rack. I’m on Windows, and I’ve used Jack before with Reason. But it was confusing to set up. I was never quite sure what I was doing with it. I tried setting it up again this time with Rack and gave up. I didn’t have the energy to figure it out. When I posted on Facebook, folks suggested a couple of other “virtual audio cables.” I tried a two yesterday and today.
First, I tried Virtual Audio Cable from Eugene Muzychenko. It wasn’t too difficult to figure out, but Rack froze and crashed copiously as I attempted to configure the Core Audio module to use it. On a whim, today, I tried unchecking the options in the Sound Control Panel to “allow applications to take exclusive control” of both Virtual Audio Cable and my PreSonus ASIO drivers. That seems to have alleviated the freezing and crashing.
But then I uninstalled it and installed another product, VB-Cable to try it out. VB-Cable is only $5 for my purposes. Even though it hasn’t been updated in three years, it seemed happy enough on my Windows 10 box. And it offers 24bit options while Virtual Audio Cable topped out at 16bit.
Both of them do experience a weird behavior in Rack. For the Audio IN Core Audio module, I have to set the block size to the highest value, 4,096 or I get this weird vibrating, flanging-like effect. It is most noticeable at the middle settings like 256 and 512. At the lowest setting, 64, it is still audible. Only at 4,096 is it not particularly noticeable.
Maybe this is due to the way Rack processes audio chunks, which apparently is different from the way typical DAWs do so?