You'll soon find out it's a lot easier to just travel a portable computer ( to the area under test ) while using a USB mic for most of your data captures.
Leaving the laptop at the mic location would make it difficult to adjust and equalize the room. That is why the extension to the mic. Ideally the mic would be positioned at the center of the room, to start at least and verified at a couple of points in addition. Guesstimating the room is 30-40sq' (will measure more exactly if I'm going to do the job).
You might buy from the App Store
"Remoter VNC" to see if you can get it to work ( ie; control REW hosted on your desktop Mac > from your iPad ).
- That would be a good start .
As to your points, thanks for your suggestions, but I already have what works! I can hopefully set up and characterize the room from the mic position using an external generator, then just get a window moved out to a remote display on the iPad. What I would need from your program to make it sweeter would be a secondary display screen that I can move to the iPad's remote display. Failing that, I can move the whole screen to the iPad while leaving the laptop at or near the mic.
Some functionality may even allow control from the iPad in that case (full screen on iPad). In the case of an external generator and matching up the generator to the correct crest factor of the signal (which is why I want to test closed loop to verify, BTW), I should be good to go. If I use a pink noise test with a CF of 6dB, it seems that that should be good for REW to map the room, right?
I have an app that displays a window of the Mac on the iPad via wifi. Check out
DuetDisplay for Mac and PC for a full description and free trial. Their free corresponding app is available on iPad. Basically you share a window on either OS video output to the iPad over wifi connection. I found it very useful. It was written by a couple of Apple engineers.