Surround recording of a quiet suburban kitchen. The loudest thing is the fridge (hum/buzz noise that sounds similar to a fluorescent light.) Some city noise from outside, but not much.
Recorded using double MS (MMS) using two Sennheiser MKH40 mics and a MKH30 as shared Side into two Zoom H4n recorders. Decoded as standard 5.1 (L R C LFE Ls Rs), but you can also use either stereo pair as a stereo ambience.