Dr Huge Longjohns wrote:
Sam, can you talk us through the whole signal/processing chain for these songs, they're beautifully clear and open sounding.
Well, I'm glad you like them! The recording wasn't at all complicated, just David sat down playing and singing, and Jenna facing him maybe ten feet away. 
It was a while ago but from memory, I think I pretty much decoded the Soundfield to a single figure-8 mic for the vocal, and a pair of crossed figure-8s for the guitar. (Imagine a cube standing on one corner, arranged so that one face is pointing at the mouth and the two next to it towards the guitar.) I don't think there is any fancy processing on the decoded guitar or the vocal track, probably a bit of light compression and some reverb, and some automation on the vocal.
Mixing Jenna's vocal was more difficult because I only noticed after the fact that that mic made her sound oddly lispy in places. In retrospect I should have used a different mic and had her sing a bit closer to it. Oh well.
I think what's most important actually is to find a way to record acts like this in a way that they are comfortable with -- so not making them use headphones, or record the guitar first and then overdub their vocals. If you don't get a good performance out of them then the technical side is irrelevant.