Demonstrating multiple stereo miking techniques for 360 degree recording

I took some time recently to test five stereo recording techniques for recording in 360 degrees, where the musicians are in a circle facing inward. This might not be an arrangement you would want to produce in a studio, necessarily, but it certainly might occur in live performance situations.

In the following video, I demonstrate:

a spaced pair of omnis (at 30cm)
the same spaced pair with four cardioid solo spot mics
four independent cardioids in two different configurations, including double XY
omni mid/side

I discuss phase issues and comb filtering, and I test mono compatibility of three mic techniques.

Reference

https://sengpielaudio.com/Fragen08.htm

Hardware

2 x Schoeps MK2H
2 x Austrian Audio OC818
Cranborne 500R8 w/Camden 500 preamps
Behringer ADA8200
Zoom F8n Pro

Software

Harrison Mixbus 10

Timestamps

00:00 intro, caveats, apologies
02:00 recording environment
02:56 goals
03:28 stereo mic configs
04:07 noise rejection in 360 degrees
05:28 spaced pair of omnis
06:19 multi-pattern LDCs
07:52 "four cardioids" (silly config)
10:18 double XY
11:40 omni mid-side
13:35 Sengpiel SRA calculator
22:40 test recordings
24:23 listening
25:05 stereo phase scope
28:55 spaced pair of omnis
31:56 spaced pair of omnis w/spots
34:36 "four cardioids" (still silly)
36:38 double XY
38:47 omni mid-side
42:42 mono compatibility
44:08 mono spaced pair
45:31 mono double XY
47:13 mono omni mid-side
48:30 closing (not a conclusion)