a Blumlein arrangement as one of their possible configurations. Individual microphones with variable patterns (such as those from Pearl/Milab) can be used. The Soundfield microphone used to make Ambisonic recordings can be adjusted to mimic two microphones of any pattern at any angle to each other, including a Blumlein pair.

In his early experiments at EMI with what he called "binaural" sound, Blumlein did not