how to make tilde not type but just for mic

In perfect appreciation of the benefits of coincident first-order Ambisonic recording technologies in VR and field recording, the chapter gives practical examples for encoding, headphone- and loudspeaker-based decoding. While the stereo width is adjustable by MS processing, the directional mapping of first-order Ambisonics is a bit more rigid: the omnidirectional and figure-of-eight recording pickup patterns are reproduced unaltered by equivalent patterns in playback. Intensity-based coincident stereophonic recording such as XY and MS typically yields stable directional playback on a stereophonic loudspeaker pair. Hereby incident sound approximately arrives with equal delay at all microphones.

Coincident recording is based on arrangements of directional microphones at the smallest-possible spacings in between. This chapter describes first-order Ambisonic technologies starting from classical coincident audio recording and playback principles from the 1930s until the invention of first-order Ambisonics in the 1970s.

How to make tilde not type but just for mic