A track or mix with weak highs; muffled as though a blanket was covering the loud speakers.
Blumlein array, английский A stereo miking technique where two coincident bi-directional mics are angled 90 degrees apart (45 degrees to the left and right of center).
Binaural recording, английский A two-channel recording made with an omnidirectional microphone in each ear of a human or a simulated head for playback over headphones. the object is to represent sound as closely as possible at all frequencies.