Coincident pairs produce IAD while spaced pairs produce ITD in microphone recording

Evidence

The acoustical version of amplitude panning employs coincident directional microphone pairs (e.g. Blumlein pairs) to generate interchannel amplitude differences, IAD, for musicians located at different angles in front of the microphones. Spaced omnidirectional microphones generate interchannel time differences, ITD, for musicians located at different angles. Most recordings are made using spaced microphones that are also directional, so they generate simultaneous IAD and ITD. — Toole, Floyd E, Sound reproduction- the acoustics and…, 411

Categorization

Category: Factual Claims

Related

• Coincident and spaced microphone pairs encode direction into IAD or ITD cues. (similarity 0.91)
• Coincident delayed sounds are far harder to detect than spatially separated ones (similarity 0.80)
• Surround recordings pair spaced mics one-to-one with each loudspeaker (similarity 0.78)

Broader Connections

• Coincident delayed sounds are far harder to detect than spatially separated ones #exemplifies (0.75) — Toole, Floyd E, Sound reproduction- the acoustics and…, 627