MDI interference peaks when target and interferer share symmetric offsets.

Evidence

Changing the position at which the pressure variation is observed will change the time relationships between the waves being combined. Therefore, the composite result from correlated sources is dependent on position. It will also depend on frequency because the effective phase shift caused by a time delay is proportional to frequency. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 241 (#expands, via linked claim)

Categorization

Category: Causal Relationships

Related

• Interference pattern of correlated sources varies with both listener position and frequency (similarity 0.83)
• Delayed correlated sources produce frequency-dependent comb filtering (similarity 0.82)
• Phase relationships between subcomponents shape a source’s radiation pattern (similarity 0.81)
• Masking interference is strongest when interferer and target match spectral distance from the masker (similarity 0.81)
• Path-length differences between correlated sources create spatial interference zones with silent spots. (similarity 0.80)
• A distant interferer tone can disrupt target detection via across-frequency MDI. (similarity 0.80)

Broader Connections

• A finite source-to-wall distance creates a destructive interference null at the half-wavelength frequency #exemplifies (0.80)
• Interference pattern of correlated sources varies with both listener position and frequency #expands (0.75) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 241