Edge diffraction sources can be canceled by out-of-phase speakers

Evidence

In the context of loudspeaker design it is the bounded to unbounded case that is important as this is what happens when a sound wave from a loudspeaker reaches the edge of the front face of an enclosure. In this situation, the wave is making a transition from being bounded by the front of the enclosure to being unbounded, as shown in Figure 6.63. The con­ sequential reflections cause disturbances to the frequency response of the loudspeaker because they interfere with the main output. — David Howard, Jamie Angus, coustics and Psychoacoustics, 2199 (#responds-to, via linked claim)

Categorization

• XREF: connects to: Dipole cancellation strength depends only on source spacing relative to wavelength; Adjacent opposite-phase regions on a vibrating surface cancel their radiated sound; Sound waves diffracting at speaker cabinet edges distort the frequency response — David Howard, Jamie Angus, coustics and Psychoacoustics, 2199 (+3 more)

Broader Connections

• Sound waves diffracting at speaker cabinet edges distort the frequency response #responds-to (0.78) — David Howard, Jamie Angus, coustics and Psychoacoustics, 2199