Rectangular loudspeaker cabinets produce significant diffraction even with off-center drivers
Evidence
Olson (1969) also examined this condition and some of his results are shown in Figure 6.66. From Figure 6.66(a) we can see that the rectangular parallelepiped enclosure has significant diffraction effects. This is despite the fact that the driver is mounted off-center, a strategy that reduces the effect of diffraction by reducing the number of coincidence effects. — David Howard, Jamie Angus, coustics and Psychoacoustics, 2213
Categorization
- XREF: connects to: Loudspeaker enclosure shape and size alter frequency response via diffraction — David Howard, Jamie Angus, coustics and Psychoacoustics, 2198; Sound scatters or diffracts around loudspeakers based on wavelength relative to size — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 2500; Sound waves diffracting at speaker cabinet edges distort the frequency response — David Howard, Jamie Angus, coustics and Psychoacoustics, 2199 (+3 more)
Broader Connections
- Cabinet shape and driver placement materially govern diffraction distortion
#expands(0.92) - Sound waves diffracting at speaker cabinet edges distort the frequency response
#expands(0.88) — David Howard, Jamie Angus, coustics and Psychoacoustics, 2199 - Loudspeaker enclosure shape and size alter frequency response via diffraction
#expands(0.85) — David Howard, Jamie Angus, coustics and Psychoacoustics, 2198 - Bass diffraction is negligible while midrange diffraction matters in cabinet design
#qualifies(0.82) — David Howard, Jamie Angus, coustics and Psychoacoustics, 2212 - Sound scatters or diffracts around loudspeakers based on wavelength relative to size
#qualifies(0.80) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 2500 - More diffraction occurs for longer-wavelength, lower-frequency sound
#qualifies(0.75) — Eric J. Heller, Why You Hear What You Hear- An…, 180