Wayne Parham Messages: 18889 Registered: January 2001
Illuminati (33rd Degree)
The ceiling is probably the most important room boundary to treat. We're used to hearing sounds from all around us, so lateral reflections aren't unnatural. Same thing with the floor, every sound in nature is reflected from the ground. But reflections from the ceiling are always unwanted anomalies.
Then again, if you use a directional speaker, ceiling slap isn't nearly so much a problem as it is with a speaker having less pattern control.