Since I’ve installed 32 Synergistic Research HFTs, my slap echo and other room acoustic anomalies have abated. Each HFT appears to broaden the reflection soundwaves, probably increasing the reflection times. They certainly don’t shorten the soundwave reflection times.
In the typical concert hall, seats closest to the rear wall don’t usually sound good because of the hard rear wall surfaces with quick reflection times and in the front rows there is little reflection, nearly all direct sound.
As a music reviewer for the UCLA Daily Bruin back 45 years ago in Royce Hall, I swapped my front row ticket for rows 10 through 20 to get the best sound for a combination of direct and long reflective sound. So many people wanted the front row seats there despite the inferior sound. It was probably a visual preference for them.
In the typical concert hall, seats closest to the rear wall don’t usually sound good because of the hard rear wall surfaces with quick reflection times and in the front rows there is little reflection, nearly all direct sound.
As a music reviewer for the UCLA Daily Bruin back 45 years ago in Royce Hall, I swapped my front row ticket for rows 10 through 20 to get the best sound for a combination of direct and long reflective sound. So many people wanted the front row seats there despite the inferior sound. It was probably a visual preference for them.