I vote on difusion. I'ts effective and easier to accomplish.
What do you want? A good spatial image, then your TV should not interfer in the sound field.
The problem with absortion is that it affects the character of the aural enviroment, changing the room frequency response. In most cases absortion turns the room acoustics dead, because it supresses echo (wich is good) and high frequencies (wich is bad). So, absortion is good to control room acoustics (primary), making it flat if desired. There are some physics and mathematical expressions that one must consider in order to make a good absorber at the desirred frequency range.
For me it looks like that you want the incident energy in the TV to be redirected so it wont affect the sound field prodiced by the speakers.
Scattering by arrays of elements is exploited in the design of broadband diffusors for auditoria and sound studios. Try build one to put in front of your TV.
Hope it helps.
What do you want? A good spatial image, then your TV should not interfer in the sound field.
The problem with absortion is that it affects the character of the aural enviroment, changing the room frequency response. In most cases absortion turns the room acoustics dead, because it supresses echo (wich is good) and high frequencies (wich is bad). So, absortion is good to control room acoustics (primary), making it flat if desired. There are some physics and mathematical expressions that one must consider in order to make a good absorber at the desirred frequency range.
For me it looks like that you want the incident energy in the TV to be redirected so it wont affect the sound field prodiced by the speakers.
Scattering by arrays of elements is exploited in the design of broadband diffusors for auditoria and sound studios. Try build one to put in front of your TV.
Hope it helps.