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Upon further reflection...

You said that the idea of using broadband diffusors is "to send different frequencies different directions to ensure they reach the listening position at different times."

I disagree.

While there is some frequency-dependent variation in reflection characteristics, if anything that is an undesirable rather than desirable feature of diffusors. That's why "broadband" rather than "narrow band" diffusors are preferred. I don't think the arrival times of different frequency components of reflections is significantly altered, and I also don't think it would matter much anyway. A millisecond or two this way or that won't make a difference once you're past the early reflection time interval. The ear integrates the sound power (spectral balance) of the reverberant energy, but ignores minor arrival timing differentials.

Duke


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