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That aside, for me the test is quite simple. I think Ethan is being a bit disingenuous by not being up front about his commercial bias. Or to have too much of a size requirement to address the 30-40Hz region. Similarly anyone could easily test physical treatments and show them to operate in only a limited area too. Anyone with with a little knowledge can make any system fail to deliver, particularly when by asking it to do things it cannot. typical 1/2 space LF Eqs and HF tailoring. BUT tonal shaping over a broad band or shelf is also effective THROUGHOUT the room. The spatial robustness of the LM EQ will diminish as frequency increases. The amount of mitigation you claim as only a few %, I have tested up to 25%, a member here has shown nearly 50%, I will ask him to join us. In well known reality Eqing the lowest mode softens the peaks, shallows the nulls, and shortens the Decay THROUGHOUT the room. Some of your generic assertions as to only localised benefit are just simply wrong.
DIRAC LIVE TARGET PROFESSIONAL
To provide some balance it think it fair to point out that your Dirac investigation and publications is highly flawed in my professional opinion as an Acoustician and as a daily user of DL in my career as a Legendary Recording Engineer. Are we measuring the right things? Could the benefits of Dirac Live be shown by measuring a single speaker? Or, do we need to measure the interaction of speaker pairs to see the benefits of the impulse adjustments?.I would like to see more discussion on this, and I'll offer some thoughts to get things going: Being skeptical of whether we can hear absolute phase, I am unsure how this benefits us. So far, that claim has been made because Dirac can use all-pass filters to adjust the phase response without altering the frequency response. That said, Dirac supporters (and Dirac themselves) claim that the corrections they make lead to audible benefits even if you can't see it in the frequency response. It's great to see someone put the theory to the test and measure the listening window with EQ applied. Most who follow Floyd Toole's work recognize the overarching theme, which he described in his book and which we discussed with him directly on AVS. I've shared this link on other forums and the reaction has been mixed. (by the way, Anderson, the Insert Media window has a bug – the OK button displays "Read More", see attached)