Simplified REW Setup and Use (USB Mic & HDMI Connection) Including Measurement Techniques and How To Interpret Graphs - Page 590 - AVS Forum | Home Theater Discussions And Reviews
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post #17671 of 17673 Old Yesterday, 07:52 AM
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Originally Posted by etc6849 View Post
Every time I've added more absorption I've had gains in sound quality. Doesn't make things sound dead at all. If anything makes things sound real, as in scarily life-like.
Amen to that. Stereo (or multichannel) is essentially made in (and therefore for) very dry (and even near-anechoic) environments. While it's true that spaciousness and envelopment is caused by reflections, these reflections should come from the recording, not the room. This is where the 'wide dispersion loudspeaker' and 'room reflections are good' theory falls flat on its face.
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post #17672 of 17673 Old Today, 07:12 AM
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I added the 8" OC 703 side panels and fixed the impulse peaks too.

For some reason when I added the side panels it messed up the waterfall. Could be because the side panels are just setting on top of the bass traps and must be wobbling at certain low frequencies.

This is very interesting, I've never had my waterfall plot look worse after adding absorption! I even rerun Dirac, and same results. Going to eliminate air gap behind panel tonight as that should stiffen it up.

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The frequency response graphs and the waterfalls are indeed impressive. The left channel ETC is showing a peculiar reflection towards the middle of the graph. Any idea what that is? Otherwise, the ETC's look nice as well. Great job!
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post #17673 of 17673 Old Today, 08:20 AM
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Might just be LF noise. Alway good to run each measurement a couple of times and verify that the results are constant over time. I always do at least two consecutive measurements.

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