Recent content by youngho

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    Interesting paper on small-room "reverberation" and a few thoughts

    https://users.aalto.fi/~ktlokki/Publs/JASMAN_vol_146_iss_5_3562_1.pdf Selected excerpts: "Ten assessors participated in the experiment as volunteers. The assessors are considered as expert listeners, with an average experience of 11.4 years [standard deviation (s.d.) 6 5.5] in acoustics...
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    Photos of rooms with acoustic treatment products

    I had also noticed the ceiling in the interrogation room in the television show Legion and wondered if it was also inspired by primitive root diffusers:
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    Any CBT owners here?

    They are a combination product: https://www.artnovion.com/product-categories/6-absorption/products/23-siena-w-absorber. Honestly, the website didn't used to have complete information, so I wasn't able to use it for the original purpose that I intended.
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    Ultimate 1ET400A Purifi Amplifier sonic shootout - €820 to €8,344

    In case anyone is interested: https://www.soundstagehifi.com/index.php/opinion/1482-the-purifi-puzzle-part-one-the-measured-performance-of-the-eigentakt-amplifier
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    Diffusing 1st reflections of speakers that measure great on and off-axis - instead of absorbing

    Apologies, Bill Waslo: https://www.diyaudio.com/forums/room-acoustics-and-mods/326055-ambience-tweeters-using-bmr-drivers.html
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    Diffusing 1st reflections of speakers that measure great on and off-axis - instead of absorbing

    @j_j, do you consider the "central image in your head" generally desirable as a goal, in your view?
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    Diffusing 1st reflections of speakers that measure great on and off-axis - instead of absorbing

    Ah, Duke and Brian Waslo use a different approach than you touched on in your post. You didn't actually address this approach, which is why I brought it up. The delayed signal comes from two channels placed very close to the main left and right speakers, which in both Duke's and Brian Waslo's...
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    Diffusing 1st reflections of speakers that measure great on and off-axis - instead of absorbing

    I don't think it's that trivial: https://www.audiosciencereview.com/forum/index.php?threads/diffusing-1st-reflections-of-speakers-that-measure-great-on-and-off-axis-instead-of-absorbing.14096/post-471238. It's not like all reflections would be uniformly attenuated -20dB but rather certain parts...
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    Equalizing loudspeakers based on anechoic measurements (community project)

    Yes, but what if someone likes listening to orchestral or instrumental music, other than the Toy Soldier March? Or electronic dance music (I like Thievery Corporation, though it's terribly engineered from a soundstage aspect, but Bajofondo Tango Club or Orbital do a lot of interesting things)...
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    Don’t stand so close to me

    I just wanted to clarify that the Gradient 1.4 should be positioned at least 30 cm from the wall behind them, however the OP defines "close."
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    Diffusing 1st reflections of speakers that measure great on and off-axis - instead of absorbing

    Thank you. As probably expected, the more I read, the less I realize that I can pretend to know. It seems simple to say "broadband absorption," but the density and intrinsic properties of the material, the spacing from the boundary, the angle of incidence, and the covering fabric all seem to...
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    Diffusing 1st reflections of speakers that measure great on and off-axis - instead of absorbing

    @Bjorn and @localhost127, thank you for your edifying posts. I learned a lot about your approaches, but I have a number of questions that I hope you would be so kind as to help me understand. I understand if you're otherwise occupied. 1. Could you please explain to an ignorant person like me...
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    Equalizing loudspeakers based on anechoic measurements (community project)

    I wonder whether home listener preferences are as stable across a variety of musical content or recording types, as reflected in this specific paper, which only compared two types of symphonic content. I imagine, for example, that tonality preference might come increasly into play for symphonic...
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    Diffusing 1st reflections of speakers that measure great on and off-axis - instead of absorbing

    @j_j when I read your posts, I always feel like I'm many steps behind. I think my own personal concern regarding absorbing reflections is that absorption of reflections is highly dependent on the angle, material, and fabric covering, which will likely modify the frequency spectrum of the...
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