Recent content by Gedlee

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    Multiple Subwoofer Placement

    Depends on what the characteristics of HP filter is and how close it is to the HP of the mains. If the electrical HP is second order and the HP of the mains is more than an octave below this, then they are roughly equivalent. Thats not usually the case however. Using closed box mains is just...
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    Multiple Subwoofer Placement

    Hi Andy One thing to keep in mind is that in the LF modal region the room dominates everything and as such there can be no more standard approachs than there are standard rooms - which means none. Everything is optional to achieve what works. There are certainly some "rules", like multiple...
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    3D audio report

    Could we move the discussion of "techniques" to the appropriate thread. I design for stereo - it still seems to me to be the standard.
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    3D audio report

    I was not restricking my thoughts to ambiosonics. I would always design for standard stereo since I don't think that ambiosonics can support a custom speaker design.
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    3D audio report

    An abrupt change in directivity - not smooth at all.
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    Standardization And The Use Of Audyssey

    Markus Agreed. But what to do in the situation where these approaches are not used? Its important to know where the technology should go, but its just as important to deal with it as it exists today. I would seriously doubt that "standardization" will ever happen.
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    3D audio report

    They have an Achiles Heal that you never hear about and that is efficiency. Their efficiency drops with frequency-squared and isn't all that good at 1 kHz. So lets say it takes 1 watt at 1 kHz to get a reasonable level, then at 100 Hz it takes 100 watts (for just a "resonable level", nothing...
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    3D audio report

    Hey John - welcome. I just joined your forum. I like a lot of your writtings if for just the humor. As Prof Cheri says, directivity determines limit of crosstalk cancellation. The algorithims can only go so far and after that every7thing comes down to directivity. He wants me to...
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    Multiple Subwoofer Placement

    The vibration cancellation could be a good thing, but beyond that I don't see any advantage to using pairs. I've never done IB so I don;t have a lot of experience to draw on.
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    Multiple Subwoofer Placement

    I have a sub behind the listening position, its not a problem. This sub should be setup last since the last sub added is usually ste at the lowest gain.
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    Magnets in Audio: How Do They Work?

    If you have analog components with long leads, or known RFI problems, then these would be a good idea since the VHF stuff could cause problems. But if you are like me and only run external signals that are either digital or high level signals (speaker leads) then the chance of any RFI problems...
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    How The Ear Works

    Generally the sound of shows in Vegas is good, but one time my enjoyment of "Phantom of the Opera" was ruined by poor sound. The Beatles show was superb! First rate audio. But we are off the topic - it seems like the topic kind of got stale.
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    How The Ear Works

    Once again I completely concur with Ethan. What we must ALL remember is that live acoustic instruments are not the only types of musical performances that exist. In so many discussions that I see, this underlying assumption is present. In a recent test between the Orions and some...
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    How The Ear Works

    The study was done in Japan. Based on what I know of Honda engineering, it was a well controlled and executed study. IMO opinion Honda are the very best at what they do. What you are talking about are US based marketing studies - kind of the automotive equivalent of selling Monster Cable.
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    How The Ear Works

    One of my favaorites is a Honda study where they had listeners listen to cars as they showed a film of the drive. They asked the subjects to rate the sound quality. Then they mixed up the sound and video. The scores tracked the video perfectly.
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