| Re: Time Alignment [message #50120 is a reply to message #50118] |
Tue, 03 October 2006 08:53   |
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Wayne Parham
Messages: 18748
Registered: January 2001
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Illuminati (33rd Degree) |
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The sound eminates from the diaphragm, so that's the reference point, not the voice coil or magnet. Of course, the diaphragm isn't usually flat unless the speaker is planar, and that's one of the reasons why perfect alignment isn't possible. Another is reactive elements in the system, such as inductors, capacitors, mass and suspension stiffness. Yet another is chaotic elements in the system, like cone flex, electro-magnetic and suspension non-linearities. You're shooting for keeping sound sources within 1/4λ at frequencies where there is overlap between sound sources. That's the goal, because that's what keeps summing true and makes the speaker sound natural.
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