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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Re: cylindrical enclosure posted by Bart on January 22, 2000 at 06:30:25:
Assuming that the driver is mounted flush in the centre of the circular end, the sound wave travelling outwards to the edge will see a rapid change in the acoustic impedance at the edge. Olsons experiments were concerned with the driver mounted flush in the cylindrical surface but the CHANGE in impedance at the edge will be the same magnitude in the opposite direction and this is what matters. As a general principle, sharp enclosure edges will act as strong diffraction secondary sources which tend to smear the image, since the diffracted signals arrive fractionally after the direct signal. Rounded edges are better and a sphere the best. For more information go to
http://www.aes.org/journal/search.html
and search under Olson or diffraction
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Follow Ups
- Re: cylindrical enclosure - bon 17:09:47 01/22/00 (1)
- Re: cylindrical enclosure - John 11:01:22 01/25/00 (0)
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