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The sword has a open funnel at the end of the handle that directs air up through the hollow blade when swung properly, The blade Is also curved so air travels along the curve and joins with the air coming out of the edge of the blade which travels through the hollow. The air generates some sort of
vocalization similar to speech, using a combination of sounds generated along the blade. When the sound reaches your ear, it is assembled into a word. Possibly Shields could block these, but are instead spring loaded diaphragms that shoot blasts of sound containing air back at the opponent. The blades could be interchangeable by having multiple sheath sections that attach new vocalization patterns.
Aeroacoustics of swinging tubes
http://doc.utwente....1/aeroacoustics.pdf
[EnochLives, Dec 31 2014]
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Annotation:
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I don't think this would work as described. |
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You thought about so it mustn't work that way. |
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What way? The way you claim I thought (which I dispute anyway and deny any knowledge of since I never said I thought about it), or the way you described it? |
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It wouldn't work as desired but would still be an excellent
training tool. [+] |
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... presumably for training in Zen: |
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"The sword will work once you put aside desire, Grasshopper." |
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"Umm... he's Grasshopper; I'm Mealworm." |
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Why wont it work, it works like the mouth sounding out vowels, consonants through openings that make sound along the blade. All of these producing sound together combined with the projection should create some type of audible blend. |
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There are many reasons why many things would't work, not even the 'bakery is big enough to list them all. |
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Just that much of explanation would be enough. |
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[rcarty] You're basically asking why a woodwind can't be made
to speak English. |
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It doesn't need ot speak English it only needs to twit, or make onomatopoeia hallucinations.
^^^^^^^^^^^^^^^^^^^^
DtwitJ>>>>>>>>>TWITJ
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This reminds me of those corrugated plastic pipes one can swing in a circle to make a noise. The faster the swing the higher the pitch. I think it has to do with the resonant frequency of the tube because the different pitches are in octaves. I have considered attaching such to a motor, as one can only swing so fast with meat and bone. This would allow faster swing speeds and more pitches. |
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Actually a bicycle would be perfect! One of those "derailleur" equipped french ones. It would have to be mounted on a ledge to give the swinging tube some clearance. |
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The question then is exactly what produces the sound. On swinging the thing, I do not think air traverses the tube and blows out the front as is proposed here. Although possibly - maybe from decreased relative pressure at the distal end due to its speed? I suspect it is the length and possibly the circumference? Clearly there is work to be done with these things! |
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I do like the idea of /onomatopoeia hallucinations.
/ though am less sure about ^^^ or >>>. We are primed to hear speech and if one starts with the suggestion that speech will be heard (from a sword spirit?) subsequent sounds will be interpreted that way. |
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I would think that the swinging pipe toy creates a higher
pressure at the distal end. Essentially the tube acts like a
single passage in a radial compressor. Air will flow radially
outwards, increasing in pressure as it does so. I gather that
the sound generation is a function of localised vortex
shedding over the corrugations, but I don't understand the
details (link). I don't see why the device couldn't contain
corrugations of various wavelengths to create compound
sounds. |
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/higher pressure at the distal end/
Suppose one held the pipe still and used a blower to blow air laterally across the distal opening of the pipe. Would that produce higher or lower pressure inside the distal pipe? |
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That is a fine article, Enoch. My favorite part: |
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/The instrument has received the names “Voice of
the Dragon” and “Lasso d’Amore.”/ |
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I am loving the Lasso d'Amore. That may become my
new pseudonym, Lasso being the Romansh
masculine equivalent of Lass, and d'Amore
representing my love, and more. |
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Glad you're enjoying the article. |
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//Would that produce higher or lower pressure inside the
distal pipe?//
Lower, but the pipe isn't stationary. The rotating motion
describes a vortex in the plane of the pipe. For radial force
balance the pressure must be higher at the periphery of the
vortex than at the centre-line. A good way to see this is to
stir a cup of tea and note that the level is described by a
parabola which is lowest in the centre. |
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