similar. there's bound to be someone in the trade who's used devices like you want.
Peter Scott
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19 years ago
Parabolic shape for reflector
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19 years ago
I think he was wondering about how to listen to tweeting noises at the end of his garden, not the lower crested twit on the surface of Mars ;)
Andrew
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19 years ago
In this day and age you'd think they'd put a little something into the ball so that it was self-tracking.
Alternatively, pass a bung to all the other players to ensure they give the ball to Michael Owen. That way it won't be going anywhere ;)
Andrew
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19 years ago
It might be a silly suggestion, but can't the traffic noise be filtered out dynamically?
Not my specialist area by any means, but it seems to me that the TV crews doing roadside interviews do this pretty well without having an awful lot of equipment with them.
Andrew
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19 years ago
There are, but I think the OP has checked up on those prices. ;-)
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19 years ago
Wasn't this day and age, though. ;-)
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19 years ago
The one I used for ball being kicked FX at Wembley was IIRC about 2 metres in diameter.
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19 years ago
To a certain extent, yes.
The obvious way is to get the mic as close to the wanted sound as possible, and to use a directional mic.
But you might find problems getting a bird to tweet with a ruddy great mic shoved up its beak.
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19 years ago
Yes. I'm not sure they're exactly of the best quality, as the ones I've seen tend to have been used with any old mic that was lying around.
Yet another problem to add to digital this and that. But I suppose at least that parab would have been fixed since the balls are hit only on one axis?
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19 years ago
I'd have a go at making one. Cut a couple of templates from hardboard or similar, mount on a piece of board and use to shape a lump of expanded polystyrene (ideally with a hot wire, but a handsaw would probably do). Smooth the former with a thin layer of filler, cover in aluminium foil, then laminate with fibreglass, papier-mache ...
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19 years ago
In article , Dave Liquorice writes
He's only after birds song and I don't suppose they do Baritone and Bass;))
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19 years ago
In article , Malcolm Stewart writes
Sounds like their opening another classic FM network some where;)
Did you do the original one?....
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19 years ago
That's true enough. Unless it is the greater spotted politician bird then you can be sure it'll squawk all day long ;)
Andrew
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19 years ago
That's a good bet, though bear in mind John's comments Re offset feeds.
I have an old perforated 80cm dish that could be easily improved by sticking aluminium foil over the front surface and acoustic wadding (Or old blankets) over the back. The LNB bracket could easily be adapted to hold a microphone.
Available FOC in Leeds if you can collect.
DG
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19 years ago
Similar idea was suggested in an issue of Everyday Electronics, many years ago...or was that the infrared torch link? Was a long time ago :)
Lee
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19 years ago
Do not know how efficient they are but are there not some available in the toy market? .not sure where I have seen them for sale. maybe it was Maplin or possibly Toys R Us in the section which has Telescopes,metal detectors etc.
G.Harman
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19 years ago
Sometimes in Lidl as toy spy mics, but they;re only 6" diam so won't be at all effective.
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19 years ago
In the 1960's Granpian used to sell a parab spun from aluminium. It was about 2 feet in diameter and was very widely used before rifle mics became commonplace.
In fact a parab is a particularly good solution under certain circumstances.
A rifle mic works by cancelling out the off-axis sound, while a parab works by magnifying the wanted sound. However it isn't directional at all frequencies, but if you're wanting to record s quietish high frequency sound, such as bird song, the parab has much to recommend it.
I can remember some articles about the theory, construction and usage of parabs published in 'Wireless World' around 1970, a reference library might have copies on file.
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19 years ago
Yes. But I'd not want to use one for quality recording.
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19 years ago
That is not a bad idea at all. I have seen really big woks for sale at Wing Yips Chinese super markets. I estimate the largest available in store are about a metre in diameter. They are pretty deep though probably not a true parabola I am sure they would concentrate the sound and cut out unwanted noise quite well.
Unfortunately the largest ones they sell on line are only 14" dia. So give them a call to find out the sizes and prices. I was not looking for a big wok when I saw them so I did not note the prices but they were remarkably cheap. IFIRC about £35 for the really big ones.
At the worst you could use one at a large scale barbeque ! They are definitely bigger than the domed BBQ cooking kettles that I have seen and are a lot less expensive.
Happy recording and/or stir-fries :-)
Richard.