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Its size and shape is like a vinyl record, but has three adjustable feet so it stands ever so slightly above your rotating turntable. This record doesnt spin, but it plays through the needle like a record would. And heres how:
Theres a special cup on the Needle Wiggler into which the
phonograph needle rests. This tiny cup vibrates by the movement of electromagnets, similar to the way a recording lathe cuts a groove in a record. The Needle Wiggler disk has circuitry to simulate a record groove's motion and an input jack. Plug your ordinary portable CD player, computer, or mp3 player into this device, and start your phonograph. The platter turns, the tonearm moves and the needle settles into the cup which wiggles the phono cartridges needle in response to the music. Listen to CDs on your familiar old vacuum tube amp record player.
The reason its designed much like a real record is so that most turntables will play it without modifications. The hb member [Freefall] suggested playing a CD directly, and this may be possible with a special laser reader head (and other changes, a bunch come to mind). But this idea is to allow you to hear digital sounds played by your own phonograph needle.
I would dearly like to spin it, like a real record, and have versions with various levels of authentic "pop" and "hiss" available. But it's not possible to wiggle the whole thing properly ...or it is it?...
vector-mapped waveforms. Store "analog" on a digital computer.
The idea that brought up "The Needle Wiggler", which I'd been kicking around for a while. [Amos Kito, Oct 04 2004, last modified Oct 05 2004]
||Won't the cup be carried around in a circle by the turntable's
table-turniness? Seems it would have to be mounted on its
own arm from the center, or in a circular track. Or do the
feet extend past the platter to stand on the record player's
body and hold the disc slightly above the platter? (Actually,
after writing that out as a question, it's apparent that that
last option is exactly what you said in your first sentence,
but it wasn't clear to me what that sentence meant until I
had the question of whether it meant what it turns out to
mean in mind.)
||It would be ever so slightly interesting to see what happens to
sounds if they are repeatedly put through D-to-A and A-to-D. I
suppose after enough iterations you'd lose the original input
and just get the sound of pure analogness (or digitalness).