Hi-Rez Highway

Still don't get it

68.183.146.17

Botanico92007

A

In Reply to: RE: Try making a mirror-image drawing and not using the mirror. (NT) posted by Kal Rubinson on November 28, 2013 at 08:22:21

In mirror image writing like da Vinci did, the image only changes from left to right, it doesn't change from top to bottom.

Try holding a normal record up to a mirror. The music still starts at the outer edge, doesn't it? A turntable turning in the opposite direction would play it normally.

I don't see that drawing a mirror image is any different from seeing it in the mirror. Maybe I've had too much turkey. Oops, I'm in California, and Thanksgiving dinner is still many hours away :-).

Follow Ups:

RE: Still don't get it - ahendler 22:05:39 11/28/13 (0)
AI don't understand all the confusion. A standard record starts from the outside ans spirals inward. This other type starts at the inside and spirals outward. What's not to get?
RE: Still don't get it - Kal Rubinson 19:06:32 11/28/13 (3)
The reason that I suggested making a mirror image drawing rather than looking at it in the mirror is that the former will let you turn it as if it was on your turntable and you can (should) see that putting the stylus at the label will cause it to track from inside out.
- One last try - Botanico92007 21:18:27 11/28/13 (2)
  But the music will play backwards. It will be like a 2-track stereo tape wound tails out and played without rewinding first.
  
  Write down the alphabet on a paper thus: abc....xyz and put an arrow in the direction the information reads.
  
  Draw a spiral on the same paper (1� spiral is enough) with an arrow to show the direction the information reads.
  
  Look at it in the mirror. You will see that the information will only read correctly on the spiral if the rotation is reversed. The mirror image doesn't make the music start on the inside, so for me it's an imperfect comparison.
  
  But I give up.
  
  .
  - Ah, - Kal Rubinson 08:30:26 11/29/13 (0)
    The mirror bit was just to show you how the stylus would track the groove from inside to outside with the turntable running in the standard direction.
    
    It was always presumed that the recording would be cut in the same direction that it is played, otherwise the music would be backward.
  - RE: One last try - ahendler 22:09:23 11/28/13 (0)
    This whole mirror image thing has complicated the matter .The direction of the cutting remains the same. In one case the grooves move from outside to inside and the other case the grooves move from inside to outside. Simple
    Alan

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