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Geez, you're doing it again

172.58.242.138

In Reply to: RE: It's not that complicated posted by tomservo on September 13, 2023 at 13:31:58

Again, you're making it way too complicated. Look, all you have to do is make sure the disc is absolutely level while spinning. It's actually the same idea as putting lead weights around the rim of a car wheel to make it rotate more smoothly, I.e., dynamic stability, since most CDs are out of round, which makes then dynamically unstable, especially when not level. Of course, in a perfect work you want to use the disc trimmer to put the CD in round AND my black 3M tape method for stabilizing the disc against small perturbations. But since we don't have the (very expensive) disc trimmer we do the best we can, with Green Pens, Purple Pens, whatever we can, no? Otherwise one lives with the sound you've got.
I have pointed out many flaws in the CD playback system. Have you been napping? You also asked me if I'm open to experimentation? You still haven't figured out where I'm coming from. You act like this is your first rodeo sometimes.
NOTE No one has yet offered the solution how to ensure the disc is absolutely level during play. If it was easy everyone could do it.
Geoff Kait
Machina Dynamica
Not too chicken to change

Edits: 09/14/23 09/14/23 09/14/23 09/14/23 09/14/23

Follow Ups:

how to ensure the disc is absolutely level during play - hawkmoon 09:34:10 10/06/23 (7)
Inquiring minds want to know
- RE: how to ensure the disc is absolutely level during play - geoffkait 03:16:31 10/07/23 (4)
  Since the top of the player/transport is not uniformly level and the tray may not be level with the top of the chassis, you must find a reliable way to ensure the disc is level during play. One way is to place a bubble level on top of the CD that's sitting in the tray with the tray ejected. Then hope the CD is the same level when it's inserted into the player. The balance/stabilizing of the CD is another issue, I recommend the 3M Super 88 tape to stabilize the CD. If it's a top loader just place the bubble level on the CD sitting in the tray.
  
  Edits: 10/07/23
  - Thanks! Nt - hawkmoon 08:10:34 10/07/23 (3)
    Nt
    - One more thing...- - geoffkait 05:56:57 10/08/23 (2)
      When placing bubble level on top of the CD sitting on the tray make sure the weight of the bubble level doesn't force the disc over to one side a little bit. Maybe measure the level of the tray only.
      - RE: One more thing...- - Tre' 15:33:35 11/10/23 (1)
        
        In Reply to: RE: One more thing...- posted by geoffkait on October 08, 2023 at 06:56:57
        
        I don't think it can ever be perfectly level while playing.
        
        I think the transport is suspended. I think a spinning motor applies torque that will tilt the suspended transport one way or the other. The torque will increase and decrease depending on the RPM of the motor and that is always changing. So the tilt will always be changing.
        
        Tre'
        Have Fun and Enjoy the Music
        "Still Working the Problem"
        
        RE: One more thing...- - Dryginger2 15:07:32 11/11/23 (0)
        
        In Reply to: RE: One more thing...- posted by Tre' on November 10, 2023 at 15:33:35
        
        In my tests damping the micro-vibration of the CD laser-reader with a couple of Marigo Audio's 3mm green dots did more to improve CD ripping sound quality than all attempts at fine-tuning CD player unit/ tray balance.
- his example is how you balance a tire, and not ensuring an absolute level condition - Story 10:08:06 10/06/23 (1)
  one is vertical, the other horizontal.
  
  Let us see if he edits one more time
  - You are confused. - geoffkait 03:18:42 10/07/23 (0)
    Balance and level are two different things.

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