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Vinyl Asylum Welcome Licorice Pizza (LP) lovers! Setup guides and Vinyl FAQ. |
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Vinyl Asylum Welcome Licorice Pizza (LP) lovers! Setup guides and Vinyl FAQ. |
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In Reply to: RE: Simple. Shut down the player to erase memory first posted by jeromelang on May 28, 2015 at 04:44:50:
""Climatizing" (for lack of a better word) the player to individual discs (just discovered recently)"
I'm not sure what you mean here... The ELP is very sensitive to small changes in temperature - the wavelength of the laser shifts with temperature and therefore requires temperature compensation otherwise the detector will get a reduced signal at the reference wavelength and result in a reduced SNR. The calibration disc needs to be used if the ambient temperature in the room shifts by more than a couple of degrees. However, if you are noticing that the sound is shifting after playing a disc for a period of time, that may indicate a "significant" change in internal case temperature for operating parameters to shift in an audible way. Remember that if you turn off the ELP, you reset the calibration parameters (to the factory defaults) that are set after using the calibration disc.
"Erasing servo memory before playback, and subsequently after individual tracks."
I think you may be getting confused about what a "servo" is. Servo is short for Servomechanism and is a term (used in control systems) to describe a feedback system in which an input signal (such as motor voltage) is adjusted so that a measured output signal (such as platter rotation speed) is maintained at a desired output level (ie. the required platter rotation speed).
It is a dynamic system and doesn't have a memory in the sense you mean. You may have a response lag time, but the term is applied to the optical block positioning system (for example) and is NOT related to the output sound (which is made possible by the servo positioning system and motor control).
In a digital system (which is where you first mentioned it), the phenomenon you report does not exist. It is a continuous streaming process (apart from a delayed sample on one channel to synchronise L and R data from the serial stream). Even for those that do utilise a buffer for jitter reduction, the memory management is carefully designed so that the buffer fills and empties in a consistent way. If this weren't the case, the system would simply fall over and you would hear complete garbage or glitching while waiting for the buffer to fill. In short, for a digital system, you don't get "sound overlay" which is what you appear to imply by thinking of memory in analogue terms due to "incomplete erasure".
The routine you follow may work in your situation, but I suspect not for the reasons you attribute them to!
Regards Anthony
"Beauty is Truth, Truth Beauty.." Keats
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Follow Ups
- RE: Simple. Shut down the player to erase memory first - flood2 01:15:10 05/29/15 (4)
- Use your ears and listen, Anthony - jeromelang 02:15:07 05/29/15 (3)
- RE: Use your ears and listen, Anthony - flood2 03:16:48 05/29/15 (2)
- I've always wondered if... - genungo 08:37:12 05/29/15 (1)
- No if - jeromelang 22:58:34 05/29/15 (0)
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