[ScottW]

"Arny Krueger" wrote in message
...
"ScottW" wrote in message

"Arny Krueger" wrote in message
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"ScottW" wrote in message
ups.com
Arny Krueger wrote:
"Sander deWaal" wrote in message

"Arny Krueger" said:

But who, except for a few audio fanatics, would be
interested, and worse, who'd have access to the
equipment to measure such effects?

Anybody who has the resources to digitze vinyl with a
computer, and a good test record, and some LPs that are
thought to be illustrative of the effect, has the
required equipment. Suitable software is available for
no charge.

And what method could be used to
try to separate the "bad" vibrations from the wanted
stylus movement?

The method of differences.

One hypothesis in that the record clamp will reduce
vibrations. Take data with and without the clamp.

Another hypothesis is that some record mat materials
(say sorbothane) reduce vibrations. Take data with and
without the clamp.

As I mentioned...a clamp might influence things like
bearing noise causing subtle differences that are record
vibrations.

I should have 'differences that are not' record vibrations.


Take data with and without the clamp.

And you may have differences caused by other factors than the ones
we're trying to prove. How do you sort that out?


The article you referenced indicated this problem is more
one of vinyl compliance which might be better addressed by using a better
material than vinyl rather than trying to damp the problem.

Agreed, although that related to a different mode of vibration.

Acrylic polymer maybe.

I think they tried acrylic LPs and they didn't sound very good.

I'll guess that vinyl compliance greatly aids cart tracking to a point.
Raise the bar of vinyl and the bar for cart tracking may likewise
require a height increase.

ScottW