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Another Platter Speed queston

So I got the Dr. Feickert platter speed iPhone app and tested my Well Tempered Classic TT with the Analogue Production's Test LP.
When I ran the track with the 3150Hz tone, the app was reading a mean frequency of 3171Hz with my speed at higher than 33 1/3 by about .05% if I remember correctly. So I have three questions:
1) If the tone isn't exactly 3150Hz won't that effect the accuracy of my TT speed?
2) How would one adjust the speed on a Well Tempered TT?
3) Could the test LP's tone be wrong or is the app reading it wrong?
thanks
ebuzz

Showing 1 response by brf

brf
1,715 posts
 
The Platterspeed app is based on the premise that in order to reproduce the 3150hz tone, the table must turn exactly at 33 1/3 rpm. If the table runs slow, the test tone produced will be lower than 3150hz.

Since your table reproduced a test tone greater than 3150hz, it is assumed that your table runs faster than 33 1/3rpm.

If you are concerned about the accuracy of the test tone, you could always use another 3150hz test tone from another test album/manufacture and compare the results.
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