Capstan drive scanner induced tempo variation is discussed in the
attached file, TempoCalculation.docx

This is more technical than the typical article for MMD, but I think
the calculations will clear the subject up for those who are so
inclined.

Also attached is a spreadsheet calculator for determining the tempo
for each tune in a roll for a roll scanned with a capstan drive
scanner.

Jack Breen
Southborough, Massachusetts 

 [ http://www.mmdigest.com/Attachments/20/03/11/200311_154329_TempoCalculation.docx 
 [ http://www.mmdigest.com/Attachments/20/03/11/200311_162250_TempoCalculator.xlsx