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Old 3rd May 2019, 6:41 pm   #4
paulsherwin's Avatar
Join Date: Jun 2003
Location: Oxford, UK
Posts: 18,930
Default Re: Different Dolby B / C Calibration Standards

Dolby tracking errors caused all sorts of problems when playing a tape recorded on one machine on something else. There were even tracking errors on the same machine because different tape formulations had different sensitivities. BASF chrome tapes produced tracking errors when used to record on any deck set up for the higher sensitivity TDK/Maxell pseudochromes, even if the record bias was adjusted appropriately.

Dolby errors are the main reason that commercial prerecorded cassettes tend to sound murky if played with Dolby B enabled. BASF were very successful in persuading record companies to use their chrome formulations.
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