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Cassette Tapes..Dolby B or C?

I still have a tape deck in my system, and have a few tapes that are nice for quiet background music. The tape deck has a switch to select Dolby B or Dolby C (or none). There seems to be no marking on prerecorded tapes to indicate the type of Dolby processing. On a tape I was just playing B sounds about right. Should I assume that all prerecorded tapes are B unless otherwise stated?
eldartford

Showing 1 response by johnmcelfresh

johnmcelfresh
97 posts
 
If the tape is pre-recorded and marked Dolby, it is Dolby B. Dolby C was available to consumers while recording their own tapes, but was not used on commercial tapes. As it has a more agressive EQ curve for encoding and decoding, it will make the prerecorde3d (Dolby B) tapes sound duller if used on playback.

Dolby HX Pro is a playback only processing and is not, to my recollection, usually selectable.
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