DOLBY DE-CODING
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Please state which version of macOS you are using,
and the exact three-section version number of Audacity from "Audacity menu > About Audacity".
Audacity 1.2.x and 1.3.x are obsolete and no longer supported. If you still have those versions, please upgrade at https://www.audacityteam.org/download/.
The old forums for those versions are now closed, but you can still read the archives of the 1.2.x and 1.3.x forums.
DOLBY DE-CODING
I have Audacity 2.0.3 running on a Macbook Pro under OS X 10.6.8. I also have a large quantity of commercial music cassettes with Dolby Noise Reduction, and a very inexpensive USB cassette digitiser that does not de-code the Dolby. Is there any way I can compensate for the Dolby Noise Reduction in software within Audacity (or otherwise)? Would be very grateful to know
Re: DOLBY DE-CODING
"Dolby" encoding/decoding is restricted by patent/copyright, so any official Dolby encoder/decoder would need to be licensed from Dolby (and would probably not be free).
Just reducing the very high frequencies a little using the Equalization effect will usually be sufficient.
Just reducing the very high frequencies a little using the Equalization effect will usually be sufficient.
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