Roderic, The EQ is fixed. There are the four compressors, but we do really nice compression/expansion in DAWs these days <smile>. In fact, in theory, one could mock up a Dolby decoder using the built-in filters and compressors. Note, I said "one" not "I". Cheers, Richard On 2012-01-11 1:56 PM, Roderic G Stephens wrote: > I misspoke when I said, "doesn't a Dolby decoder adjust to the incoming data and change its compression and EQ accordingly?" I should have said "expansion". Also, the descriptions of Dolby refer to "dynamic processing". Isn't that all about a real time situation through a decoder. I'm asking as one who wants to understand more about the subject. -- Richard L. Hess email: [log in to unmask] Aurora, Ontario, Canada (905) 713 6733 1-877-TAPE-FIX http://www.richardhess.com/tape/contact.htm Quality tape transfers -- even from hard-to-play tapes.