On Sat, 22 Mar 2014 06:27:28 -0700, "William Sommerwerck"
wrote:

"dave" wrote in message
om...

B has a reference level. Does C? Or is C more like dbx?

All Dolby NR systems are level-sensitive. dbx is not.

All of the Dolby systems are level sensitive. They are band selective
compressors after all. The dbx system is just a compressor system but not
band selective. Lately they have been leaving off the decompressors and
chaining the compressors.

?-(