Good question. My (audio) receiver displays a volume calibration number each time it gets a new Dolby 5.1 signal in. It briefly shows something like "dialog norm -2 db" or "dialog norm +1db". I assume this number is part of the digital dolby format. With my old HD tuner (a DTC-100) there was never much variation in these, and the volume was pretty consistent from channel to channel.
With the HR20 the volume jumps all over the place from channel to chanel and, I believe, sometimes from show to show in the same channel. And, I notice that the little dolby number is also now showing big swings - - as big as -6db to +2 db.
Does somebody who understands dolby and audio care to venture an explanation and whether this is something that might get fixed in a future software upgrade.
