I'm new to home theater set up and everything so I don't know if this is normal or not, but for some reason the sound is considerably lower when my receiver is set to process dolby digital. When I switch to have the receiver output multi-channel stereo over all speakers the volume seems normal. I don't know if it something I've done setting everything up or just how DD surround sound is.
It is especially noticeable on movies and TV shows that are DD and less so with music. An example would be I was watching a movie on DirecTV that was DD, if I set the receiver to decode in DD, my master volume would have to be around 50 in a quiet room to be heard. The same movie with the receiver set to multi-channel stereo would be set at 18.
I'm still setting up my system and have not added a subwoofer yet, but I have tried to calibrate the sound level with the gizmo that came with my receiver as well as increasing the center and surround speaker levels to the max but nothing seems to help.
My set up is as follows:
SONY STR-DG510 Receiver
Front speakers are large Yamaha Bookshelves placed just below waist level
Center channel is Qrb Audio placed about ear level right above the fronts
Surrounds are also Orb audio mounted on the ceiling
All audio is connected over a digital coax or optical
Any help or advice welcome. Thanks.