I've been using my 3313ci happily for three years now, but have recently been having an odd problem. I don't actually know if it was always the case, or if I've just noticed it now that my daughter is watching TV. Here's the issue: when various shows go into a musical performance (i.e., kid's cartoons that have a song between acts), the audio level drops. I have to turn it up by 10 dB or so to maintain the same level. It seems like the mix is changing from mostly center (because it's all dialog) to surround sound for the song, and the level isn't maintained properly. When the song's over, it goes back to normal. It happened once on a non-kid's show, but now I forget which -- I think it was either SNL or Today Show when they had a band on. The TiVo is connected to the Receiver by HDMI, when is then driving 5 in-ceiling speakers (5.0 setup, no LFE speaker)
It's either the Receiver or the TiVo, not the program, because it doesn't happen when watching the same shows in another room, where that room's TiVo is connected directly to the TV by HDMI and the TV to a sound bar via optical. Since that's a two-channel setup, it could be the TiVo is doing something different, but I doubt it.
Has anyone else come across this? Is there some mode I should change to maintain level without dropping quality? It's indicating Dolby Digital throughout the change (i.e., not switching to ProLogic like on commercial breaks)