My receiver has a late night setting, but I've never touched it. I thought it had something to do with lights, lol. I'm pretty sure it's always off, but I'll have to check that out. Now, is therE another setting on the onkyos that this applies to besides the late night thing?
Also, since I have a ps3, and a receiver that decodes TrueHD, which one do I use for the decoding? I think I've always used bitstream, and the receiver automatically switches to "multichannel" on the display. I thought PCM was a downmix into stereo, so I've always stayed away from it.
Any info there?
My Onkyo has Late Night Cinema Filter, Dynamic EQ, and Dynamic Volume in the audio menu. Dynamic Volume is a compression mode. Cinema Filter will soften the brightness of soundtrack, which is essentially a type of compression or sound attenuating method.
These can be activated automatically by certain DolbyTrueHD Blu-ray soundtracks.
I don't have a PS3, so I can't fully answer your question. If it helps, this is how it works on my system. If I select Bitstream Audiophile out over HDMI in the Samsung BD player settings, it just passes the encoded signal to the Onkyo for it to handle the decoding. This is all in regards to High Definition audio. The Onkyo would display either DTS MA or DoblyTrueHD on the panel.
If I wanted to reverse the scenario, I could because my Samsung BD player also has on board HD audio decoding. In that scenario, I would set the player to PCM out over HDMI and it would send the already decoded signal to the Onkyo for it to simply be amplified. The Onkyo would not be doing any decoding. The Onkyo would display PCM Multichannel Surround on the panel.
The PCM out will only downmix to 2 channel if it is connecting over an optical or digital co-ax cable. Those two cable standards will not pass HD audio. PCM downsampling is also something that makes it compatible with receivers that are 96KHz compatible, as most older units are 48KHz compatible. However, when you use a player that has internal HD audio decoding (DTS MA & DolbyTrueHD) you will have a choice in the audio menu on which unit you want to perform the decoding. PCM out if you want to use the Blu-ray player decoder or Bitstream out if you want the receiver to perform the decoding, both over HDMI.
None of this applies to people connecting their systems via optical or digital co-ax. As neither of those cable mediums will pass HD audio.