I have a PS3 connected to a Bose Lifestyle 28 Series III receiver through an optical cable (the Bose doesn't have HDMI).
I have two setup options:
1. Go with Linear PCM on the PS3, and the Bose will display PCM 2.0
2. Go with Bitstream on the PS3, and the Bose will display Dolby Digital 5.1
I understand that optical cable can only carry 2 channels of uncompressed audio, hence the PCM 2.0, but I have a few questions :
- In PCM 2.0 mode, I still hear sounds from the surround speakers, that are clearly different from the front speakers, and seem to be effects. How come if I am only playing 2 channels? Does the receiver decode 2 channels into 6? How does the process work : does the receiver have an algorithm to separate sounds from 2 channel or is the information of what goes into which channel somewhat encoded in the 2 channel audio?
- Which of the two setup would you think is better and are you more likely to choose when watching a movie (type action movie) ?
- Also, will there be a difference of quality between the two configs : optical between ps3 and receiver VS hdmi between ps2 and TV and optical between TV and receiver.
Thanks for your help