But the original PS3 can still internally decode and send the signal out as LPCM over your HDMI connection. You'll get the full HD audio but your receiver will say something like "Multichannel Audio" or "PCM" instead of "Dolby TrueHD" or "DTS -HD MA" Look here for details on setup and configuration:
How many channels you have hooked up to your receiver really doesn't effect your ability to listen to HD audio. Most HD audio is still 5.1 (there just aren't; that many 7.1 setups to justify much above that). Only about 10% of Blu-rays contain 7.1 channel versions of Dolby TrueHD or DTS-HD MA. 5.1 systems just down-mix this information.
In order to get 6.1 or 7.1 audio from most Blu-ray audio tracks you'll need to enable some form of matrixed sound decoding on top of the HD audio (Pro Logic IIx, Pro Logic IIz, or DTS-ES or DTS Neo:6). Keep in mind that the channel information you'll hear above and beyond 5.1 is being constructed by a processing chip, not a human being. The results can be good but can also turn into a jumbled mess.
I have a pioneer kuro elite monitor, ps3 , av receiver yamaha 663 and 6.1 channel onkyo sks ht240 speakers. Yes the av receiver can decode dts hd and dolby true hd cause its right in the manual, on the receiver it self and I called yamaha and checked the website. If you check cnet they also say tha this receiver does play dts hd and dolby true hd.
I had the new star trek movie and it plays dolby true hd but when it plays I don't see the the dolby true hd symbol being displayed. It only displays dolby digital. In my ps3 sound settings it. I let the ps3 detect all the sound. So what's going on? As I did my research it seems lik in order to receive true hd I. Lossless sound I have to get 7.1 channel speakers. It also seems like certain channel systems 5.1,6.1 or 7.1 can only play certain decoding or am I wrong. Am I good with my 6.1 speakers or do I need to get 7.1 speakers. I'm looking for the best sound. I've tried playing wiith my ps3 setting and its no good.