Uncompressed PCM in BLU RAY, how to decode it

[jgcamil]

Hi,

Well, seems age caught up with me and while I try to get a new state of the art receiver, I still can´t part ways with my ol´faithful Yamaha DSP AX1.

I recently bought a PlayStation3, mainly for playback of BluRay movies (well, gaming is also allowed isnt it?). As my Yamaha cannot decode TrueHD / DTS Master signals, I've seen that some of these discs carry a Linear UNCOMPRESSED PCM, which I´ve heard are better than the regular DolbyDigital / DTS soundtracks.

How can I properly decode this PCM signal? If I do a passthrough to my Yamaha, with no surround modes, I only get a stereo signal. On the other side, if I activate a surround mode, the decoder lights a "dolby prologic" signal....

My 2 questions are:

1) Is this PCM Uncompressed track better than the DD/DTS tracks?
2) If so, can it be decoded as a 5.x soundtrack?
3) How can I do this?
4) Is my Yamaha too old to decode this?

Thanks in advance...

José

 

[MDS]

Uncompressed PCM doesn't need to be decoded, just converted to analog.

The issue is that a multi-channel PCM track requires far more bandwidth than can be supported by a coax or optical digital connection (s/pdif). So it has to be converted to analog by the player.

If the receiver is switching to ProLogic then it is receiving a stereo signal which means the player downmixed the mulitple channels to stereo and then also did the digital to analog conversion.

I don't know if a PS3 has multi-channel analog outputs but if it does you could use those to connect to the receiver's multi-channel analog inputs. In that case the player would not downmix but simply perform the digital to analog conversion.

 

[mike c]

IIRC, my ps3 doesn't have analog outs.

 

[j_garcia]

With the PS3, you need a HDMI capable receiver.

 

[jgcamil]

Thx guys.

Guess a new reciever should be considered in my up n coming budget....