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blu-ray "lossless" compatability

post #1 of 3
2/16/08 at 9:48am
Thread Starter 
Sorry if this question has been covered, but I searched and couldn't find any threads on it.

I have a PS3 which I am playing blu-ray discs on. I have a Sunfire Theater Grand processor II. I also have a HD-DVD player.

When I play HD-DVDs or even standard definition discs through my system both the Multi-channel digital and the Dolby Digital readout lamps light up on the Sunfire. Also, the DSP mode is locked and it will only play in Dolby Digital.

When I play Blu-Ray discs that have "lossless" or PCM 5.1 (uncompressed) audio on them, only the Multi-channel digital lamp on the Sunfire lights up. In addition I have to manually switch the DSP mode to Pro-Logic as it will play in Stereo, 3-channel, stadium, cathedral etc. etc. if I don't manually switch it.

Has anyone else encountered this? Also, if I am switching manually to Pro-Logic, am I experiencing true Dolby Digital or comparable sound?

Thanks for your help,

Jack
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post #2 of 3
2/16/08 at 12:03pm

Re: blu-ray "lossless" compatability

If I remember the specs for the Sunfire correctly, it does not have HDMI inputs, only standard optical and coax digital inputs. If so, it is limited to 2-channel PCM sound and standard DD and DTS. It cannot receive PCM 5.1 lossless audio (unless there's a set of analog 5.1 inputs I'm forgetting).

Your players are probably converting their soundtracks to something that can be sent through an SP/DIF connection. Exactly what depends on the player and the settings.

I'm moving this to the hi-def area for further comment.

M.
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post #3 of 3
2/16/08 at 12:21pm
Thread Starter 

Re: blu-ray "lossless" compatability

That is correct, it does not have HDMI inputs, so I am running an optical input to the Sunfire.


Quote:
Originally Posted by Michael Reuben
If I remember the specs for the Sunfire correctly, it does not have HDMI inputs, only standard optical and coax digital inputs. If so, it is limited to 2-channel PCM sound and standard DD and DTS. It cannot receive PCM 5.1 lossless audio (unless there's a set of analog 5.1 inputs I'm forgetting).

Your players are probably converting their soundtracks to something that can be sent through an SP/DIF connection. Exactly what depends on the player and the settings.

I'm moving this to the hi-def area for further comment.

M.
Reply
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