problem w/DTS-HD master on receiver UPDATE: fixed - Blu-ray Forum

kurt vidal · 12-16-2006, 03:52 PM

Hello,
I'm new to this forum and am looking for some help regarding subject.
I'm running a PS3 using an optical digital audio output to an older Pioneer Elite VSX-24TX reciever for my surround system.
I've got my PS3 audio output set to bitstream (not pcm).
My reciever is capable of showing me graphically if I am: A) getting a digital signal, B) whether its AC3 or DTS, C) which of the surround channels are being output, & D) if the output is in dolby digital (5.1) or dolby pro-logic (2 channel).
When I play a movie (ie: kingdom of heaven or league of extraordinary gentlemen) that uses the DTS-HD lossless audio format my reciever is showing its getting a digital signal, however, its only putting out in pro-logic mode (2 channel).
When I play a movie (ie: superman returns, evolution) that uses either "DD AC3 5.1" or "LPCM 5.1" my reciever shows I'm getting digital signal, AC3, all channels are being output, and I'm getting dolby-digital 5.1 (5 channels). This is the way a normal DVD would output on my system (non-blu-ray).
Can anyone explain to me why I would not be getting 5.1 channels while playing a blu-ray with the DTS-HD lossless audio format?
Any recommendations or possible workarounds that anyone could provide would really be appreciated.
Thanks,
Kurt

theknub · 12-16-2006, 05:43 PM

what connection are you using?

kurt vidal · 12-16-2006, 08:07 PM

Im using optical digital out from the ps3 and into my reciever. My reciever doesnt have HDMI inputs.

theknub · 12-16-2006, 08:18 PM

while not an expert, here is my go of it...

the player is decoding the codec internally and then outputting the sound as pcm. however, optical/coax can not accept a pcm 5.1 signal. it can only accept a 2 channel signal. you can only take a pcm 5.1 signal over hdmi. so, you need a new receiver or need to play a lossy codec.

kurt vidal · 12-16-2006, 09:34 PM

are you saying that although I have my blu-ray player set to output audio to "bitstream" thru optical cable that the player is somehow outputting to "PCM" instead of the bitstream I have it set at?

kurt vidal · 12-16-2006, 09:36 PM

That doesnt make sense to me. Why do the DD AC3 & LCPM formats send the signal out in 5.1 then?

kurt vidal · 12-17-2006, 12:32 PM

Never mind folks. I got this figured out. For some reason I hadnt selected "DTS" in the audio settings of my PS3. Now all works as it should. thanks for those who took the time to respond.

12-16-2006, 03:52 PM	#1
kurt vidal Member Member since:Dec 2006 Location:South Lyon, MI	problem w/DTS-HD master on receiver UPDATE: fixed Hello, I'm new to this forum and am looking for some help regarding subject. I'm running a PS3 using an optical digital audio output to an older Pioneer Elite VSX-24TX reciever for my surround system. I've got my PS3 audio output set to bitstream (not pcm). My reciever is capable of showing me graphically if I am: A) getting a digital signal, B) whether its AC3 or DTS, C) which of the surround channels are being output, & D) if the output is in dolby digital (5.1) or dolby pro-logic (2 channel). When I play a movie (ie: kingdom of heaven or league of extraordinary gentlemen) that uses the DTS-HD lossless audio format my reciever is showing its getting a digital signal, however, its only putting out in pro-logic mode (2 channel). When I play a movie (ie: superman returns, evolution) that uses either "DD AC3 5.1" or "LPCM 5.1" my reciever shows I'm getting digital signal, AC3, all channels are being output, and I'm getting dolby-digital 5.1 (5 channels). This is the way a normal DVD would output on my system (non-blu-ray). Can anyone explain to me why I would not be getting 5.1 channels while playing a blu-ray with the DTS-HD lossless audio format? Any recommendations or possible workarounds that anyone could provide would really be appreciated. Thanks, Kurt

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12-16-2006, 05:43 PM	#2
theknub Blu-ray Guru Member since:May 2006	what connection are you using?

12-16-2006, 08:07 PM	#3
kurt vidal Member Member since:Dec 2006 Location:South Lyon, MI	Im using optical digital out from the ps3 and into my reciever. My reciever doesnt have HDMI inputs.

12-16-2006, 08:18 PM	#4
theknub Blu-ray Guru Member since:May 2006	while not an expert, here is my go of it... the player is decoding the codec internally and then outputting the sound as pcm. however, optical/coax can not accept a pcm 5.1 signal. it can only accept a 2 channel signal. you can only take a pcm 5.1 signal over hdmi. so, you need a new receiver or need to play a lossy codec.

12-16-2006, 09:34 PM	#5
kurt vidal Member Member since:Dec 2006 Location:South Lyon, MI	are you saying that although I have my blu-ray player set to output audio to "bitstream" thru optical cable that the player is somehow outputting to "PCM" instead of the bitstream I have it set at?

12-16-2006, 09:36 PM	#6
kurt vidal Member Member since:Dec 2006 Location:South Lyon, MI	That doesnt make sense to me. Why do the DD AC3 & LCPM formats send the signal out in 5.1 then?

12-17-2006, 12:32 PM	#7
kurt vidal Member Member since:Dec 2006 Location:South Lyon, MI	Never mind folks. I got this figured out. For some reason I hadnt selected "DTS" in the audio settings of my PS3. Now all works as it should. thanks for those who took the time to respond.

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