7.1 surround system

[xgalaxy]

I have yamaha rxv863 receiver its set up with 7 speakers and a sub. Linked with bluray player with HDMI. Why no sound comes from the last 2 speakers (surround backs)? Do I need to make some settings in the receiver or this 7.1 is just a hype?

YPAO calibration went well with out any issues. I played a regular DVD and havent tried the blu ray DVD yet.

Any suggestion?

 

[adk highlander]

Most codecs (Dolby Digital, DTS, Dolby TrueHD, DTS Master HD) are only 5.1 discrete so you need to overlay Dolby PLxII or THX Surround EX (if you have it) to matrix in the rear surrounds. If the DVD does not say 7.1 then you will need to overlay one another mode to get the surround backs to play.

 

[jostenmeat]

I have yamaha rxv863 receiver its set up with 7 speakers and a sub. Linked with bluray player with HDMI. Why no sound comes from the last 2 speakers (surround backs)? Do I need to make some settings in the receiver or this 7.1 is just a hype?

Assuming that the receiver "knows" that rear speakers are connected (as "on", or whatever), try the following:

Set your bluray player to decode all of the formats (rather than bitstream, which is what I am assuming you have it set to). Apply PLiiX, or any matrixing algorithm of choice in the receiver.

You get it now? You can try plIIx as it is right now, but I am afraid that Yammy cannot apply matrixing to bistreams (at least for the advanced codecs), IIRC. I have hope that it can with "pre-decoded" mch PCM, not 100% sure, but try that for now.

If you don't want to touch settings on bluray player right now, find a bluray with a track that is 5.1 PCM. Apply matrixing. You get it? If that works, then my original idea should work . . .

Good luck.

 

[adk highlander]

Most codecs (Dolby Digital, DTS, Dolby TrueHD, DTS Master HD) are only 5.1 discrete so you need to overlay Dolby PLxII or THX Surround EX (if you have it) to matrix in the rear surrounds. If the DVD does not say 7.1 then you will need to overlay one another mode to get the surround backs to play.

Assuming that the receiver "knows" that rear speakers are connected (as "on", or whatever), try the following:

Set your bluray player to decode all of the formats (rather than bitstream, which is what I am assuming you have it set to). Apply PLiiX, or any matrixing algorithm of choice in the receiver.

You get it now? You can try plIIx as it is right now, but I am afraid that Yammy cannot apply matrixing to bistreams (at least for the advanced codecs), IIRC. I have hope that it can with "pre-decoded" mch PCM, not 100% sure, but try that for now.

If you don't want to touch settings right now, find a bluray with a track that is 5.1 PCM. Apply matrixing. You get it? If that works, then my original idea should work . . .

Good luck.

Simultaneous post.

 

[xgalaxy]

confused

I am sorry, I am not a audio person. Pardon me if I bug you. I just dont understand what you are saying. My sony bd player audio settings says:

Auto> normally select this, output audio signals according to the status of the connectd HDMI device

2ch PCM> Down mixes to 2 channel Leniear PCM signals before outputting from HDMI out jack

It is set to AUTO now, should I change it to PCM?

Similar options given for Dolby digigital and DTS either to pick downmix PCM or dolby/DTS.

How ever the manual is recomending not to use PCM if its connected to decodable receiver (my 863 will decode)

pl advise.

 

[GlocksRock]

If the 863 is anything like the 663 in the way it handles Dolby PLIIx, then you will not be able to apply PLIIx to HD audio sources, you will only have 7.1 when the blu ray has a native 7.1 audio track. But for all non HD audio sources, apply PLIIx deconding to create a stereo surround back from 5.1 sources.

 

[AVRat]

Which model BD player?

 

[jostenmeat]

If the 863 is anything like the 663 in the way it handles Dolby PLIIx, then you will not be able to apply PLIIx to HD audio sources, you will only have 7.1 when the blu ray has a native 7.1 audio track. But for all non HD audio sources, apply PLIIx deconding to create a stereo surround back from 5.1 sources.

GlocksRock, so you are saying that my idea will fail, correct? I just want to clarify beyond any doubt (assuming 863 = 663 in this case, and I do).

I wonder why I thought it could matrix mch PCM for rears . . . hmmm

 

[GlocksRock]

I do not belive it will work... the only other option is to play the standard dolby or dts track on the blu ray if it's available, and apply PLIIx to that. But then you would obviously not have the lossless audio.

 

[jostenmeat]

I do not belive it will work... the only other option is to play the standard dolby or dts track on the blu ray if it's available, and apply PLIIx to that. But then you would obviously not have the lossless audio.

If you are not certain, then I still believe the OP should try matrixing the decoded PCM from any given HD codec. I have reason to believe that it may* work.

The easiest way to find out is to use a BD with 5.1 PCM, not 7.1 for this experiment, and then apply plIIx.

If the OP can't understand the last statement, I don't know what to say. Perhaps someone else can help him better understand.

 

[GlocksRock]

I think it's due to the audio being a certain bitrate, any audio above a certian bitrate will not be able to have PLIIx applied to it. If you see Straight on the display, you will not be able to apply PLIIx.

 

[xgalaxy]

status update

thank you all for answering my post. I made some improvements. When I set the receiver's audio menu extended surround mode from "auto" to "dolby prologic IIx Movies" then I can hear sound coming from all 7 speakers. Really appreciate your suggestion.

How ever I have not played any bluray yet on this player. My netflix is shipping shortly. I will do the same and see if PlIIx works on HD master audo also.

Definitely I will post.

MY dvd player is Sony BDP-S360. thanks

 

[jostenmeat]

thank you all for answering my post. I made some improvements. When I set the receiver's audio menu extended surround mode from "auto" to "dolby prologic IIx Movies" then I can hear sound coming from all 7 speakers. Really appreciate your suggestion.

How ever I have not played any bluray yet on this player. My netflix is shipping shortly. I will do the same and see if PlIIx works on HD master audo also.

Definitely I will post.

MY dvd player is Sony BDP-S360. thanks

Your S360 can decode all formats. Since you are getting DTS-MA (that's what I think you mean by "HD" master audio), well, that's not quite the test that I recommended. So, try PLIIX on the DTS-MA bitstream, if that doesn't work, then please re-read my suggestion. IOW, go into sony menu, and have all formats decoded. Please read the manual.

I hope the BD from netflix is not a DTS-MA 7.1 track, because you still won't find out what you need to know.

 

[jostenmeat]

GlocksRock, so you are saying that my idea will fail, correct? I just want to clarify beyond any doubt (assuming 863 = 663 in this case, and I do).

I wonder why I thought it could matrix mch PCM for rears . . . hmmm

I think it's due to the audio being a certain bitrate, any audio above a certian bitrate will not be able to have PLIIx applied to it. If you see Straight on the display, you will not be able to apply PLIIx.

Ok, this was bothering me, so I had to confirm my belief. I was correct that it can matrix PCM. If you update the FW, you can actually matrix everything (yes, TrueHD too) except DTS-MA bitstreamed. I ran a simple search function exercise within AVS owner's thread, and got 100+ hits. Here are some of the first, all by different posters I think, corroborating what I said before.

http://www.avsforum.com/avs-vb/showpost.php?p=18209683&postcount=10466

http://www.avsforum.com/avs-vb/showpost.php?p=17319473&postcount=10176

http://www.avsforum.com/avs-vb/showpost.php?p=16215773&postcount=9521

http://www.avsforum.com/avs-vb/showpost.php?p=16423361&postcount=9789

http://www.avsforum.com/avs-vb/showpost.php?p=16008350&postcount=9232

 

[yepimonfire]

is it just yamahas that do that? ive been able to apply PLIIx to 5.1 PCM tracks before and that has a bitrate around 7000kbps (give or take a few hundred kbps)

hopefully i did not derail the thread. apology in advance.

 

[jostenmeat]

is it just yamahas that do that? ive been able to apply PLIIx to 5.1 PCM tracks before and that has a bitrate around 7000kbps (give or take a few hundred kbps)

hopefully i did not derail the thread. apology in advance.

I think Marantz has had the same issue, historically. This brand also could not apply Audyssey techs to the advanced codec bitstreams, historically.

 

[xgalaxy]

I am lost

so my reciever needs a firm ware (FW) update? how do I do that?

 

[jostenmeat]

so my reciever needs a firm ware (FW) update? how do I do that?

Seriously, we are already on post #18, and if you JUST TRIED my first recommendation, you might have been able to save everyone a lot of breath.

Ok, so, from the little I've gathered, an update of FW might allow you to matrix TrueHD as bitstreamed. Not DTSMA. You can ALREADY matrix PCM. So, have your damned bluray player decode the formats, and you might be good to go!?

Can you please finally try my first test?

I keep referring to this recommendation/test it seems.

For, even with FW update, you're still going to have to delve into the BDP menu.

In general, if it ain't broke, don't fix it. There is always some risk with FW updates on AV equipment, if only due to user error. Since you seem to either ignore, or at least have a difficult time in understanding the very simplest of instructions, I'm not sure you should even try the FW, to be quite frank. But, if you still wanna try, here is a set of instructions. I will not read every bit of the instructions, and hold your hand through the process; you can't even follow my first set of instructions as it is! So there!

http://www.avsforum.com/avs-vb/showpost.php?p=14326605&postcount=6101

 

[xgalaxy]

update

OK, I dont want to waste any of your time. I got the bluray dvd movie Burn After reading from netflix. Its 5.1 DTS HD Master audio. When I played the receiver removed PLiix symbol and replaced with PCM symbol. And sound only came from 5.1 speakers. What I understnad:

DVD player decoded and sent PCM instead of bitstream
PLiix is not applicable any more.

The bottom line nobody in this post knowledgeble enough. I talk to Yamaha tech and they told me Bluray you just cant apply PLiiX. Bluray DVDs will produce sound in 7 speakers only if its native 7.1 channel (very few movies out there at this time)

bye and do not extend this post.

 

[GlocksRock]

The bottom line nobody in this post knowledgeble enough. I talk to Yamaha tech and they told me Bluray you just cant apply PLiiX. Bluray DVDs will produce sound in 7 speakers only if its native 7.1 channel (very few movies out there at this time)

I'm pretty sure this is what I already tried to tell you.

If the 863 is anything like the 663 in the way it handles Dolby PLIIx, then you will not be able to apply PLIIx to HD audio sources, you will only have 7.1 when the blu ray has a native 7.1 audio track. But for all non HD audio sources, apply PLIIx decoding to create a stereo surround back from 5.1 sources.

So I guess someone in this thread may be knowledgeable enough.