Do you mean the Sony STR-DG1000 Receiver? If so, use the multichannel inputs and set Windows and TMT/PDVD to 7.1 speakers.

 

It's not the software, it's the hardware. Well, a combination thereof.


I think.


Fact: SP/DIF cannot transmit anything better than 2 channels of LPCM (uncompressed) audio, because it's not specified or capable of doing so. It also can't send TrueHD. It can only send Dolby Digital or DTS for 5.1 audio, which apparently your BluRay doesn't have (this surprises me but I don't personally own it...).


So there's no way you're ever going to get (a) TrueHD, (b) TrueHD decoded by your software to multi-channel LPCM over an SP/DIF cable.


HDMI audio is the answer here, which is what your PS3 is doing perfectly well. It'll either be sending the TrueHD bitstream or decoding TrueHD to 8 channels of LPCM and sending it over the HDMI cable, which are both supported by HDMI (1.3+ or 1.1+ respectively for the two options).


Now comes the question of your GX2, and why it can't do this. The essential point to take away here is that the big GPU manufacturers are idiots, and until recently have been claiming HDMI audio support when it's actually just an SP/DIF pass-through. Newer cards like the AMD/ATI 4800 series have proper HDMI audio support, but your GX2 does not. So it's essentially like having an SP/DIF port in a different physical shape, the problems above are still exactly the same.


So if your BluRay really doesn't have a Dolby Digital or DTS track you have few options. Some software might be able to mix the TrueHD track to DD or DTS for sending over optical. Not sure on this, I'm afraid. The other option is to buy a new graphics card. The final option is to watch it on your PS3 and be happy.

 



Quote:
Originally Posted by vladd /forum/post/14801043


Do you mean the Sony STR-DG1000 Receiver? If so, use the multichannel inputs and set Windows and TMT/PDVD to 7.1 speakers.

I assume you are suggesting using analogue connections. Yes, this is another option to sidestep the above issues.

 



Quote:
Originally Posted by ianjm /forum/post/14801054


I assume you are suggesting using analogue connections. Yes, this is another option to sidestep the above issues.

Yes, that's what I'm suggesting. The 9800 GX2 only supports S/PDIF audio through its HDMI port so he won't get TrueHD or Multichannel LPCM for the reasons you stated.

 

thanks, ok then what does it mean when the latest TMT version claims to support trueHD? Can you only get this with an AMD graphics card?

 



Quote:
Originally Posted by Black Banshee /forum/post/14801345


thanks, ok then what does it mean when the latest TMT version claims to support trueHD? Can you only get this with an AMD graphics card?

Yeah, you need to have the supporting hardware, which means variously an AMD/ATI 4800 series card, an Intel G45-based motherboard or (I think) an nVidia GeForce 8200-based motherboard, or several fancy unreleased sound cards that have an HDMI pass-through and will add full on multi-channel HDMi audio to your video signal.

 



Quote:
Originally Posted by Black Banshee /forum/post/14800839


OK, so after fiddling with Iron Man for hours I need some help. The only English soundtrack I can play is 2 channel. Looking to get 5.1 sound


My setup:

Gigabyte GA-P35-DS3L (currently using the SPDIF digital coax output of this board to my receiver)

Nvidia 9800 GX2 with HDMI video out to my projector

Arcsoft TMT, playing ISO files from my Unraid server via MyMovies in Vista

Sony SDR-DG1000 Receiver


All my other Blu-Ray and HD-DVD ISO's play 5.1 sound just fine. I found in the menu of the Iron Man disk for Audio settings only three choices: English Dolby TrueHD, French Dolby 5.1, Spanish Dolby 5.1. My Sony receiver cannot decode True HD (I hope to upgrade soon, but it doesn't help me now). If I select the French Dolby 5.1, as you'd expect the 5.1 works fine. But if I select the True HD English, it goes right back to 2 channel.


Other things I've tried:


1. If I put the original disk in my PS3, everything works great, my receiver outputs 5.1 Dolby, so this tends to suggest for me it may be the software (TMT) that can't support the TrueHD? If not, shouldn't TMT at least convert the soundtrack so that can be interpreted as a more standard 5.1 Dolby track for receivers without TrueHD capability?


2. I bought a dedicated 7.1 Siig Soundcard with SPDIF digital coax output. I installed this, but same story, just 2 channel.


3. I also have the internal MOBO SPDIF cable plugging into the 9800 GX2 card, and it will transmit audio through the HDMI cable. So I plugged the HDMI through my receiver and then output video to my projector from the receiver. Same story, only 2 channel.


Any tips? Seems to me like it's TMT, but digging through the TMT forums and AVS forums, seems like others have got it to work with standard 5.1.

You need to buy a soundcard that has Dolby Digital Live, which is a Dolby Digital encoder which will encode the 2 channel PCM to Dolby Digital 5.1 to transfer via bitstream to your receiver. Hope this helps.

 

I guess I don't understand... my copy of TMT down converts all the new surround formats to DTS over my spdif output. Does this not work for Ironman? Why would you need a separate DD live or DTS connect card? wouldn't that be the same thing as DTS neo:6?

 



Quote:
Originally Posted by X-Factor823 /forum/post/15052803


You need to buy a soundcard that has Dolby Digital Live, which is a Dolby Digital encoder which will encode the 2 channel PCM to Dolby Digital 5.1 to transfer via bitstream to your receiver. Hope this helps.

Quote:
Originally Posted by realtight /forum/post/15056704


I guess I don't understand... my copy of TMT down converts all the new surround formats to DTS over my spdif output. Does this not work for Ironman? Why would you need a separate DD live or DTS connect card? wouldn't that be the same thing as DTS neo:6?

Neither of those options give you TrueHD. It would give surround sound but inferior to TrueHD.

 



Quote:
Originally Posted by vladd /forum/post/15056921


Neither of those options give you TrueHD. It would give surround sound but inferior to TrueHD.

Unfortunately, there are no 7.1 encoder soundcards in the market currently, so most people are stuck with DD 5.1 sound via spdif (toslink), which isn't TrueHD but is close (minus 2 extra channels).

 



Quote:
Originally Posted by X-Factor823 /forum/post/15078248


Unfortunately, there are no 7.1 encoder soundcards in the market currently, so most people are stuck with DD 5.1 sound via spdif (toslink), which isn't TrueHD but is close (minus 2 extra channels).

I understand why people use SPDIF but it is not "close" to TrueHD. You are re-encoding to a much lower quality. You will get the sound equivalent of the DVD instead of the Bluray. If your receiver has multichannel in, it is a much better option. There are also boards that support multichannel LPCM (8200/8300 series motherboards, 4600/4800 series video cards, etc) over HDMI.

 



Quote:
Originally Posted by vladd /forum/post/15056921


Neither of those options give you TrueHD. It would give surround sound but inferior to TrueHD.

He doesn't GIVE A FLIP about TrueHD. He JUST wants std 5.1 which (of course) isn't possible on Iron man without DTS connect. It's not the hardware, it's the IDIOTS who produced the BD and LEFT out 5.1 in ENGLISH!

 



Quote:
Originally Posted by realtight /forum/post/15056704


I guess I don't understand... my copy of TMT down converts all the new surround formats to DTS over my spdif output. Does this not work for Ironman? Why would you need a separate DD live or DTS connect card? wouldn't that be the same thing as DTS neo:6?

It's doesn't work with Iron Man. There is an ENTIRE thread on the issues with Iron Man...

 

Worked this same problem with TMT and Blue-ray version of Iron Man for a few hours and stumbled into a fix for my setup (connected SPDIF optical out from motherboard's integrated IDT 7.1 audio to old Sony STR-DE845 receiver without Dolby True HD, TMT version 2.1.6.129, Win XP SP3).


Like Black Banshee, I got great sound in Spanish and French but 2ch junk in English TrueHD mode. I started by with TMT Audio mode set to SPDIF. I then found that changing the speaker settings in Windows XP had an affect on the audio setup menu in TMT. Went into Sounds and Audio Devices Properties, clicked the "Advanced..." button and changed the speaker setup to "Desktop stereo speakers" - essentially, 2ch.


Restarting TMT and going to the audio tab of the setup screen, I noticed that the "Enable audio mixer" option was no longer grayed out. I checked the box to enable the audio mixer, closed TMT and restarted. My old Sony receiver showed DTS 2/3 rather than Dolby for the opening HD banner and stayed in the DTS mode through the entire movie. I believe this configuration locks TMT into DTS for all other media but I haven't had time to confirm. Either way, it's nice to finally have the option of enjoying the sound at the same quality as the video.