The NAD T775/T785 AVRs w/ HDMI 1.3 Thread! - Page 130

Originally Posted by xterc

Have you tried changing the PS3 to PCM? I never had any luck with the PS3 and the VM200/AM200 combo with bitstreaming (but when I had those cards it was pre 1.34). If you don't care about video upconversion then the VM150 does seem to be the solution, for me it was the ONLY solution as I wanted 3D capability. There were some initial teething problems with the VM150, but they seemed to be ironed out now.

Originally Posted by cat8321

Yes, I've tried all possible configurations to no avail. The only thing that has worked with PS3 is to switch the audio to optical output. I could live with that if it weren't for the problems with cable (pops & clicks) and Dolby Digital dropouts. 1.34 firmware actually made my problems worse. Been offered a refund or a switch to VM150/150x. I'm not planning on 3d anytime soon, but wonder if the video processing in the VM150 would offer any advantage over going back to the VM100.

Originally Posted by bommai

There is no video processing in VM150. Only VM200. Even the latest receivers have VM150. I would highly recommend you take the VM150 if NAD is offering you that. VM100 is a step backward unless you cannot live without 4 HDMI inputs. VM150 has been rock solid for me. However, you could have other hardware issues that are not MDC related!

Originally Posted by cat8321

Yes, I've tried all possible configurations to no avail. The only thing that has worked with PS3 is to switch the audio to optical output. I could live with that if it weren't for the problems with cable (pops & clicks) and Dolby Digital dropouts. 1.34 firmware actually made my problems worse. Been offered a refund or a switch to VM150/150x. I'm not planning on 3d anytime soon, but wonder if the video processing in the VM150 would offer any advantage over going back to the VM100.

Originally Posted by dbostock

Thanks for the info xterc. It's happening at normal listening levels...probably around -27 or so. I have it connected to a surge protector, but no UPS.

I have noticed I can reproduce it if I skip through songs or skip through commercials on the DVR. I'll play around some more. I also sent a message off to NAD tech support.

Originally Posted by cat8321

One last thing... I recently purchased a bunch of assorted length HDMI cables when re-organizing my AV rack. Everything was working great until I switched to my PS3. Sync was lost every 2-3 seconds, I swapped the cable out with another 2' cable and the same issue occurred. Changing to a 3' or 5' cable removed the issue. I thought I'd mention it because it was a problem that appeared with the same equipment most of us are using. The same 2' cable worked fine with my BDP-93.

The only difference in the cables was the length? Interesting. What I don't understand (well, actually there's a lot) is why my PS3 plays BluRays perfectly fine with an occasional audio dropout over the same HDMI cable and all other programming (streaming, video games, etc.) will barely pass audio at all. Is the handshake protocol that much different?

Originally Posted by oblio1967

My experience with dropouts from T775 non HD (whatever firmware) and only when audio is bitstreamed/routed via HDMI. With SPDIF no problems:

I use a projector for a display and everything is hooked to the receiver. I mostly use HTPC and Oppo BDP83; seldom use a PS3.

If projector is turned off, no dropouts whatsoever and no matter what source!!

Turn the projector on (and I have 2 - one HDMI 1.2 and one HDMI 1.4) dropouts start to occur, depending on source and mainly on source setup.
- SACD from Oppo was a pain to listen to. Some CD's also.
- Videos from PC were ok via coax bitstreaming, but mostly not ok when bitstreaming thru HDMI.

What I noticed & done:
PC HDMI bitstreaming: On 24p source no problems and the PJ was correctly switching to that resolution.
On 50i or 60i material, where the PJ was using 50/60p instead, audio dropouts occur.
I finally managed to get the PJ and PC (using madvr and Nvidia custom res) to switch to 50/60i resolutions and surprise: no more dropouts.

Oppo with display output set on auto, the resolution given when playing CD/SACD was 1080-50p - dropouts big time
Changed display output to source direct and resolution changed to 1080-50i. Surprise: no more dropouts! If by mistake the HDMI handshaking did not work well and had 50p a restart of Oppo would output 50i and problems solved.

I think NAD has to do some work on these issues as sound problems should not depend on display/resolution used.
Changing cables, as suggested by NAD, did not do anything to stop dropouts; only the above steps worked.

Maybe my experience can help some of you with similar issues.
Cheers.

Originally Posted by bommai

Have you tried the latest firmware 1.34? Also 1080p60 and 1080p50 require more bandwidth than others you listed. Cables can have the issue. I had a 2 ft cable that had an issue with even 1080p24. Changing that out fixed my problem. I have a 775hd.

Originally Posted by oblio1967

My experience with dropouts from T775 non HD (whatever firmware) and only when audio is bitstreamed/routed via HDMI. With SPDIF no problems:

I use a projector for a display and everything is hooked to the receiver. I mostly use HTPC and Oppo BDP83; seldom use a PS3.

If projector is turned off, no dropouts whatsoever and no matter what source!!

Turn the projector on (and I have 2 – one HDMI 1.2 and one HDMI 1.4) dropouts start to occur, depending on source and mainly on source setup.
- SACD from Oppo was a pain to listen to. Some CD’s also.
- Videos from PC were ok via coax bitstreaming, but mostly not ok when bitstreaming thru HDMI.

What I noticed & done:
PC HDMI bitstreaming: On 24p source no problems and the PJ was correctly switching to that resolution.
On 50i or 60i material, where the PJ was using 50/60p instead, audio dropouts occur.
I finally managed to get the PJ and PC (using madvr and Nvidia custom res) to switch to 50/60i resolutions and surprise: no more dropouts.

Oppo with display output set on auto, the resolution given when playing CD/SACD was 1080-50p – dropouts big time
Changed display output to source direct and resolution changed to 1080-50i. Surprise: no more dropouts! If by mistake the HDMI handshaking did not work well and had 50p a restart of Oppo would output 50i and problems solved.

I think NAD has to do some work on these issues as sound problems should not depend on display/resolution used.
Changing cables, as suggested by NAD, did not do anything to stop dropouts; only the above steps worked.

Maybe my experience can help some of you with similar issues.
Cheers.

Originally Posted by xterc

I had to build a custom monitor.inf file that had the video profile of my TV and the audio profile of the NAD to get everything to work with my nVidia 470GTX (the T785 isn't supported by 3DTV play for example).

Originally Posted by xterc

I believe there is an upgraded version (HDMI 1.4a) of the VM100 that comes with the HD2. Please correct me if I am wrong.

As for the deep colour comment, I don't think there is a blu ray disc that has 36 bit encoding. The VM150 had a deep colour issue that a recent firmware fixed.

Originally Posted by bommai

My wife and I were watching the Bluray version of "Warrior". Sony S5000ES connected to the T7775HD through HDMI. Klipsch Reference RF5, RC7, RS35 speakers. I typically watch it movies at -23dB especially at night time. There were several previews before the movie, I was skipping through the previews and suddenly I watched the mini OSD for the volume level going up. It went up all the way to -18dB. I thought at first may be I pressed on the remote by mistake. I lowered the volume back to -23dB. A few minutes later, it happened again and this time I was not even holding the remote. There was not even line of sight with the remote. The volume went up again. What could have happened? This is dangerous. My klipsch are very efficient and get very loud. I want to make sure this does not happen when I am not around. It did not happen during the rest of the movie, so I cannot repeat it at will.

Has this happened to anyone of you?

Originally Posted by bommai

My wife and I were watching the Bluray version of "Warrior". Sony S5000ES connected to the T7775HD through HDMI. Klipsch Reference RF5, RC7, RS35 speakers. I typically watch it movies at -23dB especially at night time. There were several previews before the movie, I was skipping through the previews and suddenly I watched the mini OSD for the volume level going up. It went up all the way to -18dB. I thought at first may be I pressed on the remote by mistake. I lowered the volume back to -23dB. A few minutes later, it happened again and this time I was not even holding the remote. There was not even line of sight with the remote. The volume went up again. What could have happened? This is dangerous. My klipsch are very efficient and get very loud. I want to make sure this does not happen when I am not around. It did not happen during the rest of the movie, so I cannot repeat it at will.

Has this happened to anyone of you?

Originally Posted by kertofer

So it's like a computer?

Person "my computer is not running right"
Me "have you turned it off and back on again?"
Person "wow, that fixed it. Just like last time"
Me "yeah, wonder if there could be a pattern here"

:-)