Originally Posted by sal9000
I've been following this forum for some time and never seen a discussion of the problem that I am having with my BDP 103.
I have contacted OPPO customer support and they have replaced my unit with another that has the same problem as the original that is set out below.
When the player is directly connected (no intermediate devices of any kind) to the TV (Panasonic TH50PZ700U) from HDMI-1 I get random audio only drop outs that last anywhere from a couple of seconds to ten seconds. When I replay the section of the disc (blu ray and dvd) the audio is always there. I have followed all of OPPOs instructions. I am on my third HDMI cable (two of which they supplied), deep color is off, HDMI is set LPCM there are no firmware upgrades for my TV. The problem did not exist until sometime this summer. I believe it may have begun after the May firmware upgrade. I know it did not exist prior. Since you can't downgrade to previous firmware there is no way for me to be certain that this is the problem; however, while the unit was in transit to and from OPPO I reconnected my BDP83 and there were NO audio dropouts. When I got the replacement 103 and connected it, the dropouts began again almost at once.
After trying all the suggestions that I have found on this forum, I was ready to give up and stop using the 103. As a final attempt I reset the factory settings, set HDMI audio to LPCM and switched to the HDMI2 output, leaving the HDMI 1 output unconnected. The audio dropouts stopped completely. To verify that the problem was still there, I switched back to HDMI 1 and the problem was back instantly. I am now using HDMI 2 with no problems but it bothers me that I cannot get the player to work the way it is supposed to.
The people at OPPO always answer my emails, but, honestly, they give me the impression that they doubt my account of what is occurring. They keep suggesting the same thing over and over and asking questions that I have already answered. It's disappointing. I am open to any suggestions.
Are the audio dropouts spaced uniformly in time -- say once every 10 minutes? If so, then the odds are the Panasonic is failing the periodic, background copy protection check that happens over HDMI. Usually that check happens in the background and you never notice it, but if it fails, a retry happens and audio is muted while that's going on. The minimum time for an HDMI retry is on the order of 2 seconds. If more than 1 retry is needed to get things working then the delay goes up in multiples of 2 seconds.
The first thing you need to know is that HDCP (the copy protection protocol layered on top of HDMI) *LIKES* to fail. It is finicky by design. Often such failures are due to marginal cables, but you seem to have eliminated that.
What I think is going on in your case is that the Panasonic is not responding fast enough to the check on HDMI 1 (which is a fairly complicated sequence due to going through 2 video processors in the OPPO). Evidently it isn't failing BY MUCH because things are working in the simpler case on HDMI 2 and also on the 83. It may simply be that your Panasonic is not compatible with HDMI 1 output from the 103. There are lots of ways this can happen, only one of which might be fixable by you -- and that would be to check if there's a firmware update available for your model of Panasonic. These sorts of problems arise because the HDMI chips come from different vendors, who interpret the HDMI specs differently, compounded by the firmware that operates those chips, perhaps not being optimal for speed.
Since the Panasonic is ALMOST working with HDMI 1, it is also possible that HDMI-related settings in the Panasonic might alter its response time. For example, try turning off anything having to do with remote control over the HDMI cable in the Panasonic (HDMI CEC is the real name, but Panasonic might call it something else). On some displays, HDMI CEC is enabled automatically on only 1 input. If that's true about yours, try another input. Also turn OFF HDMI CEC in the OPPO.
Some displays also spin their gears more than makes sense when sent 1080p/24 video. Try setting 108p/24 Output OFF in the OPPO.
You say you already have the OPPO set to LPCM audio output. Also check that you are using an explicit video output resolution choice -- e.g., 1080p instead of AUTO or Source Direct.
If you've not done so already, also check on the owner's thread for your Display as there are other two processor players out there which may be causing the same problem, and some other owner may have found the magic change to fix it.