Audio/Video sync issues with HR21

1276 Views 6 Replies 6 Participants Last post by hasan, Aug 20, 2008

kornbln

Discussion Starter · Aug 19, 2008

I have an HR21 connected to a Vizio plasma via HDMI (for video only). Audio is sent to my A/V receiver via optical. HR21 is set to output Dolby Digital so I'm getting movies in DD5.1. The problem is that I occasionaly get channels where the audio and video are out of sync. Is this a problem with the current software (v 255)? Or could be it caused by using optical instead of the audio from the HDMI? I tried grabbing the audio from the optical output on the TV but it didn't seem to pass the DD5.1 even when I set the TV to output Dolby Digital.

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Vin

· #2 · Aug 19, 2008

kornbln said:
I have an HR21 connected to a Vizio plasma via HDMI (for video only). Audio is sent to my A/V receiver via optical. HR21 is set to output Dolby Digital so I'm getting movies in DD5.1. The problem is that I occasionaly get channels where the audio and video are out of sync. Is this a problem with the current software (v 255)? Or could be it caused by using optical instead of the audio from the HDMI? I tried grabbing the audio from the optical output on the TV but it didn't seem to pass the DD5.1 even when I set the TV to output Dolby Digital.

I get occasional A/V sync problems with my HR21 as well (connected to a Toshiba 1080i CRT based RPTV), whether I use optical to receiver or HDMI > AVR > TV. Sometimes it's only slightly off but at other times it's so bad it's just ridiculous....totally unwatchable.

Your TV will only output DD5.1 (when available) from it's internal tuner.

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jaxfan

· #3 · Aug 19, 2008

I have the same problem. HR21 ->HDMI -> Samsung FPT5084 -> Yamaha RV901. I am going to try the optical out from HR21 to Yamaha to see if that helps.

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rudeney

· #4 · Aug 19, 2008

I know early on with the HR2x, there were rampant lipsync issues that could often be resolved by using the trickplay features to backup and jump forward. Recently when I had lipsync issues, it was on FOX, so I checked OTA (connected to the TV, not the HR2x) and it was happening there, too. I also had lipsync problems on Discovery one day and I checked my other HR’s and H20 and they were all doing it so I assume it was a problem unrelated to my receivers.

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Pugsly1999

· #5 · Aug 20, 2008

If you have left it on same channel for a while may do that, ch up and back down, should sync back up. How long of cable from dtv to sourround sound? you might need to change the delay in your sourround sound

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kornbln

Discussion Starter · #6 · Aug 20, 2008

phqyouazzhol187 said:
If you have left it on same channel for a while may do that, ch up and back down, should sync back up. How long of cable from dtv to sourround sound? you might need to change the delay in your sourround sound

it doesnt seem to matter if it's been left on the same channel for a while... and it's never done it before I got this receiver nor with DVDs.. so I don't believe it's a delay setting issue in the a/v receiver...

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hasan

· #7 · Aug 20, 2008

If changing channels up and down doesn't fix it, and you've tried HDMI vs. Optical, then it falls into one of the following:

1. Provider issues (I see these all the time on OTA with several HDTVs.)

2. D* processing issues.

3. Box issues (it's too busy to keep up, or has an actual hardware problem)

4. Software issues (both related to 3 or entirely different).

As you can see, this is not a simple situation. We have been living with it intermittently since HD came on the air, and long before we had sat boxes for HD.

Generally, I don't see it a lot ....but it is there, both OTA and Sat. Some channels have been horrendous at times (ESPN-HD), but have improved of late.

Aside from news, I probably watch 99% of my TV via recording. I don't see it a lot, as I said, and I see no pattern of recorded versus Live (which isn't really live either)

The only thing I can say is over the years it has gotten better. It still rears its ugly head, independent of the particular sat box (or OTA tuner). I see it at times on an HR20-700, HR20-100, HR21-200, Samsung HL-R5667W, Sanyo 37" LCD, Sanyo 42" LCD.

With so many variables involved, I gave up trying to isolate them a long time ago. It just isn't within my means (time and expertise), except in the most egregious cases. Since things have generally improved, I found being patient with the problem the best course, and only trying specific fixes in the most severe "new" cases.

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