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Author Topic: Lip Sync Probs - HDHomeRun (DVB-T) & Reclock  (Read 5636 times)

jmone

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Lip Sync Probs - HDHomeRun (DVB-T) & Reclock
« on: January 09, 2010, 09:35:39 pm »

I'm using a HDHomeRun DVB-T Network Based tuner. All works fine with D'Show, but if I use Reclock then I get various Audio Lip Sync Issues both with Timeshift ON and OFF.  I did not see these problems when I last used DVB-T, but it was a dvico card and pre Win-7 so not a great comparison.

One issue is that Reclock does not seem to like it when there is a issue with the Transport Stream (eg a drop in Signal Quality). D'Show Audio will "glitch" with the Video but stay in Sync, Reclock will jump out of Sync. On some channels, Reclock will start off in sync and just start drifting out....A FFW/RWD will bring it back into sync for a bit then it starts all over (but pause does not help).

I've tried various combo's of Filters, settings etc (defaulted and cleaned up Reclock). Any suggestions???

Thanks
Nathan

Note: Cross post @ Slysoft's Reclock Forum.
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raym

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Re: Lip Sync Probs - HDHomeRun (DVB-T) & Reclock
« Reply #1 on: January 10, 2010, 04:20:03 am »

Probably not much help to u but I use reclock with live tv too (win7 x64). DVICO card though. When the signal drops I hear a slight stutter/glitch but It ALWAYS re-sync's itself perfectly. Its always worked very well for me - as well as under XP at least. All bets are off if you don't use timeshifting though. Reclock is well known to not handle non buffered video streams too well. I guess it could have something to do with the way the HD HomeRun device works?  Network latency?   
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jmone

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Re: Lip Sync Probs - HDHomeRun (DVB-T) & Reclock
« Reply #2 on: January 10, 2010, 04:49:03 am »

Thanks - I also never had a problem with DVico & Reclock with TS on.....It is however a dogs breakfast in my current setup...
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jmone

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Re: Lip Sync Probs - HDHomeRun (DVB-T) & Reclock
« Reply #3 on: January 10, 2010, 04:25:56 pm »

Thanks to a post on the Reclock forum - it looks like setting Reclock to Resample (eg 192khz) instead of "Leave Original" fixes the problem!
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raym

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Re: Lip Sync Probs - HDHomeRun (DVB-T) & Reclock
« Reply #4 on: January 10, 2010, 06:49:27 pm »

Thanks to a post on the Reclock forum - it looks like setting Reclock to Resample (eg 192khz) instead of "Leave Original" fixes the problem!

Hmmm, interesting. Would this also apply to SPDIF output?
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jmone

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Re: Lip Sync Probs - HDHomeRun (DVB-T) & Reclock
« Reply #5 on: January 10, 2010, 08:59:32 pm »

Hmmm, interesting. Would this also apply to SPDIF output?

NFI (but I guess so as the resampling seems to keep in sync, so as long as it is going through that sub routine.....) - all HDMI up here
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raym

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Re: Lip Sync Probs - HDHomeRun (DVB-T) & Reclock
« Reply #6 on: January 11, 2010, 12:41:50 am »

I tried to check this setting out in ReClock but cant find it. Any clues?
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jmone

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Re: Lip Sync Probs - HDHomeRun (DVB-T) & Reclock
« Reply #7 on: January 11, 2010, 03:48:42 am »

The Output Sample Rate for PCM Sound was what I changed (you only see it in the Config screen)
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