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More => Old Versions => Media Center 17 => Topic started by: raiserroofer on February 17, 2012, 01:18:05 am

Title: Blu-Ray Playback Issue: Video delayed by ~3 frames
Post by: raiserroofer on February 17, 2012, 01:18:05 am: Hi there,

I'm watching a Blu-Ray using AnyDVD HD and running madVR. The image quality is fantastic, however there's a delay of (I would say about) 3 frames while watching Se7en at 23.97fps. The audio comes before the video.

I'm using Red October HQ (SQ doesn't change anything) and VideoClock doesn't help really.

Here's some extra info:

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=== Running Benchmarks (please do not interrupt) === Running 'Math' benchmark... Single-threaded integer math... 4.501 seconds Single-threaded floating point math... 2.530 seconds Multi-threaded integer math... 1.352 seconds Multi-threaded mixed math... 0.948 seconds Score: 2036 Running 'Image' benchmark... Image creation / destruction... 0.961 seconds Flood filling... 0.709 seconds Direct copying... 0.771 seconds Small renders... 2.719 seconds Bilinear rendering... 1.534 seconds Bicubic rendering... 1.374 seconds Score: 2726 Running 'Database' benchmark... Create database... 0.586 seconds Populate database... 2.205 seconds Save database... 0.423 seconds Reload database... 0.054 seconds Search database... 1.542 seconds Sort database... 1.345 seconds Group database... 0.873 seconds Score: 3059 JRMark (version 17.0.82): 2607
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Media Center 17.0.82.0 registered -- C:\Program Files (x86)\J River Media Center 17\ Workstation 6.1 Service Pack 1 (Build 7601) Intel Pentium III 2831 MHz MMX / Memory: Total - 4194 MB, Free - 3523 MB Internet Explorer: 9.0.8112.16421 / ComCtl32.dll: 5.82.7601 / Shlwapi.dll: 6.1.7601 / Shell32.dll: 6.1.7601 / wnaspi32.dll: N/A Ripping / Drive D: HL-DT-STBD-RE BH10LS30 Mode:ModeSecure Type:Auto Speed:Max Drive E: Mode:ModeSecure Type:Auto Speed:Max Digital playback: Yes / Get cover art: Yes / Calc replay gain: Yes / Copy volume: 100 Eject after ripping: Yes / Play sound after ripping: No Burning / Drive D: HL-DT-ST BD-RE BH10LS30 Addr: 9:0:0 Speed:48 MaxSpeed:48 BurnProof:Yes Test mode: No / Eject after writing: Yes / Direct decoding: No / Write CD-Text: Yes Use playback settings: No / Portable Device Info Removed devices: Interface Plugins: TiVo Server (Active)
Thanks!
Title: Re: Blu-Ray Playback Issue: Video delayed by ~3 frames
Post by: raiserroofer on February 19, 2012, 12:12:32 am: Bumping! Please help!

I should note that I'm using ASIO out to a headphone amplifier.
Title: Re: Blu-Ray Playback Issue: Video delayed by ~3 frames
Post by: CountryBumkin on February 19, 2012, 06:08:14 am: Did you try the audio-video sysnc option? Tools>Options>Video>Advance
Title: Re: Blu-Ray Playback Issue: Video delayed by ~3 frames
Post by: raiserroofer on February 19, 2012, 06:00:07 pm: Quote from: CountryBumkin on February 19, 2012, 06:08:14 am
Did you try the audio-video sysnc option? Tools>Options>Video>Advance
I have seen it. It asks me to put in the number of milliseconds that the video delays to match the audio, correct?

But that's just a rough estimate based on perception, and it just patches over the problem as opposed to solving it...

Thanks anyways though.
Title: Re: Blu-Ray Playback Issue: Video delayed by ~3 frames
Post by: Hendrik on February 20, 2012, 01:19:33 am: If the problem occurs on all your movie playback, it may just be a delay thats introduced by your hardware (most likely the TV). In that case, it cannot be automatically solved, thats what those configuration options are for to compensate for the delay.
Title: Re: Blu-Ray Playback Issue: Video delayed by ~3 frames
Post by: raiserroofer on February 20, 2012, 11:44:59 pm: Turns out it's for all video, not just Blu-Ray (I have used JRiver exclusively for music up until now). It also turns out that it is in fact ASIO causing this issue.

The ASIO buffering was set at 1 second, lowering it to the minimum (0.02 seconds) decreases the issue, but it's still there. Direct Sound eliminates it. Too bad.
Title: Re: Blu-Ray Playback Issue: Video delayed by ~3 frames
Post by: CountryBumkin on February 21, 2012, 04:27:29 am: Can you set the ASIO buffer to .05 and set the MC Audio-Video sync to .05 to get a 0 delay?
Also, did you try WASAPI?
Title: Re: Blu-Ray Playback Issue: Video delayed by ~3 frames
Post by: Trumpetguy on February 21, 2012, 07:51:56 am: I thought this was the common thing - and excatly why you need to adjust sync by perception. 3 frames at 23.796fps means you need to offset (i.e. delay) your audio by 125.1ms. Not an uncommon value in my experience, in systems with video processing delays downstream your computer.

What I also do not get is why reducing ASIO buffer should decrease the video delay. I would think the opposite, as the audio was already ahead of the video. Are you looking at two different problems here?

It is strange though, that using DirectSound eliminates the problem.