Recordings: Audio/Video out of Sync

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  • November 6, 2017 at 8:48 PM #16879
    Dijago
    Participant

      Hey,

      my OSSC 1.6 arrived last week and after a couple of tries, most of my consoles worked fine with it! Of course I’ll have to get my 3DO and CD-i RGB modded (or buy a RGB compatible CD-i), which is annoying, but I can live with that.
      Even 4X mode and 2X480p even work with my shitty, cheap TV, which is nice.

      However, now I tried recording a bit of footage and everything SEEMS to be fine. Picture is there, Sound is there, I was happy. However, after recording a couple of clips I saw a HUGE problem: Audio and Video was out of sync. I use a Hauppauge HDPVR Rocket

      First I tried my 60Hz modded PAL Mega Drive – out of sync, both with Mega Drive and Master System games.
      See video:

      Well, it’s a modded PAL System, I know the OSSC may cause problems with those. So I tried my Dreamcast next. Same Problem.
      See video: https://youtu.be/r_1qCCETDz8

      Also, my SNES looks like this. Is this the knows problem caused when using a PAL SNES?

      I’m currently testing other consoles. And I want to clarify: Picture and sound are fine on my TV (except SNES), the only problem is the recording. I’m also not the most knowledgeable guy when it comes to this. So it could be very possible that I accidentally changed something without realising.

      Does anyone know where the problem lies and if/how it can be fixed?

      November 6, 2017 at 9:21 PM #16883
      BuckoA51
      Keymaster

        That SNES issue doesn’t look like anything the OSSC could do, are you sure your SNES isn’t faulty?

        November 6, 2017 at 10:13 PM #16884
        Dijago
        Participant

          My SNES worked fine without the OSSC and with my cheap Scaler last time I tried it, however, when I wanted to check it again a couple of minutes ago the PSU started buzzing and I didn’t dare turning the console on. Could a faulty PSU cause a problem like this?
          I will also invest into a new RGB cable, the one I use for my SNES isn’t the best.

          Update on the out of sync issue: played around with my Mega Drive

          2X Mode: not recognized
          3X Mode: out of sync
          4X Mode: out of sync
          However – Passthrough: No problem…weird.

          November 7, 2017 at 5:38 PM #16920
          BuckoA51
          Keymaster

            Even Dreamcast being out of sync makes me think it’s not a frame locking issue… I’m stumped at this point I’m afraid. What’s CPU usage like as you’re capturing?

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