Xfire video recording, audio increasingly out of sync.
4 replies, posted
I'm cheap, so I use Xfire to record games since it's free. It seems to do a good job with the video, and the audio sounds fine too, but as I watch the raw video file the audio keeps getting further and further behind the video until it's over 3 seconds behind at the end of a 5 minute file. Is there a way to keep the A/V in sync, or an easy way to record the sound separately and just cram it into the video? I found a Youtube video showing how to fix the problem with Vegas, but I'm not really interested in pirating software.
First time posting in Tech Support that I know of, so I don't know if this qualifies.
The cause of the sound sync loss is due to variable frame rates and the encoder not compensating for it. The easiest way to fix the problem is force the game to run at a fixed frame rate that you know your hardware can maintain (usually 24 or 30 fps.) Another option is to use a different video codec that can compensate for variable bitrates.
Yeah, but doesn't that come at the cost of framerate if I run it that low? My hardware should be able to keep up, the problem wasn't any better or worse on my 2007 Dell desktop. What do you mean by an alternative codec? Can I replace the Xfire codec, or do I have to use another piece of recording software?
And Xfire locks it at 60 FPS anyway, right? Framerate shouldn't vary, and I don't think it ever drops below that.
Movie film (35mm) runs at 24 FPS. Television broadcasts run at 25 FPS (PAL/SECAM) and 29.97/30 FPS (NTSC). Even most 720/1080p HD movies run at 24/30 FPS.
You don't need insane framerates to capture in-game footage. Higher frame rates than those give minimal benefits (unless extreme precision is required, which is most often not necessary) and can make the resulting video file more than ten times larger than it otherwise would be.
Since I've never used Xfire, I'm not sure how it records video. It likely has its own internal codec which may or may not be changeable or configurable. If you want to record Source games, just use source recorder, or FRAPS for other things.
Derp, I totally forgot about Source Recorder. I also forgot how to use it. Do you know of a good tutorial on it? I tried the straight-to-avi method and the video file was 0 kb in size.
Seriously, I need help with Source Recorder. I managed to fill 150 GB of space with .tga files using it. Yes, I am a huge moron.
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