Anyway to schedule captures to be recorded with VirtualDub?

[candykid]

I am having audio sync problems with ATI's software. I can do my recording great in Virtual Dub b/c it can lock the audio stream to the video.

Is there anyway with either the batch tasks or maybe some sort of windows macro to do scheduled recording with Virtual Dub? Or even better somehow convert the ati tasks created by the GuidePlus so it opens up virtual dub to do the recording but i could still plan my recordings in the Program guide.

I think my problem is my Sound card clock stability is +.20 it ranges from .23 - .30. My system hardware is in my signature. Is clock stability somthing i could correct by trying to mess with ACPI again and change the resources around or is that just a hardware downaide of my sb live.

Thanks in advance

P.S. - Anyone had better luck with the radeon software in XP then they did in 2k?

[cruffino69]

I think there's an application that lets you schedule captures with VirtualDub. Do some searching on these forums, I'm sure you'll find it.

I had a similar setup (I changed my sound card from an SB Live! Value to a Turtle Beach Santa Cruz). I had no audio sync problems at all (I run Win 98SE) with the SB Live! Value. But something I've done within the past several months has totally screwed up my ability to capture without dropping frames, which causes audio sync problems *after* I demux/mux for VCD compliancy. I noticed that the 7189 drivers seemed to eliminate any reports of dropped frames even though I KNOW there are due to the audio problems. I went back to a prior release and the reports are back, but my drop-free captures aren't.

I end up having to perform some funky edits to shorten up the audio track to match the video. I keep the original demuxed video file (*.m1v). Then I use VirtualDub to search through the remuxed MPEG to find where the audio goes out of sync first. When I find it, I use the audio skew correction (from the menu bar, Audio->Interleaving...) to find out how far off it is. I make adjustments in increments of 33ms (the time for one NTSC frame) until the audio is resynched. I make a note of how many frames and where this occurs and move on until I notice the audio is out of sync again. I do this interatively until I reach the end of the clip. I then use the edit points I've noted and eliminate the appropriate number of frames at each point (I use MyFlix for this). This produces an MPEG with an audio stream synced to the original video stream (the one that I saved from the original demux step). Muxing these two together results in an MPEG with synced audio.

Why the hell do I do this instead of using VirtualDub to capture in the first place? Because it's *still* faster than converting AVI->MPEG later with TMPGEnc. Usually, there are only one or two times where there are drops (if any occur at all) over 1 hours worth of capture.

[holistic]

http://www.virtualdub.net/download.htm