And VirtualDub comes with 39 powerful filters for processing some or all of your movie in various ways: resizing, tweaking brightness or contrast, deinterlacing, rotating, sharpening or smoothing are just a few of the options on offer.Īlternatively, you can simply re-encode a clip, perhaps to reduce its size for internet downloads, tweaking frame size, frame rate, colour depth, compression algorithm, and more. The program can save the soundtrack from a clip, or replace it without affecting the video. You're able to remove segments of a video, for instance, then save the rest, without re-encoding. Real-time noise reduction then ensures the best possible picture quality, while an integrated volume meter and histogram makes it easy to monitor your input levels,Īnd if you already have a video clip to hand (AVI format, preferably) then VirtualDub will allow you to process it many useful ways. You get complete control over frame rates, video formats, video and audio compression methods, and more. The program first helps you get video into your PC, from a capture card, video camera, any Video for Windows-compatible device. I could capture it just fine with video and audio in sync using ArcSoft ShowBiz for example, but am not using it because it has other issues.VirtualDub is a fast, flexible video capture and processing tool. Why am I not using other video capture tools? Because either they do not work (ffmpeg does not let me capture audio with this setup - see this, or they have other issues (not related to a/v sync)).Īnd finally: I did verify through different independent means that the issue is not with the VCR or the USB capture device or the VHS itself. I have about 100 VHS to capture and do not want to go manually through each one. Hence I do not want to fiddle with post-processing and remuxing to manually correct for that. Now, I think this delay is somewhat random and not necessarily exactly 4 seconds, 4 seconds is the average. I tried it with all kinds of options: video - overlay and no display audio - with playback and without tried all kinds of timing settings and all combinations of them tried running with admin mode tried capturing both audio and video in raw uncompressed format tried increasing buffer sizes.If I am capturing audio and video and displaying both video and have audio playback enabled, then again audio and video are in sync in VD but NOT in sync in the avi generated.
If I only preview audio and video w/o capturing it both audio and video in VD are synchronized.This results in video being delayed by 4 seconds roughly. All the while audio is playing and being captured. Crossbar Input pin 5 - "Audio Line" related input pin: 1įor some reason, when I start capture I get a black screen for 2 seconds, then for another roughly 2 seconds it kind of blinks and only then the capture starts. Crossbar Input pin 4 - "Audio Tuner" related input pin: 0 Crossbar Input pin 3 - "Video YRYBY" related input pin: 5 Crossbar Input pin 2 - "S-Video" related input pin: 5 Crossbar Input pin 1 - "Video Composite" related input pin: 5 Crossbar Input pin 0 - "Video Tuner" related input pin: 4 Crossbar Output pin 1: "Audio Decoder" related output pin: 0 current input pin: 5 compatible input pins: 5 Crossbar Output pin 0: "Video Decoder" related output pin: 1 current input pin: 1 compatible input pins: 1 2 Crossbar Switching Information for ezcap Video Grabber: Pin "Audio PCM Out" (alternative pin name "3") Pin "Video YUV Out" (alternative pin name "2") I am using VirtualDub 1.10.4 to capture audio and video from video-only DirectShow device: DirectShow video device options (from video devices)
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