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| Unofficial VirtualDub Support Forums > Advanced Video Processing > Audio-video Mismatch. |
| Posted by: aleksander Dec 3 2011, 09:13 AM |
| File: AVI, 640x480p, 30.000 fps (real even 30 fps, not some strange values like 29.997 and other leftovers from mono->color analog era), uncompressed , raw RGB data, audio uncompressed too(wav), 2x44100Hz, 16 bit, file created with Adobe Premiere Pro 2.0, interleave 1second (not 1 frame), recompress which means there is always recompression between input and output in adobe, size 1.4TB (this is not mistake), input material contains no lag in audio video (checked with MPC 1.4.2689.0) K-lite 6.5.0 mega, win xp 32 pro, Vdub 1.9.11, compression to: ffdshow-H264, 4cc:x264, 1 pass - average bitrate, 4444kbps, max IDR 250, min IDR 1, b frames off (should I switch it on?), cabac on, generate access to delimiters off, "each MB..." off, transform coeff on, interlanced off, loop filter off, 2 cores used, lame mp3 256 kbps abr. Problem: each 40 minutes of movie creates 2 sec lag (audio lags video) (checked with MPC 1.4.2689.0) Any idea? |
| Posted by: IanB Dec 3 2011, 09:02 PM |
| Well 40 minutes at 30.0 fps is 72000 frames and at 30000/1001 (29.97) fps is 71928 frames, a difference of 72 frames or 2.4 seconds. I think something in your processing chain is assuming something it should not be. |
| Posted by: aleksander Dec 17 2011, 08:52 PM |
| Ok, what is solution? I have tried many different tools, effect is always the same. |
| Posted by: fccHandler Dec 17 2011, 09:26 PM | ||
The abr setting is probably a bad choice. Try it with cbr (or just uncompressed audio) and see if you get the same result. |