Audio rendering issue
I have a short movie that when rendered out in both Ppro cs3 or After Effects Cs3 the audio lags behind fractions of a second compared to when played in the program. This is important because there are things happening on a beat and when rendered out it becomes a fraction of a second off beat. Are there some kind of settings I am missing. what is "Interleave" ?
I see this in only some of the export settings. |
What is the source file type?
Does it remain a consistent amount out of sync or get progressively worse? What rate was the original audio recorded in; 32, 41, 48 Khtz? |
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So define 'fractions of a second'. Is that 1 frame? How did you establish the lagging? On a set top box with a HTC connected? Is the delay properly adjusted? Interleave has nothing to to with this, it is about the video part and how each field is composed. |
NTSC...
They delay is about 1-2 frames. It sounds small but it is the difference of the horses feet hitting the ground over a jump on the beat. If I render out of Ppro with QT animation and play it in after effects all is good. If I render out of PPro to another QT compression (ie photo jpeg, H. 264) it happens. Same thing when I export out of After effects. |
Howard,
If you are on a MAC, I have not suggestion, but if you are on a PC, use another codec than QT. QuickTime has been known to cause all kinds of problems on PC's and therefore is usually called QuiRckTime. |
I am on PC. Can you recommend a codec that is lossless but not as big as uncompressed DV?
For intial playback on computer to test out effects and final renders I have always used QT Photjpeg w/ no problems but this is the first time I have such critical cuts to the music. I did try DV .avi last night and it was fine however the file size was more than twice that of QT photo jpeg with very little quality difference. |
I would try Lagarith or HuffYuv. Both are visually lossless, but not as hungry for disk space as uncompressed.
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