Audio out of sync with video-anyone have that problem?

[Dave McElderry]

6 frames is 1/5 of a second. I haven't actually tried it to see, but it seems like that would be very difficult to notice. I've always been pretty sensitive to audio/video sync issues but I don't know that it would bother me. I believe you Gerry, I'm just commenting.

[Ron]

Just 2 cents... no one has mentioned disk space/fragmentation. Also make sure it's at least a 7200 RPM drive. If the disk can't keep up when processing, [dropped frames] may occur. I always found that if I minimally defragmented the drive just before working with video (every time), it solved audio sync issues.

[Gerry]

Thanks, everyone. Guess I'll have to shift all the audio, dang it!

Dave -- actually, it's really noticeable because people are talking to the camera, and what their mouth is saying isn't quite what you're hearing.

Ron -- Good thought, but it happens on the iPad as well as the computer. And it's just the "iPad" settings.

Another of life's mysteries...

[Ron]

Ron -- Good thought, but it happens on the iPad as well as the computer. And it's just the "iPad" settings.

I'm talking about exporting, not playing the video. the iPad setting may need more power to create.

[Gerry]

Ron -- Good thought, but it happens on the iPad as well as the computer. And it's just the "iPad" settings.

I'm talking about exporting, not playing the video. the iPad setting may need more power to create.

OH! Interesting thought... Wow.

I know I tried all the different iPad/iPod/Touch settings last night and had the exact same delay problem with all of them. It's too bad there's not another way to generate an mp4 without using that H264 thing.

[Steve Grisetti]

" It's too bad there's not another way to generate an mp4 without using that H264 thing."

Well, technically, unless it uses the H264 thing, it's not an MP4.

But have you tried the output setting for iPad under Publish & Share/Portable Devices?

[Gerry]

" It's too bad there's not another way to generate an mp4 without using that H264 thing."

Well, technically, unless it uses the H264 thing, it's not an MP4.

Oh. Heh. Didn't know that. (I figured there was an H263, 262, etc.)

But have you tried the output setting for iPad under Publish & Share/Portable Devices?

That's the one that started this whole thing. I used the iPad Maximum Quality Widescreen, low quality widescreen... all the iPod and iPhone settings available in that drop-down. Results all the same: the audio is 6-7 frames ahead of the video.

[bryanedmondson]

I am working with some public domain videos. They are t.v. commercials from the 50's. Unfortunately some of the downloaded files have a audio synch problems and the mouths moving look like bad Chinese movies in English.

I can only find information online to synch audio that is recorded from another mic and needs to be joined with the main video once the video cam audio mic recording is deleted.

I have no idea if I can correct these downloaded commercials. I have tried to unlink video and audio and use time stretching on the video track. I have some success, but it just is not acceptable.

If anyone knows anything that can be done I would appreciate the input.
Thanks.

Scratching my head, trying to synch.

[Dave McElderry]

I am working with some public domain videos. They are t.v. commercials from the 50's. Unfortunately some of the downloaded files have a audio synch problems and the mouths moving look like bad Chinese movies in English.

I can only find information online to synch audio that is recorded from another mic and needs to be joined with the main video once the video cam audio mic recording is deleted.

I have no idea if I can correct these downloaded commercials. I have tried to unlink video and audio and use time stretching on the video track. I have some success, but it just is not acceptable.

If anyone knows anything that can be done I would appreciate the input.
Thanks.

Scratching my head, trying to synch.

Don't try to time stretch. Once the audio and video are unlinked just move one or the other ahead or back as necessary until they're synced. In some longer clips I've seen, the sync problem sometimes gets worse and worse over long stretches of time, which would necessitate breaking it up into shorter cuts and adjusting each. But if you're working with something as short as a commercial I don't think that will be an issue.

[bryanedmondson]

That is a great idea. I did not try moving the unlinked audio clip. I dread dragging clips as I was not knowledgeable of how to move the clips in small increments. I always experienced dragging a clip and having it jump in lengths rather than sliding with precision.
Yesterday I realized that moving the CTI by frame fractions will allow a dragged clip to "snap" to the newly adjusted CTI line. I never would have put 2 and 2 together if you had not replied to my post.
Thanks.

[Dave McElderry]