Good ears and eyes - When you believe its out of sync

frank_jarle wrote on 3/17/2003, 11:22 PM
Hello guys,

I have been doung the first tutorial in the manual of Vegas (the pdf file). So i am suppose to replace the poorly sound from the guy with a studio recorded voice-over. this is fine, no problem.

But i could need some advice from you guys out there. Do you ever remember when you were watching a TV program and the sound was out of sync with the picture by some ms or seconds? Sometimes i get this feeling as well.

So when i do the tutorial i have this deep feeling that the audio is out of sync by some milliseconds, i really wonder how you guys goes about fixing this, is it any good way or is it only a pair of good ears and eyes?

...Even when i zoom all the way in to see the audio and video at same time i just feel it is something there, even the slightest 0.2sec i notice sometimes....Again its just a feeling i got :)

Frankie
Singapore
Shuttle XPC SB51G
i2.4Ghz Corsair VMS3200 512 RAM

Comments

Grazie wrote on 3/18/2003, 12:51 AM
Okay - I've read what you've written - I don't see a question amongst your "statements" - yet. Could you ask what you want?

However- In "response" to your - " . . . i really wonder how you guys goes about fixing this, is it any good way or is it only a pair of good ears and eyes?"

1 - Audio/Synch is one of my real "hates" - I can spot it a mile off
2 - Stand by your "feelings" - they're probably correct
3 - And this is my point - you haven't said this BUT! - You've got a SoFo tutorial - yeah? You think it is out of synch - yeah? Are you actually saying - but not asking - "Could SoFo put a piece of film/audio out to us in a tutorial that is, in itself, out of synch?" The quick answer is I don't know - have it checked out with SOFo - I'm sure they would love to hear from you - yeah?

Okay, Frank, we back in Synch now - ;-)

Grazie
Grazie wrote on 3/18/2003, 1:14 AM
Frank - I'm back - Try a freshly captured piece of DV. Plop it on your T/L and test your ears and eyes out on that. - Also Print to tape and check out if the final product chatches up with your expectations - I've too looked at some of my stuff in Preview and thought hmmmm .. . something wasn't correct with the Lip synch. But on Final PTT it was rock solid.
frank_jarle wrote on 3/18/2003, 3:53 AM
Grazie:

Hehe, my question was (it was hidden question, you didnt see it< are we out of sync?) If you do some video editing and you have this feeling that you could put the sound and video in a better sync how would you go about it.

1: As you might guess its my "hate" also
2: Well i dont doubt my feelings, they are correct, it is out of sync
3: Nono, the tutorial is perfect laid out, no problem there. In the tutorial im suppose to replace the bad sound (which i know is in sync) with a studio record, which is very good (if its out of sync i cannot tell).

So, i am suppose to trim away when the guy says "uhm eh" and also when he is coughing, still no problem. But...How to put this, say that you were suppose to do a voice over for yourself. Do you think that you are able to reproduce a 100% perfect voice over, that when you talk its align perfectly to the originale voice? I cannot thats for sure, lol. Even i did a close to perfect trim of the voice over and i try to align it to the originale voice i feel its out of sync by few ms, as in the mouth open and the sound comes a bit later. Oh man this is really hard to explain.

What i mean is....If i do a comparison between the originale and the voice over, it seems the voiceover is slightly longer/shorter. the words wont hit 100% compared to the originale.

Uhm, was this better?

Frankie
Singapore

frank_jarle wrote on 3/18/2003, 3:55 AM
Grazie: Ok thanks for your comment, i will have a look into what you said.

Its just that i was a bit worried that if i put together something or did a voice over i would like to know if the "lip-sync" is perfect, nothing looks more funny then to see a lip that is talking and then ou hear the voice later on/before the movement.

Frankie
Singapore
Grazie wrote on 3/18/2003, 6:50 AM
Thanks Marquat - You got it in one. I think all of us are now in Sync.

What's the project you'll be doing anway. Training and CUstomer service type videos is what I want to get into. If anybody wants a Project Leader for this type of work, drop me a line - yeah?

Grazie
mikkie wrote on 3/18/2003, 10:00 AM
FWIW, everyone thinks it's a pain, beside the shops that specialize in and make their living doing overdubs and such. ;?p

Sound designers can take just one sound from one word, say the *e* in the, and insert it into another word, or even use it as part of createing another word. But that's one reason they have sound designers, and as Marquat said: "Don't kill yourself..."

So anyway, yes it is possible to do a voiceover in sync, it is difficult, and it depends as much on the person speaking the voiceover as it does your skils putting everything together.

Probably the most useful, quick tool IMO is the ability in Vegas to time stretch/compress the audio track without altering the pitch much if any -> if you get the start right and by the middle it is out of sync, hold down the control key whilst dragging the end of the audio clip to speed things up or slow them down. You can do this for the full length audio clip, or split it into as many pieces as you need, using portions from the original and/or dubbed tracks to fill in any gaps as with ambient noise.
frank_jarle wrote on 3/21/2003, 6:25 AM
Oh man, thank you ALOT guys, to all of you of course, it have been a great discovery for me.

Because when i was doing the excercise,i knew i did everything correct, but when i was comparing the voiceover with the originale one, o notice in the senterpart it was a bit out of sync, but when i saw on the preview it looked ok, but by looking at the two voices i knew it was out of sync.

Again thank you alot, it really cleared up my mind :)

Frankie
Singapore