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audio and video synchronization
bernard54 [Avatar]
Newbie Joined: Sep 26, 2010 06:11 Messages: 3 Offline
[Post New] Sep 26, 2010 06:28
Hello

(I'm newbie in video capture/editing.)

I'm using a device to connect my old analog video recorder JVC GR-AX62S to my PC Acer Aspire M1610
Core2 duo E4500 2.2GHz, Ram 3071Mo running on Vista verison Familiale Premium, via a USB 2.0 port

Installing the device, drivers and PD7.0 were successfull
My problem is :
I captured a short piece of tape as a test (1 minute)
Audio sound is ok, but not synchronized with the video.
Can somebody help me in synchronizing audio and video ?

Please use easy English language as I am not very familiar with English language
Thanks !
-----------------------------
Meme chose en francais:
Mon vieux camescope analogique JVC est connecté à l'ordinateur via un port USB 2.0
J'ai capturé une portion de video (1 minute) comme test.
Dès le début, le son est ok mais pas synchro avec la vidéo
Quelqu'un peut-il m'aider à synchroniser le tout ?

D'avance merci !
Trevor George
Member Location: Bristol, UK. Joined: May 29, 2010 17:44 Messages: 80 Offline
[Post New] Sep 26, 2010 07:07
Which is ahead . . audio or video ?

By how many seconds, or how many frames ?

Is it a constant difference ?

Are you able to "lose" any of the video or audio at the beginning, or is it all important ?

If the audio is ahead by a little amount, you could "lock" the audio track, and either add a few frames to the beginning of the video track, or slow down the first few frames of the video track, which will make that part longer to catch up with the audio, or vice versa.

Sometimes you just experiment and see how looks

I hope the "English" was easily understood

This message was edited 2 times. Last update was at Sep 26. 2010 07:39

Trevor . . My YouTube site . . (Bristol, UK) . . My JVC GZ-HM1 Camcorder
bernard54 [Avatar]
Newbie Joined: Sep 26, 2010 06:11 Messages: 3 Offline
[Post New] Sep 26, 2010 07:43
Thanks Trevor for giving your attention to my problem !

Sound is all right and is ahead... so I would rather say that video is late.
It's hard to tell how many seconds and wether the difference is constant or not...

So I'll try to make a new record (of my pc clock) and capture it and so I'll be able to reply to your questions.
I'll tell you

Have to charge the battery now cause it doesn't last much. The recorder didn't work for years !

Thanks again !
Trevor George
Member Location: Bristol, UK. Joined: May 29, 2010 17:44 Messages: 80 Offline
[Post New] Sep 26, 2010 07:48
I've added some more information to my first message : Trevor . . My YouTube site . . (Bristol, UK) . . My JVC GZ-HM1 Camcorder
bernard54 [Avatar]
Newbie Joined: Sep 26, 2010 06:11 Messages: 3 Offline
[Post New] Sep 30, 2010 09:43
Well it seems that I am a little bit silly...

"unsynchronization" occurs only during the video capture and the video playback with PD.
mpg played with external viewer seems to be ok

So I apologize for your time wasting for my pseudo-problem question...

Nevertheless, a 20 minutes video takes more than 4.3 Go on DVD rendering and that's very huge !
and I don't find how to shrink it.

In fact the size becomes huge at the end of the "Produce" stage...
Did I make something wrong ?

Thanks in advance
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