Welcome to the most active Linux Forum on the web.
Go Back > Forums > Linux Forums > Linux - Software
User Name
Linux - Software This forum is for Software issues.
Having a problem installing a new program? Want to know which application is best for the job? Post your question in this forum.


  Search this Thread
Old 01-14-2009, 10:06 AM   #1
Registered: Jan 2009
Location: Isle of Lewis
Distribution: Gentoo, Crunchbang (XFCE)
Posts: 133
Blog Entries: 1

Rep: Reputation: 18
Q DVD Author: sound and video not in sync

I am hoping that somebody can help me here.

I have recently starting using Linux and I have found Q DVD Author to be an excellent program. However whenever I author a DVD the sound and the video are out of sync by a few seconds, this is not just out, but unwatchable.

I hope that somebody out there can help me,


PS the OS i'm using is Ubuntu 8.10
Old 01-14-2009, 12:20 PM   #2
Registered: Sep 2005
Location: UK
Distribution: Gentoo/Debian/Ubuntu
Posts: 308

Rep: Reputation: 39
Don't have QDVDAuthor do reauthoring of video files. Create MPeG PS (DVD files) using a tool like Avidemux or ffmpeg, then have QDVDauthor just build the DVD and sling it all together.
Old 01-14-2009, 05:57 PM   #3
Senior Member
Registered: Feb 2003
Distribution: debian
Posts: 4,137
Blog Entries: 1

Rep: Reputation: 874Reputation: 874Reputation: 874Reputation: 874Reputation: 874Reputation: 874Reputation: 874
Did you give it the right information for your setup / source files?

PAL - 25 fps
NTSC - 30 fps (29.97 or 30000/1001)

as opposed to NTSC TV at 60fps (interlaced, bottom field first) (60000/1001)

or NTSC Blueray at 24fps. And variants that are interlaced top field first.

and other options like old webcams at 1 fps to 5 fps, old adult training videos at 15 fps, yada yada yada. fps being frames per seconds (number of pictures over time). interlaced being updating only half the image at a time. Like two combs meshed together.

Sometimes interlaced footage is interpreted as progressive which makes the video play in halftime while maintaining the original audio that only lasts half as long. Sometimes 30fps gets interpreted as 25fps (ffmpeg default) and audio runs slightly fast to video. Or vice versa and vice versa.

I tend to render my videos in DVD format before authoring to a DVD. That way the authoring tool doesn't have to make assumptions and has less of a chance to make the wrong assumption. Or at least it makes the same wrong assumption for everything. Which makes it easier to identify what that assumption was in the first place.

$ ffmpeg -i source.format -sameq -target ntsc-dvd -y dvd_title_chapter.mpeg

Old 01-15-2009, 05:00 AM   #4
Registered: Jan 2009
Location: Isle of Lewis
Distribution: Gentoo, Crunchbang (XFCE)
Posts: 133

Original Poster
Blog Entries: 1

Rep: Reputation: 18
Thanks for the quick replies folks.

arckane: thanks for that tip, I was importing AVI files and cutting them into chapters using QDVDauthor so I will try it that way.

Shadow 7: I have all the settings for NTSC and PAL correct, it is not that the sound plays at a different rate, it just plays about 2 seconds after the video for the whole film. I will try to convert the files before authoring.


author, dvd, sound, video

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
DVD::RIP audio out of sync with video Stefan J Linux - Software 2 01-18-2008 04:04 PM
Ubuntu 7.04, sound in video is out of sync xmrkite Linux - Software 2 05-21-2007 03:29 PM
Sound and video out of sync petersum Linux - Software 8 10-05-2006 03:58 PM
Sound and Video are Out of Sync in SuSE 9.3 RAMMS+EIN Linux - Hardware 0 06-04-2005 12:00 PM
Sound out of sync with Video for movies Relativity Linux - Software 2 04-23-2004 06:44 AM > Forums > Linux Forums > Linux - Software

All times are GMT -5. The time now is 03:00 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration