Audio Track Longer Than Video

I exported an AIFF (from FCP) to Audacity and made some minor tweaks (removed a scratch and applied fades) - imported it back into FCP to ensure there was no length-difference between the AV.
Using the AIFF or AC3 (from Compressor), the audio ends up longer than the video in DVD Studio Pro.
I've seen reports of Compressor getting the blame, but it must be something else if it's happening to the AIFF too.
Any ideas please? I'm using Final Cut Studio 4.

DVDSP doesn't correct it - the issue is more of a visual problem with the timeline than an actual 'gap' as such. However, it is very important to check it thoroughly!
I have had plenty of issues where the graphics line up perfectly but the audio is out of sync - zooming in on the timeline shows small differences in the lengths, but correcting it means making larger changes... and also situations where there are obvious differences on the timeline, but zooming in and simply moving the bars to either one end or the other of the video clip results in perfect sync.
The purist's approach would be to re-encode. It isn't always necessary, but be very careful... check, check and check it again.

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How do I seperate the audio track from the video and save it to a CD in Premiere Elements 13?

How do I seperate the audio track from the video and save it to a CD in Premiere Elements 13?

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If you need information on selective export of Timeline content when dealing with more than just this one file on the Timeline, please let us know. If you are trying to produce a CD for listening in car or CD player elsewhere, please let us know.
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Audio is 1 frame longer than video after encode

My .ac3 files are coming up 1 frame longer than they should be on SOME encodes. Unfortunately, I can't see any noticeable pattern to which files it happens to. It occurs on anything from audio-only files created in Soundtrack to an FCP video/audio export. It's happened on both a DV sequence as well as a DVCPRO HD sequence. It's a bit unnerving to see the audio longer than the video, even if it is one frame because the end product is slightly (1 frame, I'd reckon) out of sync. I've tried setting a specific out point in my sequence and got the same effect.
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Anyone else having their audio come up 1 frame too long on a Dolby encode?
Yes.
The rest is longwinded with no answer to the problem.
First the system config.
Dual 1.8 GHz PCI-X G5
4 GB Ram
Media drive: 800 GB Raid FW 800
(4 discs, 2 on internal bus, 2 on LaCie FW 800 card)
162 MB/s Read, 91 MB/s Write.
FCP 5.1.2
Compressor 2.3
DVD SP 4.1.1
I created a 16 minute NTSC DVC PRO50 sequence, audio at 48KHz 16 bit.
Not having a person recorded talking for that length of time I created a series of one frame "pops" of color bars and tone, followed by 10 seconds of video and audio slug.
This sequence was copied and pasted to fill the timeline with a single frame of the "pop" at the very end.
Everything perfectly in sync.
I nested the sequence and rendered.
No matter how the 16 minute timeline was exported and compressed to MPEG-2, 7 Mb/s and Dolby 2.0 192 Kb/s.
(direct export to Compressor, export of audio and video separately or sequence export, then to Compressor)
there was always an audio sync error once imported to the DVD SP timeline.
Not an entire frame out, but on zooming to max in the timeline in SP, about 7/8 of a frame extra.
If I exported just the last 1:21 min of the NTSC DVC PRO50 timeline, and compressed with the same settings, the extra audio length was about 3/4 of a frame over.
Next I exported the NTSC DVC PRO50 timeline as a DVCPRO HD100 1080 60i QT sequence.
Cut the last 1:21 min and imported to Compressor.
Compressed as 19 MB/s MPEG-2 and Dolby 2.0 192 Kb/s.
Created a new DVD SP HD project and brought the files into the timeline.
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Recording through the Mac Audio Tracks rather than through the Mic.

I figured this would be very handy since I'm just recording the sound from a YouTube video, I don't want to have to use the mic to record the sound, If it's possible to save the Mac Audio Tracks, which is basically anything that comes out of the speaker, to a file to be used by Garageband later? Or is there a way to record, not through the mic, but using the Mac Audio Track through Garageband? It would help because I realized when I recorded through the mic that I had to worry about everyone around me being quite for a few seconds only to realize that the fan was running full boar which made the quality terrible. Just looking for an alternative. Maybe a program that records the Mac Audio Tracks? Sorry for the long-winded post.

I know a way around this as I had the same problem once. I bought a small lead with stereo mini jack to stereo mini jack which enabled me to connect the headphones socket to the line/mic in socket. This means that any sound your computer makes can be recorded directly using any recording application, including Garageband. No fear of extraneous noise as it is a direct connection not microphone. There may well be a purely 'software' method also but I can confirm that this does work anyway.

Why would an audio track cause a video glitch?

I have a 1080 60p clip with no audio. If I create a sequence based on that clip, add a wav file to an audio track, then export using the H.264 60p custom preset with audio multiplexing to an .m2t everything looks fine.    However, if I export using the H.264 Blu-ray preset, 720p, 59.94, multiplexed, to an .m2t file the video has some stutters towards the end.   If I remove the audio track and do the same export, still muxed, the video is fine in 720p.   I get the same result if I start with a 720p sequence (i.e. addition of audio causes video glitch).
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Edit: importing the muxed 60p export with audio, then exporting as noted in 720p has the same issue.
Comments?   Let me know if what I'm describing isn't clear.

Hi Jim - understood in an ideal world one would have source video footage, sequence, and output target all the same. Is it not common though for folks to have situations where there is more than one target output?
Anyway, I think I have a tree covering both roads if I understand your analogy. What is wrong with the following picture? I took the original 1080 60p clip, dragged it into a 720p 59.94 sequence, exported the video only. The exported video looks just fine in this case. I even tried different formats (Matrox MPEG I-Frame HD, H.264 Blu-ray muxed and not). It is all good.
Next I imported the aformentioned no issue video that is in 720 59.94 into a sequence that matches then exported to a matching format.   No issue with the resultant video.   Is this scenario not what you mentioned?   Start with video that matches the sequence and target output?
However, if I add an audio track, the video has some flashing/stuttering at the end particularly towards the top.   Why would exporting with or without an audio track in the above scenario make a difference?
In case it matters, the video came from a modified After Effects template. I don't own AE and paid another guy to modify the template. I will go back and ask him to render in 720p 59.94. Still, the above just doesn't seem right.

2 Audio tracks on one video?

Hello,
I have two videos that are the close to the same...and are pretty close in length.
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Here's one way:
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You will have a menu that will select the audio track. See help:
http://help.adobe.com/en_US/encore/cs/using/WSbaf9cd7d26a2eabfe8074010 38582db29-7e8ca.html

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You can conform the video material to 25fps using cinematools.
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Interlacing an audio track with a video track

hey all...
wodnering how i would go about
interlacing an audio track
over like a 4 minute video track.
i've tried copy the audio in another QT window and pasting it in the video window, but it always ends up the video track without audio for 0 to 4 minutes, then the video is over a plain white visual with the audio playing for minutes 5 to 9.
wondering how to make each line up with teach other
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dave

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Can I open a second Source Monitor for the audio track of a video?

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Using CS6

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Hi Diaz,
Can you explain the exact scenario which you are looking for!!!
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I called the logic helpline but they were no good at all, if anything they were down right rude towards me so I wouldn't sugegst phoning them any time soon!
Anybody got any suggestions that'd be great as I am currently doing my university coursework and this is kinda vital!

Clang - you do come across as rude. If the person
wanted to read the manual - yep you guessed it - they
wouldve already done that. Telling users on here to
RTFM is useless, and is pointless as well. Forums are
all about helping each other, some people just want
to get their answers this way, and there's really
nothing wrong with that. Its the spirit of being
supportive - thats what this place is all about.
Please dont tell anyone else here to RTFM, that
doesnt work at all mate, and comes across as hostile.
I see a pattern evolving from the mist...you are afraid of the letters:
RTFM!!!
Now,ask yourself,how did your post telling some other guy off about the RTFM,help the OP?? In no way.That's how.I might be rude,I might have a sarastic sense of humour,but I never tell posters to not read the manual.It's there for a reason.Many trees died so that the manual could be there for them.At least respect those poor dead trees.
(More sense of humour...) :P
Cheers

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This is the audio export setting...
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Hi Stan, Here are two screenshots. One with the clip properties and the other with the meta data from Premiere. I hope this helps.
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Hi
And just to add to OT-s brilliant suggestions - really - Do a Save as a DiskImage ! IMPORTANT !
• When free space goes down on the Start-Up hard disk to 5Gb or less - strange things occurs - Yes even audio out of sync - to not working DVD at all.
I secure a minimum of 25Gb free space when using SD-video to iDVD - if HD material I would guess 4-5 times more as it has to be re-calculated into SD and this needs space.
DVD - is as standard SD-Video (as old time CRT-TVs) - even if You use DVD-Studio Pro or iDVD or Roxio Toast™ - That's what it is and using HD material doesn't improve a bit (may be even give a lesser result)
Yours Bengt W

Audio Track Longer Than Video

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