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Audio delay correction
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carlmart
Member
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6. September 2007 @ 18:24 |
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I have an avi file on which one of the audio tracks has at least one second delay with video. It may be more.
Which program can I use to correct that, if possible seeing it when I move the audio to and fro?
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AfterDawn Addict
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7. September 2007 @ 17:07 |
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From 'Mistycat'
Drag your file into the top window, highlight it and select "generate data".
In the lower window' highlight the audio and if anything other than 0 appears to the right, select "start" and in a minute or two you'll have a new file to use.
http://www.alexander-noe.com/video/amg/AVI-Mux_GUI-1.17.7.zip
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carlmart
Member
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8. September 2007 @ 03:24 |
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First of all let me correct my comment on the film: the audio is AHEAD of the video, not behind. Probably by a second or less.
Second is that this file has two audio tracks: audio 1 in Spanish and audio 2 in English. Audio 1 seems to be right, as long as a dubbed track could be. Audio 2 is running about 1 second ahead, and is the one I want to correct. I won't be using the dubbed track.
So I installed AVI Mux and did things as you explained. The program stated a 24ms delay on both tracks, which to start with is not really so. But I went ahead and let it work.
Audio 2 is still ahead of the video by 1 second.
This message has been edited since posting. Last time this message was edited on 8. September 2007 @ 03:28
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carlmart
Member
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8. September 2007 @ 03:44 |
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Another problem case. This is a recent file, lasting about 6 hours.
Until about 1.30 hours sync goes fine, then it starts going out of sync, until it gets more and ahead of the video.
So I went through AVI Mux with it. It didn't show any delay, but I went ahead with it anyway.
The new file keeps sync until 1h 29min, then... audio goes MUTE!
What may be happening and what can I do about it!
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AfterDawn Addict
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8. September 2007 @ 04:06 |
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Just to be clear, the original (pre AVI-Mux) has a consistent out of sync condition throughout or is it ok for 1.5 hrs then abruptly goes out of sync?
Was this a collection of files that have been joined or is the 1.5 hrs point unrelated.
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carlmart
Member
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8. September 2007 @ 04:36 |
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Originally posted by attar:
Just to be clear, the original (pre AVI-Mux) has a consistent out of sync condition throughout or is it ok for 1.5 hrs then abruptly goes out of sync?
It starts going out of sync after 1.5 hours, gradually, and it's more far apart at the end. Very strange.
Quote:
Was this a collection of files that have been joined or is the 1.5 hrs point unrelated.
Apparently it's a TV mini-series, though it was also screened as a two-part film in some countries.
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AfterDawn Addict
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8. September 2007 @ 04:55 |
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AfterDawn Addict
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19. September 2007 @ 20:58 |
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Originally posted by carlmart:
Another problem case. This is a recent file, lasting about 6 hours.
Until about 1.30 hours sync goes fine, then it starts going out of sync, until it gets more and ahead of the video.
So I went through AVI Mux with it. It didn't show any delay, but I went ahead with it anyway.
The new file keeps sync until 1h 29min, then... audio goes MUTE!
What may be happening and what can I do about it!
Could be caused by file corruption at that point or badly joined files.
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carlmart
Member
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20. September 2007 @ 03:04 |
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Originally posted by MysticE:
Could be caused by file corruption at that point or badly joined files.
Quite likely the latter. I could get another file that was fine.
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