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How can I insert audio x seconds into a video?

Suppose it's an mp3 audio file with an mp4 or avi video?

Different solutions are welcome.

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Do you have any existing encoding/transcoding/multiplexing software currently installed? Are you looking to do it via command line or is a GUI non-linear editor an option? –  Uninspired Jun 3 '11 at 0:16
    
@Uninspired I like the command line. I have ffmpeg and avidemux, i'm interested in others.. I have videodub. I am not that fmailiar with them. I don't know how to do it in them. Whatever solutions you know of.. the more the better though don't put too much of your time into it! but deserving of +++ for more. –  barlop Jun 3 '11 at 0:26
    
@Uninspired What tools do you know that you think are good at doing it? –  barlop Jun 3 '11 at 1:05

1 Answer 1

up vote 1 down vote accepted

Avidemux is able to use external audio track from MP3, AC3 or WAV. Just open your video, select Copy for Video in the left settings tab and then go to main menu Audio/Main track and you will get dialog Main audio track and choose for Audio: External MP3 instead of default setting Video. Then simply save your video.

This solution has one limitation (as I know) - the new audio replaces your original audio track and always starts with the video. So if you need to combine your MP3 with the video sound, then save your audio track from Avidemux, use Audacity to cut and combine it with your MP3 files and finally import it back to video using Avidemux again.

If you prefer more user friendly approach, then use some more advanced editor - maybe Pinnacle Studio (have to pay for it, and it needs to recompress your video before saving) or on linux something like Kdenlive, Open Movie Editor etc. (these are free and have similar use as Pinnacle).

good luck :-)

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i'm not on linux. but anyhow.. , How do you make the audio x seconds in? you say "then save your audio track from Avidemux, use Audacity to cut and combine it with your MP3 files and finally import it back to video using Avidemux again." so you are saying extract the audio with avidemux. but then how do I put it x seconds into the video? –  barlop Jun 3 '11 at 7:22
    
oh, I see what you're saying.. but cutting it then doing that then joining it,it's a bit open to issues and i'd rather have a tool that can do it in one. –  barlop Jun 4 '11 at 16:37
    
could be your suggestion is normal way.. –  barlop Jun 6 '11 at 0:06
    
Ok, then use Pinnacle Studio or the free Pinnacle VideoSpin. During the 14days trial period (only for mpeg2/4 import/export filters) you would be able to solve your task relatively easily. But as I say, you will have to re-encode the video to get AVI or MP4 again. –  Juhele Jun 6 '11 at 8:43

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