Adding vocals in a video.

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angelx03
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Adding vocals in a video.

Post by angelx03 » Wed Feb 22, 2006 12:05 am

Somewhere in the future, I might do another anime trailer, but this time I plan to implement the original vocals from the DVD source I'm using. It may be a silly question, but which of these scenarios would be easier to do?

1.) I edit the audio accordingly with the original vocals in place. Then I edit the video and attempt to sync the vocals with the original video.

...or

2.) I edit the audio accordingly without the vocals, and then edit the video. After I export the video, I demux the audio and load the audio into an audio editor program. Then I attempt to place the vocals into the audio and get it to sync with the original video scene.
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Keeper of Hellfire
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Post by Keeper of Hellfire » Wed Feb 22, 2006 8:30 am

I assume that you use WMM or another NLE with only one audio track. Than imho is 1) the better otpion. But wait, you plan to use the clips with the original audio? Than why not doing so? Even WMM allows you to import the footage with audio and has an audio track for the music.

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angelx03
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Post by angelx03 » Wed Feb 22, 2006 8:51 am

I might need to tweak the original audio mainly just to "seperate" it from the original background music.
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gangstaj8
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Post by gangstaj8 » Wed Feb 22, 2006 2:45 pm

Interesting dilema. Do I understand correctly that you're trying to isolate the vocals (people talking) from the background music and noises of a movie, then put those vocals into a different music source? And wether to do that before or after you edit your video together? IMO, getting the audio to sound right would be the first step. After that the video editing should fall into place fairly easily, syncing video to it's original audio shouldn't be too tough at all.

If this audio is coming from a DVD with surround sound, pulling the audio from the center speaker channel, where the majority of speech is confined, should obviously make your job easier too. That is, if I'm understanding you correctly. But I haven't actually played around with demuxing and such from DVD's, so can't help you there. Good luck though.
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angelx03
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Post by angelx03 » Thu Feb 23, 2006 7:32 am

You basically nailed it! Looks like I'll prepare the trailer audio first. :D

Ok, here's a follow-up question. The vocal audio is in a 5.1 Dolby Digital format. Are you saying, theoretically, I could easily seperate the vocals and sound effects from the original BGM (or at least get close to it)?
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Keeper of Hellfire
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Post by Keeper of Hellfire » Thu Feb 23, 2006 8:24 am

I wouldn't generalize it, it depends. I have played around a little with the 5.1 audio of the German Noir releases, to get the BGM that isn't on the OST. The Japanese audio track had sound effects on left and right front, the left front had in additon BGM, but only some rare pieces of vocals. The right front had in additon all vocals, but nearly no BGM. So I had only to mute the right front to get the BGM, of course with sound effects, and very seldom some vocal lines. To get the vocals with sound effects, but without BGM, I had to export right front only. The German dub had a stronger mix between left and right. This way a seperation had been much harder, if not impossible.

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