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Creating wavs from silent mpegs

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Alison Myers
Creating wavs from silent mpegs
on Dec 13, 2013 at 9:12:06 am

Hi guys,

I have about 50 silent mpegs that I need to create wavs for - each mpegs needs a wav with a matching length and name. The wavs need to be separate from the mpegs.

I've tried running the mpegs through FCP, Soundtrack Pro, Mpeg Streamclip, Audacity and Digital Rapids. No joy. If they do create a file, it's 0KB.

I could do this manually through FCP - cutting down wavs to the right length and exporting them - but as there are 50 to do, I'm kinda hoping there'll be an automated way.

Any suggestions? Please?

Thanks.


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Shane Ross
Re: Creating wavs from silent mpegs
on Dec 13, 2013 at 6:14:22 pm

WAV...that's an audio file, no? How can you make an audio file out of nothing? If the MPEGs are silent, there is no audio. Do you mean you are doing sound design in FCP, or soundtrack pro? Making sounds to match the picture?

Shane
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Mark Suszko
Re: Creating wavs from silent mpegs
on Dec 13, 2013 at 7:21:04 pm
Last Edited By Mark Suszko on Dec 13, 2013 at 7:21:21 pm

I'm guessing what they mean is, they want a null audio clip to associate with each video, so that when put on a timeline, they all line up similarly to other clips that did contain audio. But I really don't understand the question either.


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Alison Myers
Re: Creating wavs from silent mpegs
on Dec 13, 2013 at 9:36:33 pm

Hmm, just as I feared. Yeah, I need to create silent wav files to match the mpegs so I can then run the wavs through another piece of software to create a soundtrack for the mpegs. For this software to do its job, the wavs have to be the correct length.

It was a desperation, "Oh, crap, I've got 50 of these to do, there must be a better way," question.

Thanks.


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Mark Suszko
Re: Creating wavs from silent mpegs
on Dec 13, 2013 at 10:36:49 pm

Alison, what is this software you mention?


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Alison Myers
Re: Creating wavs from silent mpegs
on Dec 13, 2013 at 11:30:39 pm

It's specialist audio description mixing software - it automatically mixes the AD recordings with the base soundtrack. We're usually given soundtrack wavs or are able to generate silent wavs ourselves. It's just unfortunate that this job involves so many silent mpegs.


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Alison Myers
Re: Creating wavs from silent mpegs
on Dec 13, 2013 at 11:57:22 pm

I should probably add I'm also a freelance video editor. For this job I use FCP7 to check the mixed wavs against the videos and also to generate wavs if necessary, etc.


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