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How To Replace Audio Without Re-Compressing Video???

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jon swanson
How To Replace Audio Without Re-Compressing Video???
on May 26, 2010 at 9:12:32 am

I have a .mov clip that needs the audio replaced
I would like to do this without re-compressing the video
Is there any way to do this without losing video quality
If anyone could help that would be awesome
Thank you very much


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Rafael Amador
Re: How To Replace Audio Without Re-Compressing Video???
on May 26, 2010 at 11:15:26 am

Hi Jon,
If the audio of the clip is PCM, you won't have any problem to do it in FC.
Just need that the sequence match the clip setting so you can export without re-compression.
rafael

http://www.nagavideo.com


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Mark Spano
Re: How To Replace Audio Without Re-Compressing Video???
on May 26, 2010 at 4:22:06 pm

Easier still - you can use Quicktime Pro. Open both the audio and video into QT. Show Movie Properties on the video, highlight the audio track and click Delete. Switch to the audio and select all, copy. Then go to the video, park the play head on the correct in point and under Edit, choose Add to Movie. Check sync and such, then Save As (flattened movie).



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jon swanson
Re: How To Replace Audio Without Re-Compressing Video???
on May 26, 2010 at 6:43:55 pm

Awesome, this is the answer i was looking for.
Do they make quicktime pro for snow leopard?
I used to have it but when i upgraded to snow leopard there is no place to put my product registration number
I can't find movie properties on the regular version


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Mark Spano
Re: How To Replace Audio Without Re-Compressing Video???
on May 27, 2010 at 2:35:45 am

[jon swanson] "Do they make quicktime pro for snow leopard?"

When I upgraded, I was able to keep my Quicktime Pro 7 - you may have it in your Applications > Utilities folder. If it's not there, I think you can just load your upgrade disc and choose to install Quicktime Pro 7.



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Winnie Cheung
Re: How To Replace Audio Without Re-Compressing Video???
on Nov 15, 2010 at 3:25:34 pm

This was the perfect solution. Thank you so much for posting! I'm so glad I didn't have to go through any unnecessary compressing.


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john munro
Re: How To Replace Audio Without Re-Compressing Video???
on Oct 8, 2011 at 3:22:21 pm

Just joined specifically to say Thank you so much man.
You really saved my bacon with that advice!

cheers


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Kevin Reiner
Re: How To Replace Audio Without Re-Compressing Video???
on May 25, 2012 at 1:00:00 pm

Just saved my butt a lot of time as well. Thanks. Never knew about the "add to" feature.

Mac Pro 2 x 3 GHz 6-Core Intel Xeon
32GB Memory
Dual-channel 4Gb Fibre Channel PCI Express card
Dell Display (23" flat panel)
ATI Radeon HD 5770
AJA Kona LSi SD/HD capture card
Rourke 16 TB
Flanders 2460

SOFTWARE
Mac OS X 10.6.5
FCP 7
After Effects CS5
Boris Continuum
Sapphire Plug Ins
All Trapcode Plugs
Zaxwerks Invig


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kevin nations
Re: How To Replace Audio Without Re-Compressing Video???
on Jun 12, 2014 at 9:38:06 pm

I wonder if this is actually working for me. I opened my 88 minute pro rez file in QT Pro, replaced the audio, now I am 'save as'ing to a different name. Does it sound right that it's taking 1 hour to save? Is it re-encoding? Because that would be bad.


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Mark Spano
Re: How To Replace Audio Without Re-Compressing Video???
on Jun 13, 2014 at 2:56:21 am

Sounds right, considering how large the file is. Maybe you have slow disks? Better to save to a different disk than the one where your sources are, to ensure fastest save. It's basically taking however long a file copy would take, considering it is copying the essences from two files (video and audio) into a new QT. It is not recompressing (as long you did not choose EXPORT and instead chose SAVE AS SELF CONTAINED).



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kevin nations
Re: How To Replace Audio Without Re-Compressing Video???
on Jun 13, 2014 at 3:01:29 am

Yep! It took a while, but it did indeed work. Looked great too. Thanks all for the tip. Saved me lots of time.


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Rory Delaney
Re: How To Replace Audio Without Re-Compressing Video???
on Dec 11, 2014 at 5:15:45 pm

Hey folks, i am trying to marry some dolby surround sound audio with a prores video. I added the 7 tracks of audio without a problem using Quicktime Pro but when i click Save As the file size goes from 130 gigs to like 110 gigs because it reduces the video dimensions from 1920 x 1080 to 960 x 540. Any clue what might be going wrong? I need to keep the dimensions at 1920 x 1080. Thanks!


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