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stoncada
Locking Audio with Video
on Jul 24, 2007 at 11:41:47 am

This may be an odd one. I have edited a piece for a customer that they want to compress to a .wmv but they need to be sure that nobody can separate the audio from the video. It is a very sensitive piece that could be altered by someone to propagate their own agenda. They want to keep this from happening. Any suggestions?


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Richard Martz
Re: Locking Audio with Video
on Jul 24, 2007 at 2:02:46 pm

Isn't that what a copyright is for?

Also you could put this on a site that has limited access through password protection.

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walter biscardi
Re: Locking Audio with Video
on Jul 24, 2007 at 2:28:55 pm

[stoncada] "This may be an odd one. I have edited a piece for a customer that they want to compress to a .wmv but they need to be sure that nobody can separate the audio from the video. It is a very sensitive piece that could be altered by someone to propagate their own agenda. They want to keep this from happening. Any suggestions?"

The video can be easily converted to a Quicktime for editing in any Mac based editor or even brought into something as simple as Windows Movie Maker to edit.

I believe Flash is a difficult thing to edit from and you can also block people from having access to downloading the video. You'll have to talk to a webmaster about doing this.

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phosphene
Re: Locking Audio with Video
on Jul 25, 2007 at 6:05:01 am

If you compress the video into MPEG 1 , the audio and video will be muxed into 1 track. Although,anything can be reverse engineered if somebody tries hard enough.


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Michael G
Re: Locking Audio with Video
on Jul 25, 2007 at 7:13:24 am


If you can hear the sound then it can be recorded. For example, the output of my Win Media Player comes out my sound card as an SPDIF signal. I can re-record that on an external recording device.

I also have a variety of free downloadable software like Goldwave that will demux audio from QT and other video wrappers.

In short, no you can't stop someone with access to the internet from finding a way to separate the audio from the video.


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