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MPEG-1, mp4 for web and/or YouTube?

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Jay Beech
MPEG-1, mp4 for web and/or YouTube?
on Nov 9, 2011 at 5:43:25 pm

Newbie. I thought that mp4 was supposed to be superior to MPEG-1 for the web. However, I exported two versions of the same FCP file using Compressor and I'm a little surprised by what I got.

Both are 320x240 at 29.97fps. I think I used the IMA 4:1 audio option for the MPEG-1 audio and the mp4 is AAC (by default?). The MPEG-1 is 90mb and the mp4 is 108mb.

MPEG-1 seems a little sharper and the audio is both hotter and contains more hi frequency content. Both look like sh*t on YouTube. It's not like the footage was that great to begin with, but the loss of quality is still disappointing. Seems like there are a few advantages to using YT, though, including mobile delivery.

I'd sure appreciate any guidance, tips, tricks, links that you're willing to share. Thanks.


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Rafael Amador
Re: MPEG-1, mp4 for web and/or YouTube?
on Nov 11, 2011 at 9:20:16 am

[Jay Beech] "The MPEG-1 is 90mb and the mp4 is 108mb."
That you mean the audio, don't you?
Standard MPG- has a data-rate of around 1.2 Mbps (audio&Video).
At that data-rate a 320x240 MP4/H264 should look as good as the original.
You are doing something wrong somewhere or using a wrong Preset.
rafael

http://www.nagavideo.com


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