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Latest QuickTIme for Web Compression Formula?
I’m posting a one-minute QT video to my web site, and would like to know a formula from someone who has seen very good results. I’ve been compressing in QT 7.1.5, using Sorensen 3, at 15 fps, “Low ” quality with keyframes every 30fps, at 320 X 240, with audio in MPEG 4, Mono, at 44.1 kHz, 16-bit. But this is a two-and-a-half years old. Is there something better people have been using? Thanks. – Rob
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4 Replies
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Use Quicktime Pro to export a quicktime movie. Use the H.264 codec for video and AAC for audio. You can play with the size, frame-rate, and compression amount for both of those things to see what makes you happy.
This will require Quicktime 7 to view. If you know who you’re sending it to, this is fine. If it’s just going on a website for the public to view you may want to do this as your main video but also offer something else for viewers who don’t have quicktime.
But I find that many people have quicktime 7 now since they tend to download it along with iTunes.
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Hi Rob,
I agree with Jeff. The H264 is amazing. The presets in Compressor are OK. Use the one that can fits you.
Just one recommendation: Deinterlace before the conversion.
cheers,
rafael -
What they said! To expand on Jeff’s comments though, QT *is* on more PCs than ever,
but we run into problems with corporate clients when their IT departments don’t allow
people to install anything on their PCs. So, for most uses, we provide a WMV9 and a QT.
For the reason mentioned by Jeff, we don’t normally do h.264 (but it does look very good)
because not everyone has QT7 yet. We do an MP4 QT.
We also used to go no higher than 300kbs to accommodate slower DSL (384kbs) connections, but now we do 500kbs as the slowest bandwidth version. Depending on the use, we do 320×240, 384×288, or 480×360, sometimes at 15fps, sometimes at 29.97.
For audio, it depends on what it is, dialogue-only we do mono at 40kbs, music or higher end narration we do stereo at 64kbs or higher. AAC is a good way to go these days (or WM9 audio for WMVs).
HTH,
Ed -
If you want to be totally compatible so that all PC dorks on the corporate end can view your stuff you need to use MPG1. It looks horrible.
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