Hi Thomas--
Looks/sounds good here on OS X 10.4.8/QT7.1.3/FireFox.
To address Windows/PC quirks, you might want to try the H.263 codec
(an older mp4 variant). The IMA:4 soundtrack should be a go.
QT movie compatibility haunts me daily as the students working on PC
and Mac post all of their video and sound work on-line. 19 months
ago, we ran a series of tests with students and everyone we knew who
would try out formats on many platform/OS/Browser/Plug-in variations.
We found that the most compatible QT-based format to be H.263. I have
read it is the only mp4 movie codec accepted by MS, Apple and others.
Its not quite as pretty as H.264 or Windows Movies, but unlike these
codecs, the H.263 codec is in most plug-ins/browsers for PC and Mac
browsers going back to Windows98ME. As you are probably aware, some
MS/PC browsers will not play Apple's default mpg sound format for
H.263. Like you, we found the IMA:4 to be the best, fully-compatible
compromise. (Its the same "compressed" format I use in my QT movie
tests. It helps quality if the saturation is high.)
In case anyone is interested, here are the settings we use to make
these H.263 web compatible movies using freeware:
http://tinyurl.com/3xgh53
You may be able to lower the frame rate. The "Sorenson" codec tested
pretty well too with IMA:4 sound.
BTW, QT 7.1.5 (the Mac plug at least) seems to have some bugs with
mp4 movies,.. Our labs are sticking with 7.1.3 and there seem to be
fewer issues than folks in the class who have v7.1.5. Rob D.
At 10:10 AM -0600 4/30/07, Thomas Ashcraft wrote:
>http://wwknapp.home.mindspring.com/SparkXLScreenSnapz001.mov
>
>
>Hi again Walt,
>
>Just as a follow-up on the issue of your spectrogram/sonogram .mov file
>playing on a pc.
>
>I played the spectrogram on a Mac and it played perfectly. Excellent
>video and beautiful in its look and sound!
>
>Regarding pc playback: I upgraded my Quicktime to the latest v. 7.1.5
>and dumped the old copy of the .mov file from the cache and the movie
>still plays back crooked. I then tested playback on a different pc and
>got a different kind of glitch.
>
>I am wondering if someone on the list with a pc could try playback of
>that particular movie and report if it plays successfully or not? That
>would be really helpful and I am thanking you in advance.
>
>Thomas
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>"Microphones are not ears,
>Loudspeakers are not birds,
>A listening room is not nature."
>Klas Strandberg
>Yahoo! Groups Links
>
>
>
--
Rob Danielson
Peck School of the Arts
Department of Film
University of Wisconsin- Milwaukee
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