H Rob, ( Oryoki thank you too),
Thanks for doing these comparisons. They are tedious in their way but
very very useful.
Your hard work is much appreciated.
Thomas
Rob Danielson wrote:
> 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
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> "Microphones are not ears,
>> Loudspeakers are not birds,
>> A listening room is not nature."
>> Klas Strandberg
>> Yahoo! Groups Links
>>
>>
>>
>>
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>
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