In article <3DF3E7E9.D57DFA5E@no_spam.com> , Simon Lemieux 
<no_### [at] no_spamcom>  wrote:

>> You have to adjust the default settings.  This is much easier with the
>> advanced commercial version rather than the basic version that comes with
>> QuickTime for free.
>
> I'm not sure, but I think he has a commercial copy of it.  There is
> indeed some settings, like the bitrate, key frame, and fps.  But that's
> about it...

That is not the commercial version, that are the normal QuickTime settings
every Codec offers...

>> I am not sure what you what to say with this sentence and I don't use
>> iMovie, but if you just have problems using it, I suggest to export as DV in
>> iMovie and play with the compression in the Movie Player (aka QuickTime
>> player).
>
> Well, I meant that sound compression doesn't seem to keep a very good
> quality, the best bitrate is 48 kbit/s.  But I have to say it is enough
> for our needs.

We are talking about creating MEPG-4 with QuickTime 6, right?

> Exporting to DV and playing with the compression;  you mean QuickTime
> player can compress the DV better than iMovie? (iMovie uses quicktime to
> compress its movies)

No, the export is provided by iMovie is simply incomplete and does not even
allow you to export to anyothing but QuickTime.  In reality QuickTime allows
itself to export to different formats which have nothing to do with
QuickTime.  iMovie only allows you to export as QuickTime movie from its
internal DV format.  So you export in its native format, as QuickTime DV and
the process it in QuickTime Player.

So, open that movie in QuickTime Player.  You need QuickTime Pro (the US$30
registration thingy) for this, btw!

Now go to the menu File:Export.  The export window shows up.  Select "Movie
to MPEG-4".  Press the "Options..." button.  Now you see five tabs: General,
Video, Audio, Streaming, Compatibility.  If you know the other viewers will
have QuickTime you can ignore the settings in the Compatibility tab.  In the
Video tab, for the video track use "Improved" and for the audio track (in
the Audio tab) use "Music" as quality setting.

> As for audio, it can not
> be set higher than 48kbit/s.

Because you didn't create MPEG-4 movie, iMovie just lets you use MEPG-4
video compression but create plain MPEG-4 files.

If you have playback problems the reason is simple: MEPG-4 demands a lot of
resources.  A 800 MHz PowerMac G4 is the minimum for a half PAL site
(384*288) movbie.  Framesizes above 384*288 will only make sense if you use
MPEG-2.

> For a good quality movie, MPEG-1 would be much too big for my use, so I
> think my best option is to stay with MPEG-4 and play with the bitrate
> and keyframe settings until I get a good quality and good speed movie.

Well, with MPEG-1 you should have no problem fitting 17 minutes on 200 MB...

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org

Post a reply to this message