Thread: making movies
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Old 02-24-2003, 11:57 PM   #7
Xayd
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You won't be able to capture with Premiere, the initial recording is gonna have to be done with the ATI software. After you've gotten an MPEG-2 file you can then edit it, though.

When you open up the ATI TV software, go to setup, digital VCR, "set custom". Select the "best quality" option and edit it.

720 x 480 is the standard NTSC TV full-screen resolution. Make sure you select MPEG-2 for the video rather than MPEG-1 in this screen.

Audio, stereo or mono is up to you, if you have stereo inputs and a stereo source, feel free to use it.

P frames and B frames and I frames. A good explanation of what they do is here in this article at Tom's...
http://www4.tomshardware.com/video/2...apture-02.html
A good setting to start with quality and size wise for the purposes of the ATI software is 4 P frames and 2 B frames per group/subgroup.

In the next page, you've got the option for variable bit rate, be sure and turn it on. That's the whole benefit of MPEG-2 over MPEG-1, you can use a variable bitrate (higher on high action scenes, lower on low action scenes) to reduce the size of the final video.

Motion estimation is a concept similar to prediction frames, in that the encoder can predict from scene to scene what most parts of the image should look like, seeing as only part of the image will be moving. The default setting of 75 is ok here.

That's about it, click finish.

Now you've got a custom set of settings to use, just set the ATI software to use the settings you just created and off you go. Hit record when you're ready to record in the main ATI TV window and stop when you're done.

The ATI software is gonna give you an MPEG-2 video and MPEG audio as a final product, so unless you need to edit the video further after capture, you could go straight to whatever authoring program you have at this point, assuming it can take the MP2 file and assuming that you have a file that's not over 4.36 gigs .

If your file is over 4.36 gigs, you can re-encode it with a lower bitrate to shrink the size of the final video (probably without much if any loss in noticable quality).

You'd need to look into an MPEG-2 encoder such as TMPGENC (http://www.tmpgenc.net) to do that with. You'd start with a program to separate the audio and video into seaprate files such as dvd2avi (http://www.divx-digest.com/software/dvd2avi.html ). But all of that would really be another topic for another post (i.e. a whole new can of worms ).
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