Magic Bullet help at DVinfo.net

Walter Chang · September 17th, 2003, 08:49 PM

Hey guys,

I just started using MB a few days ago, and I followed the manual in converting to 24p. The footage looks great on the AFx comp window but when i render it out, the footage shows horizontal lines. THe clip I'm using has motion, with the person walking back and forth.

I follow the instructions through the manual and I render with lower fields first, 3:2 pulldown, and the WWSSW. THen I just render with Microsoft DV.

I also checked the original captured footage through Windows Media Player, and it also displayed the same conditions. I don't recall this happening before though. I'm really lost at this point. Any help would be greatly appreciated.
Thanks.

Graeme Nattress · September 18th, 2003, 04:58 AM

The rendered version should show horizontal interlace lines. This is because of the 3:2 pulldown you're applying. the WWSSW is for Whole and Split. You should see two whole frames (no interlace lines) two split frames (with interlace effects) and another whole frame in sequence.

Play it back on your TV and it will look fine though. This is all perfectly correct and normal. It's all part of changing 24fps to 60i NTSC video.

Eric MacIver · October 5th, 2003, 03:21 PM

Do you have any idea how to render it so that the interlaced lines don't show up when played back on a computer monitor (for streaming internet video)?

While, of course getting the benefit of 24fps looking/converted footage?

Thanks

Graeme Nattress · October 5th, 2003, 03:26 PM

Magic Bullet just creates a 24p composition from 60i video. After Effects does the 3:2 pulldown. If you tell it to output the 24p video as 24 fps, you'll get no interlacing.

Eric MacIver · October 5th, 2003, 07:03 PM

The only issue with that, is that the audio either doesn't match up (if you import it afterwords) or is at a higher pitch because it is sped up to match the 24 FPS. So, to get it to sound better, you need to go back to 29.97, how the source was taken.

What do you think the best way to do that would be?

Thanks for your help.

Eric MacIver · October 6th, 2003, 07:31 PM

Sorry - I was wrong on that last post. Obviously if I just output it at 23.976 FPS with Field Rendering OFF, it plays fine on my computer.

Will be testing the NTSC output soon.

Thanks for the info.

September 17th, 2003, 08:49 PM	#1
Walter Chang New Boot Join Date: May 2003 Location: Lake Hiawatha NJ Posts: 10	Magic Bullet help Hey guys, I just started using MB a few days ago, and I followed the manual in converting to 24p. The footage looks great on the AFx comp window but when i render it out, the footage shows horizontal lines. THe clip I'm using has motion, with the person walking back and forth. I follow the instructions through the manual and I render with lower fields first, 3:2 pulldown, and the WWSSW. THen I just render with Microsoft DV. I also checked the original captured footage through Windows Media Player, and it also displayed the same conditions. I don't recall this happening before though. I'm really lost at this point. Any help would be greatly appreciated. Thanks.

September 18th, 2003, 04:58 AM	#2
Graeme Nattress RED Problem Solver Join Date: Sep 2003 Location: Ottawa, Canada Posts: 1,365	The rendered version should show horizontal interlace lines. This is because of the 3:2 pulldown you're applying. the WWSSW is for Whole and Split. You should see two whole frames (no interlace lines) two split frames (with interlace effects) and another whole frame in sequence. Play it back on your TV and it will look fine though. This is all perfectly correct and normal. It's all part of changing 24fps to 60i NTSC video. __________________ www.nattress.com - filters for FCP

October 5th, 2003, 03:21 PM	#3
Eric MacIver Regular Crew Join Date: Sep 2003 Location: Los Angeles, CA Posts: 121	Did you try that out? Do you have any idea how to render it so that the interlaced lines don't show up when played back on a computer monitor (for streaming internet video)? While, of course getting the benefit of 24fps looking/converted footage? Thanks

October 5th, 2003, 03:26 PM	#4
Graeme Nattress RED Problem Solver Join Date: Sep 2003 Location: Ottawa, Canada Posts: 1,365	Magic Bullet just creates a 24p composition from 60i video. After Effects does the 3:2 pulldown. If you tell it to output the 24p video as 24 fps, you'll get no interlacing. __________________ www.nattress.com - filters for FCP

October 5th, 2003, 07:03 PM	#5
Eric MacIver Regular Crew Join Date: Sep 2003 Location: Los Angeles, CA Posts: 121	Audio The only issue with that, is that the audio either doesn't match up (if you import it afterwords) or is at a higher pitch because it is sped up to match the 24 FPS. So, to get it to sound better, you need to go back to 29.97, how the source was taken. What do you think the best way to do that would be? Thanks for your help.

October 6th, 2003, 07:31 PM	#6
Eric MacIver Regular Crew Join Date: Sep 2003 Location: Los Angeles, CA Posts: 121	OOPS Sorry - I was wrong on that last post. Obviously if I just output it at 23.976 FPS with Field Rendering OFF, it plays fine on my computer. Will be testing the NTSC output soon. Thanks for the info.