Downconvert using Matrox at DVinfo.net

Scott Holgate · October 29th, 2007, 05:32 PM

Hello Matrox uses,

Can anyone confirm the best way to down convert HDV to SD for DVD using the Matrox RT.X 2?

I have recently been importing the Matrox HDV .avi file into Virtual dud to resize it to 720 X 576 (Pal 16:9) and then encode to mpeg 2 using TMPGEnc. However I still get the jaggies! The colour and picture looks great however.

Anyone have a better solution?

Regards Scott.

Don Blish · October 29th, 2007, 09:27 PM

I use PremPro2+Access HD, not the tools you use have, but I have a suggestion. When I used the aforementioned to output standard [either NTSC 30i or PAL 25i], my 1080i Sony footage had very exact, three line deep, jaggies if there was ANY panning. I got wonderful results by outputting standard PROGRESSIVE footage. If you think about it, a single 1080i HDV field is 540 high and 1440 across, more than enough to make even a PAL 576x720 frame. In my case, the Cineform Access makes the .avi export to standard. I then use DVDit Pro HD to make both standard DVDs and Blu-Ray HD discs.

Scott Holgate · October 29th, 2007, 09:48 PM

Thanks for the reply Don. I will look into exporting standard progressive.

Mike McCarthy · October 29th, 2007, 10:28 PM

After a lot of testing, the best way I have found based on the Adobe products (RT.X2) is to export a native file and do the downsample in After Effects. Much better results, and you account for interlacing, and even add pulldown to 24p footage for DVD.

Scott Holgate · October 29th, 2007, 10:36 PM

So it look’s like investing in after effects is the best option? Not cheap when you consider having already paid for the Matrox hardware…

Thanks for your reply Mike

October 29th, 2007, 05:32 PM	#1
Scott Holgate New Boot Join Date: Oct 2007 Location: Australia Posts: 10	Downconvert using Matrox Hello Matrox uses, Can anyone confirm the best way to down convert HDV to SD for DVD using the Matrox RT.X 2? I have recently been importing the Matrox HDV .avi file into Virtual dud to resize it to 720 X 576 (Pal 16:9) and then encode to mpeg 2 using TMPGEnc. However I still get the jaggies! The colour and picture looks great however. Anyone have a better solution? Regards Scott.

October 29th, 2007, 09:27 PM	#2
Don Blish Major Player Join Date: Oct 2003 Location: Portland OR Posts: 227	I use PremPro2+Access HD, not the tools you use have, but I have a suggestion. When I used the aforementioned to output standard [either NTSC 30i or PAL 25i], my 1080i Sony footage had very exact, three line deep, jaggies if there was ANY panning. I got wonderful results by outputting standard PROGRESSIVE footage. If you think about it, a single 1080i HDV field is 540 high and 1440 across, more than enough to make even a PAL 576x720 frame. In my case, the Cineform Access makes the .avi export to standard. I then use DVDit Pro HD to make both standard DVDs and Blu-Ray HD discs. Last edited by Don Blish; October 30th, 2007 at 09:48 AM.

October 29th, 2007, 10:28 PM	#4
Mike McCarthy Major Player Join Date: Oct 2007 Location: Northern California Posts: 517	After a lot of testing, the best way I have found based on the Adobe products (RT.X2) is to export a native file and do the downsample in After Effects. Much better results, and you account for interlacing, and even add pulldown to 24p footage for DVD. __________________ For more information on these topics, check out my tech website at www.hd4pc.com

October 29th, 2007, 09:48 PM	#3
Scott Holgate New Boot Join Date: Oct 2007 Location: Australia Posts: 10	Thanks for the reply Don. I will look into exporting standard progressive.

October 29th, 2007, 10:36 PM	#5
Scott Holgate New Boot Join Date: Oct 2007 Location: Australia Posts: 10	So it look’s like investing in after effects is the best option? Not cheap when you consider having already paid for the Matrox hardware… Thanks for your reply Mike