Vegas creates horizontal lines across my videos

[John Rofrano]

[Kevin Byrne] “I record video using a Hauppauge HD PVR and whenever I drag the clips I recorded into Sony Vegas 9.0 Pro, horizontal lines are created whenever the clip moves.”

Those lines are interlacing which is required for TV which is what the Hauppauge HD PVR is designed to record. You must deinterlace your footage before using it on a PC or the web by rendering as progressive.

What render settings did you use?

~jr

http://www.johnrofrano.com
http://www.vasst.com

[Kevin Byrne]

Hello John,
When I am ready to render the clip in Vegas, I use these settings:

Save Type As: Sony AVC

Video Format: AVC

Frame Size: High Definition (1280×720)

Profile: Bassline

Entropy Coding: CABAC

Frame Rate: 29.970 (NTSC)

Field Order: None (Progressive Scan)

Pixel Aspect Ratio: 1.0000

Bit Rate: 8,000,000

[Kevin Byrne]

Hello John,
When I am ready to render the clip in Vegas, I use these settings:

Save Type As: Sony AVC

Video Format: AVC

Frame Size: High Definition (1280×720)

Profile: Bassline

Entropy Coding: CABAC

Frame Rate: 29.970 (NTSC)

Field Order: None (Progressive Scan)

Pixel Aspect Ratio: 1.0000

Bit Rate: 8,000,000

[John Rofrano]

What are your project properties? Specifically, what Deinterlace method are you using in the project properties?

~jr

http://www.johnrofrano.com
http://www.vasst.com

[Kevin Byrne]

interpolate fields

[Danny Hays]

Are you setting the project settings to progressive, with interpolate fields as well? This always gets rid of my interlacing, even in the Vegas preview window. That is strange. If you post an unedited clip to Vimeo, we can download it in the same format you uploaded it for a few day without a Vimeo premium account, this will allow us to test your files and see what’s happening here.

[John Rofrano]

Yea very strange. Interpolate Fields with Progressive Render throws half of the vertical resolution away so there should be no interlacing at all. Maybe it’s not an interlacing problem?

~jr

http://www.johnrofrano.com
http://www.vasst.com

[Kevin Byrne]

I uploaded a sample clip here:

https://www.vimeo.com/19014712

with the render settings of:
Deinterlace Method: Interpolate Fields

Video Format: AVC
Frame Size: 1280 x 720
Do not allow source to adjust frame size
Profile: Baseline
Entropy Coding: CABAC
Frame Rate: 29.970 (NTSC)
Field Order: None (progressive scan)
Pixel Aspect Ratio: 1.0000
Bit Rate: 8,000,000

When the clip moves around you can see some type of motion blur. Maybe its interlacing, maybe its not. Any thoughts would be greatly appreciated. Uploaded at 7 pm est with a 30 minute delay time.

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[Danny Hays]

That’s very strange. Vegas shows each progressive frame as both upper and lower, interlaced. Your TV recorder isn’t recording true 720p. I would set it to 1080i capture, and let Vegas do the interlacing.

[Kevin Byrne]

Hey thanks a lot everybody, I stopped the interlacing by switching my tv to 720p as opposed to 1080i.