Am I with a good workflow ? I’ve got jagged pixels on final DVD ….

[Daniel Low]

[Fredy Schwerdtner] “I recorded with my HDV camera Sony HVR-A1U as HDV”

720p or 1080i?

__________________________________________________________________
Sent from my iPad Nano.

[Fredy Schwerdtner]

It was in 1080i …..

MacBook Pro 17″
2.5 GHz Intel Core 2 Duo
4GB 667 MHz DDR2 SDRAM
(2) External HD LaCieMac (400/800 FW and USB)with 500GB -(2) USB External HD Western Digital (in cases) with 750GB
OS X 10.5.7
Final Cut Studio 2

[Daniel Low]

Did you deinterlace the HDV footage?

__________________________________________________________________
Sent from my iPad Nano.

[Fredy Schwerdtner]

No I did not …..

MacBook Pro 17″
2.5 GHz Intel Core 2 Duo
4GB 667 MHz DDR2 SDRAM
(2) External HD LaCieMac (400/800 FW and USB)with 500GB -(2) USB External HD Western Digital (in cases) with 750GB
OS X 10.5.7
Final Cut Studio 2

[Daniel Low]

[Fredy Schwerdtner] “No I did not ….. “

You need to. Use the Frame Controls in Compressor to perform this.

__________________________________________________________________
Sent from my iPad Nano.

[Fredy Schwerdtner]

Daniel, I’m a little be confused …..
Do i have to do it always ? What happens if somebody watches the DVD on a old regular TV set ? I meant, not the new widescreen progressive ones ….

MacBook Pro 17″
2.5 GHz Intel Core 2 Duo
4GB 667 MHz DDR2 SDRAM
(2) External HD LaCieMac (400/800 FW and USB)with 500GB -(2) USB External HD Western Digital (in cases) with 750GB
OS X 10.5.7
Final Cut Studio 2

[Fredy Schwerdtner]

Thanks Daniel ….. in advance …..

MacBook Pro 17″
2.5 GHz Intel Core 2 Duo
4GB 667 MHz DDR2 SDRAM
(2) External HD LaCieMac (400/800 FW and USB)with 500GB -(2) USB External HD Western Digital (in cases) with 750GB
OS X 10.5.7
Final Cut Studio 2

[Daniel Low]

If you are taking interlaced HD content down to SD then you have to deinterlace, regardless of what display you’ll be viewing it on. 1080i into 480i or 576i will not fit

Just because it’s an ‘old’ regular TV does not mean the source needs to be interlaced.

Interlace was used to get over ‘bandwidth’ restrictions.

https://en.wikipedia.org/wiki/Interlace#History

__________________________________________________________________
Sent from my iPad Nano.

[Brian Alexander]

I wouldn’t deinterlace the footage for a couple of reasons:

1. The existing hardware deinterlace processors are going to do less damage than software deinterlacing plus you save time in this step of the workflow.

2. Creating 30p (29.97) material on a DVD is going to introduce more artifacts by double (really triple) processing. Scan Line Decimation (480p -> 480i) then Scan Line Interpolation (480i -> 480p). (Scan line interpolation on LCD, Plasmas, Projectors; normal interlaced scan modes on CRT displays)

That said, here’s how I would troubleshoot the jaggies:

1. Make sure another DVD looks the same on the same monitor. You could be looking at poor processing in the monitor.

2. Scaling factors are different with different displays so your best bet would be to look at this DVD on your computer at it’s native resolution. Turn off the deinterlace filter if your using DVD Player, (OS X) this will show you true quality without all the processing.

3. Make sure the DVD player is setup correctly for your 16:9 or 4:3 display.

4. Make sure Zoom or Stretch or Fill is not enabled on the monitor.

—
Brian Alexander
Sr Video Engineer
Freeman AVS

[Daniel Low]

[Brian Alexander] “I wouldn’t deinterlace the footage for a couple of reasons: “

Good luck getting 1080i content to look good in a 480i program without deinterlacing!

__________________________________________________________________
Sent from my iPad Nano.