[smitchell]

Hi,

I need some advice and background info on whether it is worth deinterlacing using vegas (& how) or leave the deinterlacing to the dvd player / plasma hardware?

1) I have a hc96 and will view the transferred video on DVD. I understand that plasma's are generally progressive and as mini DV is interlaced where is it better to do the deinterlacing?
My tv is a panasonic TH-42PV60e and my dvd player is a DAV-DZ110 which has the function to pass on "Normal Interlaced", "Progressive AUTO", "Progressive". The TV can accept progressive through the connected component input.

2) It seems that i may have recorded my honeymoon footage using the hc96 progressive mode, it doesn't appear to be fluid. I am in the process of running an experiment to confirm this, the display doesn't indicate 25p when apparently it should! So in this instance its a straight transfer to DVD.
(oops, rapid selection of cam in bangkok - 3 hours web browsing and assuming that progressive mode would provide the best quality. The manual doesn't indicate the severity of the judder which is prevalent when panning the camera let along with fast moving objects! Its actually not too bad so i am interested to see how interlaced looks.)

3) But what is the option in Vegas pro 8.0 to change the deinterlacing on/off and to what method?
I have identified one option which is in the file/properties box. The options are none/blending/interpolated. Is this the only option to select regarding deinterlacing or not and by which method?

4) this leads onto which method has other people had the most success with, blending or interpolated?

5) Has any one got any video footage from a hc96 uploaded that i can compare my efforts with?

6) I have recorded in both formats 25p/interlaced and am rendering both to burn to dvd as a test; also deinterlaing using both available methods.

7) with this experiement it initially appears that the interlaced mode took longer to focus when panning the camera than the progressive mode! odd, possibly less judder but more blur!

I am almost ready to go through all tapes and finalise my method of transferring, its now 12:30 and this camcorder project has escalated as my knowledge has increased but interesting non-the less!

Thanks for any help/ Steve

8) Additionally, Vegas defaults the field order to lowest frame first is this true for Sony hc96 recordings? if it isn't would it be immediately obvious on watching the dvd?

[redsox_mark]

1. It depends on the specific devices. I know a bit about plasmas, not so much on DVD players. I have a Panasonic plasma and I find it does a good job of deinterlacing; so if I have shot interlaced, I keep it that way. You'll see a recent thread of a user having trouble with footage from his HDV20 with motion; it looks fine played interlaced from the cam to his display, but if he has his DVD player (in this case a PS3) output progressive, it is blurry when there is movement.

2. The HC96 outputs interlaced. The progressive mode will make the 2 fields the same, but it will still be output as interlaced, and the display will try to de-interlace it. This sort of progressive in an interlaced container mode is only useful on a PC, if you tell the editor to treat as progressive.

3) But what is the option in Vegas pro 8.0 to change the deinterlacing on/off and to what method?
I have identified one option which is in the file/properties box. The options are none/blending/interpolated. Is this the only option to select regarding deinterlacing or not and by which method?

Yes, those are the only options. Note that setting one of them (e.g. it defaults to "blend") doesn't mean it will deinterlace; it depends on the render settings. E.g. if you render back out to DV-avi format, by default the render settings will be interlaced, lower field first. Interpolate tends to be better if there is high motion, blend for less motion. Note if you are rescaling the video you need to have a deinterlaced method set, even if your final render is interlaced.

4) As said earlier, for DVD or DV-avi renders I keep it interlaced; but I keep the default properties set to blend.

7) with this experiement it initially appears that the interlaced mode took longer to focus when panning the camera than the progressive mode! odd, possibly less judder but more blur!

This makes sense. It's not that it takes longer to focus, but that the display is having to deinterlace, which is tricker with fast motion.

8) Additionally, Vegas defaults the field order to lowest frame first is this true for Sony hc96 recordings? if it isn't would it be immediately obvious on watching the dvd?

DV is lower field first, the the default DV settings for Vegas are correct.

Edit (to add a summary):

1. With the HC96 I would suggest that in general shoot normal interlaced, and leave it interlaced, let the display handle it.

2. If you really did shoot using the progressive mode, you need to experiment, it might be best to treat it as progressive all the way (set deinterlaced method to none, render out to progressive).

[smitchell]

Hi thanks for the lenghty response.

It seems that my honeymoon tape wasn't shot with progressive as the experiment showed progressive as juddery, the honeymoon tape must have been due to my wife's DT's ;-)

3&4) So i will keep the miniDV to dvd transfer interlaced as advised but...
I render out as MAIN CONCEPT MPEG2 with the template DVD architect PAL widescreen video stream, will this always render out interlaced regardless of the deinterlace method chosen? So for interlaced i can still select blend or does it matter and none should be selected in this instance?

Is it possible to change the render interlace/progressive settings? Is it the 3 options i already wrote about?

thanks again/ Steve

[redsox_mark]

I render out as MAIN CONCEPT MPEG2 with the template DVD architect PAL widescreen video stream, will this always render out interlaced regardless of the deinterlace method chosen?

By default, yes. Unless you change the template when you render (custom/video tab). The default will be "lower field first", but it can be changed to "none - progressive scan".

Is it possible to change the render interlace/progressive settings? Is it the 3 options i already wrote about?

Yes you can change the settings. The 3 settings you wrote about are the options to how deinterlacing is done. Whether it is done or not depends on the render output settings.

[smitchell]

Now it is clear,
thanks, Steve