[Rick Anvican]

I would like to superimpose the current time and date at the beginning of the DV stream as it is being output over Firewire. Is there a software titler/mixer that could do this then?

[Rick Anvican]

Hi Ann, many thanks for clarifying.

[Rick Anvican]

I used the Sony Secondary Color Corrector filter with the clipping (luma) indicator presets from here and they have pointed out areas where the clipping has occurred. They are very minor in terms of the change in value and affected pixels in most cases occurring at random but the clipping becomes more obvious when the video content approaches maximum white levels. You would have to stare very hard at the waveform monitor, but sometimes it’s not obvious when the level is over the limit by a fraction of an IRE unit.
I thought that broadcasters in the analog days would have been very strict about this and the area between probably 80IRE to 100IRE would be reserved as peaking headroom for maximum white. In the end I think it’s just a nitpick from me.

[Rick Anvican]

[John Rofrano] “The YouTube player will blindly expand all video. It expects Studio RGB 16-235 and if you give it full Computer RGB 0-100 you will get the wrong levels. Only give YouTube Studio RGB.”

Hi John,
I am using Studio RGB based on the assumption that the project will be encoded with a codec expecting Studio RGB levels and where the render is to be delivered (e.g. YouTube). Unless it’s a limitation with the lossy encoding and compression, I can’t find a reason for the lossy codec to introduce clipping into black/white levels where the levels are perfectly in legal boundaries since lossless codecs don’t have that problem.

[Rick Anvican]

Thanks for the suggestion Robert. It seems like only the high-end audio programs can access Firewire devices.

[Rick Anvican]

[John Rofrano] “I would contact Sony and see if this is a bug or working as designed because of some PAL restriction. It does seem odd that MPEG2 CC supports PAL and MXF does not.”

I have made negotiations with my client for an alternative captioning method so thanks for confirming this anyway John. Sony Vegas mentions NTSC line-21 captions in the manual which is part of the CEA-608 standard. There’s line-22 captions for PAL which wasn’t widely used because of limited support so I think that’s why Vegas hasn’t bothered with it.

[Rick Anvican]

[John Rofrano] ” [Rick Anvican] “…when I render to template “NTSC MPEG IMX 50″ the line-21 captions are at the top of the video in the appearance of dashed white lines,”

Where are you seeing that template? My copy of Vegas Pro 12.0 has no template by that name under MainConcept MPEG-2.”

It’s a standard template from “Sony MXF(*.mxf)”, I didn’t mention that in my prior post, sorry.

Now that I think of it, PAL regions used Teletext for closed captioning and I don’t think Sony Vegas can embed Teletext on the video in the form of dashed lines at the top of the video like line-21 captions.

[Rick Anvican]

My apologies John, I meant to add that I intend to deliver this in MPEG IMX format and I wanted the closed captions to be embedded on the video stream itself, e.g. when I render to template “NTSC MPEG IMX 50” the line-21 captions are at the top of the video in the appearance of dashed white lines, similar to widescreen signalling.
I could not find in the Vegas (12) manual where PAL SD format is supported and when I did try rendering to “PAL MPEG IMX 50”, there were no white dashed lines at the top of the video.

[Rick Anvican]

Hi Rick,
I’ve been looking at programs similar to WinDV which they all can output DV files to Firewire.
My aim was to see if there was any media player program that can output to Firewire; I have a Matrox RT.X100 card which can output analog video whenever a DirectShow compatible program (e.g. Windows Media Player) was playing a video.

[Rick Anvican]

[John Rofrano] “It should be just as good as the ADVC-100 but not as good as the ADVC-300 with TBC. If you weren’t going to spend the money for the ADVC-300 or you don’t need Time Base Correction, then go for it. It should work great.”

Thanks John, I did expect that camcorder DV pass-through would perform a bit under the ADVC devices but I do hope that the camera being a 3CCD model, the quality of its converter should be good.