Chris Young
Forum Replies Created
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Kim ~
Yes, scopes set to Studio RGB. I know what you mean as we still have Edit v6.0 running with Targa SDX studio, Abekas 3D and Madras. Great system but sadly it got left behind. I shudder when I think how much we paid for that system. Oh well, time marches on but I must say with two systems running full time with Vegas and one part time they have proved to be very reliable and can cover ninety percent of what we need for corporate and broadcast delivery. Can’t complain then can I?
Chris Young
CYV Productions
Sydney -
Yes! So true. Pal PD150’s show the same bar levels. For the life of me I don’t know why Sony make their small cameras without PAL EBU (European Broadcast Union) bars. PAL EBU bars are 75% 100/0/75/0 bars with the white level set at 1 volt.
What you are seeing on your PAL camera are North American SMPTE NTSC bars which have the white level set at 75%. If you put both sets of Vegas bars on a time line plus some bar footage from your VX2100 and open your Waveform and Vector scope in Vegas you can see the levels change from 75% white on the SMPTE NTSC bars to 100% white on the SMPTE PAL bars. Pretty sure you will find the white level on your VX bars are 75%. Go figure.
The important to remember is that for correct broadcast levels in the UK your video levels, peak to peak, should be 1 volt. 0 volts for black level and 1 volt for your peak white levels. Beware of your black levels in Vegas as they are not ‘video black’ as Vegas works in computer 8 bit RGB levels. These go from 0 black to 255 white. Whereas the correct video gamut goes from 16 for black to 235 for white. Try putting some media generator black and white on the timeline and watch their levels in the waveform monitor. Now try applying the ‘broadcast colours’ plug-in. Uncheck the 7.5 IRE setup box, only used in NTSC Nth America, and make sure the ‘studio RGB’ box is ticked and select ‘conservative’ from the drop down menu. The levels you will now see as you drag through the black and white media on your timeline are black at 0 and white at 100. These are your correct delivery levels for ALL your PAL video content if aimed for broadcast. Not critical for non-broadcast delivery but a good practice to get into as nobody can then accuse you of delivering non-standard levels.
You can find some useful info on colour bars (downloadable) in the 8 bit editing world at:
https://www.belle-nuit.com/testchart.html
Chris Young
CYV Productions
Sydney -
Well now the news is out I guess I can mention the following. I did post this a few weeks back but the post got pulled. Ron L asked Sony and they said it would be better to pull it until the announcements were made at NAB, fair enough as they are Cow supporters.
To cut a long story short we attended the release of the Sony XDCam HD cameras here in Sydney. During the course of the day they showed us a Power Point slide show which mentioned that Vegas 7 would be released in Sept and would support the XDCam HD series. Would have FAM (file access mode) over firewire for these cameras and support the 18 and 35 Mbps VBR modes of XDCam HD. Plus obviously the 25 Mbps FBR mode which makes it compatible with HDV from Sony as we know it. It was also suggested that Vegas would most likely support the ‘proxy video’ that is recorded concurrently with the high rez video on the HD cams using Blu-Ray. Allowing editing of the proxy material and then conforming when finished using the hi res XDCam HD footage. A bit like using intermediary files in HDV editing I guess. They also stated that there were a couple of Sony Media software engineers over in Japan working with the camera factories to develop much tighter integration between Vegas and new Sony camera hardware. No mention of 10 bit though.
A few of us suggested it might be great if they could pass on to Sony our wish to see if Vegas could support the growing power of the GPU processors that are now becoming more popular on a lot of the PCIe graphics card. If this power could be harnessed for real-time preview and rendering it could make a huge difference to Vegas performance across the board.
Interesting times ahead me thinks!
Chris Young
CYV Productions
Sydney -
John ~
Being curious I tried it once, no luck. I can see various capture devices listed in Vegas including our Canopus ones on three different systems but Vegas always comes up with an error dialogue if I try to use any of them. It only seems to use its own capture device. If you do discover Vegas can see any other devices or capture programs post back, still curious.
Chris Young
Sydney -
Would this work? Half way down the page ‘This is a test’.
https://www.wavsource.com/tv/tv_misc3.htm
Chris Young
Sydney -
Had similar problems in the past. First I set the picture properties to ‘reduce interlace flicker’ then under the job properties set the render quality to ‘best’ then set de-interlace method to ‘blend fields’ and left motion blur as ‘gaussian’. This fixed all my problems but with the trade off being slightly longer render times. Hope it works for you.
Chris Young
CYV Productions
Sydney -
Paul ~
I don’t know as I haven’t done it but as a work around consider the following, it should work. The five second bits that you need from your hour avi. What if you select them in the trimmer, make subclips, bang them all on a track and render them out as a new file and then import that and re-select your five second bits from it as you need them. On archiving the job it will then only refer to the new render avi when making the back-up. Good luck!
Chris Young
Sydney -
Paul ~
Yes, well all this got me thinking and so I tried an exercise. I found an avi that happened to be 67 minutes and 28 seconds long, file size (PAL) was 14.3GB. Dumped this on a timeline, no velocity settings, trimmed and selected a loop region of 10 minutes exact and ‘saved as’ with copy and trim selected plus 2 second handles. Got what I expected, a 10 min 4 second file with a size of 2.03GB.
Next I applied a velocity envelope to the 10 min loop selection and set it to 50%, then dragged it out to exactly 20 mins duration. Selected that 20 min loop and did a ‘save as’ plus copy trim with 2 second handles. The resultant file was now 32 min 7 seconds long with a size of 6.47GB, an odd one!
So upon examination it is definitely not ‘saving as’ a full copy of the original media, it is trimming, as the original in this case was 14.3GB. It created from the 20 min loop selection, with velocity envelope applied, an unexpected file size of 6.47GB with the odd length of 32 minutes 7 seconds.
Most our jobs have and avi of around 1.5 to 3 hours duration from which the bed of a one hour show is made. So yes, to answer your question the file size created is larger than I expected but well short of the original avi file size. I have never examined this in detail before so I never questioned exactly how big the ‘saved as’ avi’s were. All I knew is that they were considerably smaller than the original avi’s from which they were derived. How to explain this odd sizing I don’t know. Is it a ‘bug’ or not? Good question. Wonder if someone from Sony might know?
Chris Young
CYV Productions
Sydney -
Ed ~
Sorry if you said velocity, suffering brain fade no doubt. All the same I haven’t suffered the problem and there would be around at least fifteen to twenty velocity events, fifty percent usually, with slo-mo replays of every race start and every major racing incident in each sixty minute program (motor sports) and we still don’t have the problem that was outlined, so still a bit puzzled. Hmm! must read slower next time.
Chris Young
Sydney -
4K, that is pushing the threshold for Vegas. Have had render problems with large scale pics especially when using ‘pan crop’ settings. As Steve suggested, strongly advise to follow his pointers and if no pan crop settings are used resize your stills to the project settings size. If you dont have Photoshop and don’t want to spend that sort of dollars go download Irfanview which can do a ‘batch conversion’ on a whole lot of images in one go. Does a very good job and costs zip. Free download at:
Download the plugins pack as well. You will find Irfanview useful for many things.
Chris Young
CYV Productions
Sydney