Comments

JN- wrote on 1/25/2020, 6:03 AM

@AveSatanas It would appears so, see DR. Zen's excellent tutorial.

Example from tutorial ... “There is a quick way to make sure your Output is Broadcast Safe, by applying the Broadcast Safe filter to the Video Output FX button above the Preview Window. Go to the Video Fx tab and drag Broadcast Colours - Extremely Conservative preset onto the output link. This will clamp everything down so that it does not go past the 16-235 range.”

Last changed by JN- on 1/25/2020, 6:12 AM, changed a total of 1 times.

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Musicvid wrote on 1/25/2020, 7:54 AM

Use the histogram. Your material is already broadcast safe (other than copyright). You could beef up the blacks a little.

I think I gave you this link previously.

https://www.vegascreativesoftware.info/us/forum/pc-to-tv-levels-a-comedy-of-errors--107325/

The broadcast safe filter is a holdover from analog transmission standards, and as a voltage metric, is not entirely relevant to digital broadcasting, although a lot of them still use waveform measurements.

Outlier (specular) pixels in camera footage are not to be considered, otherwise your video will be too flat. Zebra whisperers just need to just let go of useless information.

AveSatanas wrote on 1/25/2020, 4:19 PM

i get what your saying @JN- but isnt that extreme conservitive the same as levels?

AveSatanas wrote on 1/25/2020, 4:50 PM

also @Musicvid how did you know i need to boost the blacks a little?, would really love to learn

JN- wrote on 1/25/2020, 4:57 PM

@AveSatanas I normally just use Levels, I didn’t know about the Broadcast safe FX until I saw it mentioned in the tutorial. I guess the advantage of the Broadcast safe fx is that it gets you there at 16-235 immediately without any fiddling with the Levels fx, quicker really. I don’t produce anything for broadcast so sometimes I kinda comprise by setting levels somewhere between 0-16 and 235-255, I prefer to not lose the contrast. Maybe the VLC player messes this up? by expanding the levels on playback, i'm not sure.

 

 

 

---------------------------------------------

VFR2CFR, Variable frame rate to Constant frame rate link to zip here.

Copies Video Converts Audio to AAC, link to zip here.

Convert 2 Lossless, link to ZIP here.

Convert Odd 2 Even (frame size), link to ZIP here

Benchmarking Continued thread + link to zip here

Codec Render Quality tables zip

---------------------------------------------

PC ... Corsair case, own build ...

CPU .. i9 9900K, iGpu UHD 630

Memory .. 32GB DDR4

Graphics card .. MSI RTX 2080 ti

Graphics driver .. latest studio

PSU .. Corsair 850i

Mboard .. Asus Z390 Code

 

Laptop… XMG

i9-11900k, iGpu n/a

Memory 64GB DDR4

Graphics card … Laptop RTX 3080

AveSatanas wrote on 1/25/2020, 5:07 PM

i thought broadcast levels and levels fx were the same, i may be wrong

john_dennis wrote on 1/25/2020, 5:28 PM

@AveSatanas

"...how did you know i need to boost the blacks a little?, would really love to learn..."

Most likely @Musicvid said that from experience.

Yours

Still legal, but looks better.

AveSatanas wrote on 1/25/2020, 5:40 PM

@john_dennis did you just expand the contrast so the top dots and bottom dots touch the 0-100

JN- wrote on 1/25/2020, 5:49 PM

i thought broadcast levels and levels fx were the same, i may be wrong

 

@AveSatanas They can be used to get the same results, but the controls & dropdowns (not shown in screenshot) are not the same. Levels has the Preset Computer RGB to Studio RGB which gets you there anyway.

Last changed by JN- on 1/25/2020, 6:01 PM, changed a total of 1 times.

---------------------------------------------

VFR2CFR, Variable frame rate to Constant frame rate link to zip here.

Copies Video Converts Audio to AAC, link to zip here.

Convert 2 Lossless, link to ZIP here.

Convert Odd 2 Even (frame size), link to ZIP here

Benchmarking Continued thread + link to zip here

Codec Render Quality tables zip

---------------------------------------------

PC ... Corsair case, own build ...

CPU .. i9 9900K, iGpu UHD 630

Memory .. 32GB DDR4

Graphics card .. MSI RTX 2080 ti

Graphics driver .. latest studio

PSU .. Corsair 850i

Mboard .. Asus Z390 Code

 

Laptop… XMG

i9-11900k, iGpu n/a

Memory 64GB DDR4

Graphics card … Laptop RTX 3080

AveSatanas wrote on 1/25/2020, 6:18 PM

i thoguht

levels - limits contrast and brightness

broadcast colors - limits colors safely

 

but i remember musicvid told me they achieve the same thing

Musicvid wrote on 1/25/2020, 6:52 PM

Before Rendering:

  • Set the BLACK CLIP POINT to 16.
  • Set the desired WHITE CLIP POINT to 235.
  • Those are the correct delivery levels.

I have shown you examples of histograms, both correct and incorrect. The histogram is one of your Vegas Pro Video Scopes, accessed by View->Window->Video Scopes. Hope this clears it up for you!

Here it is again. Look at the lines. Look at your numbers.

Now, here is a slightly "beefier" version. As shown before, this curve shape gives a good knee/shoulder rolloff characteristic. Learn to recognize it. You can also learn to use the Waveform, as @john_dennis and many others prefer, although the histogram is the most visually obvious.

To be clear, there are different ways to set the levels. You can use the Levels filter. You can us the Curves filter, as does j_d. You can use the Broadcast Levels filter. Please do not try using the Brightness/Contrast or HSL filters!

AveSatanas wrote on 1/25/2020, 8:40 PM

Would this be a good Knee/Shoulder?

AveSatanas wrote on 1/25/2020, 8:41 PM

AveSatanas wrote on 1/25/2020, 8:43 PM

Also @Musicvid is levels and broadcast colors the same effect?

Musicvid wrote on 1/25/2020, 8:43 PM

Would this be a good Knee/Shoulder?

Yes!

Also @Musicvid is levels and broadcast colors the same effect?

The broadcast safe filter is a holdover from analog transmission standards, and as a voltage metric, is not entirely relevant to digital broadcasting, 

AveSatanas wrote on 1/25/2020, 8:45 PM

Should i worry about the dots going over the yellow?,

AveSatanas wrote on 1/25/2020, 8:47 PM

Should i worry about the dots going over the yellow?,

In this screen shot i have levels activated in com rgb to stud rgb so its not really limiting the image for colors if im correct

Musicvid wrote on 1/25/2020, 10:39 PM

Vectorscope indicates x-y linear distribution, bad for viewing levels.

Log histogram or waveform is best because they dampen linear spikes.

AveSatanas wrote on 1/26/2020, 3:19 AM

is there another reference you can show me on the histogram for rgb saturation? like how you showed me the knee and shoulder?

Musicvid wrote on 1/26/2020, 7:24 AM

No, unfortunately, because Vegas uses log histogram. Photoshop histogram is linear, like in most cameras. RGB Parade is a little hard for me to see.

Musicvid wrote on 1/26/2020, 8:41 AM

 I thoguht

levels - limits contrast and brightness

broadcast colors - limits colors safely

[Limits contrast and brightness = Limits colors safely]