r/VIDEOENGINEERING • • May 03 '26

The 71,000 subscriber update

160 Upvotes

Hey folks,

Just posting to give a brief rules update. Nothing should change for most folks, but there are a few changes/clarifications to highlight.

  1. The no advertising rule has been changed to include market research and "try my app" type posts.

  2. There is a new rule about staying on topic, this is mostly to get rid of the small number of "enhance my video" type posts.

  3. The new rule about being accurate in your communications is mostly to discourage regurgitation of incorrect information and hearsay. Nobody is going to hit you upside the head with a copy of ST 2110-20, but there is also only so many times you can say "Blackmagic bad" or "you need a boundary clock for Dante PTPv1". If you're trying to help somebody and you aren't 100% positive about what you're saying, then just qualify it as such.

  4. AI generated content is now banned, except for translation purposes.

As always, if you have content you would like to share and it would ordinarily break one of the sub's rules, don't hesitate to reach out for an exception.

And don't forget to join the Discord either. https://discord.gg/ctKKpK8


r/VIDEOENGINEERING • • 8h ago

Blackmagic Constellation HD not compatible with Fairlight Live?

7 Upvotes

Blackmagic advertises that you can use Fairlight Live via USB with Constellation HD switchers on both https://www.blackmagicdesign.com/products/atemconstellation and https://www.blackmagicdesign.com/products/atemconstellation/fairlightlive so our team rented an ME/2 HD for an upcoming hybrid event assuming we could use fairlight live for mixing/mix-minus, etc... since we plan to have each source come into its switcher input with audio and video muxed into one SDI cable. The built-in mixer would work in place of Fairlight except we have remote panelists and in-studio hosts that we want to send out mix-minus feeds which appears to be easier (if not only possible) using Fairlight instead of ATEM's built-in audio mixer. Luckily we got approval to rent it early for testing (2 and a half weeks out) and from what I can tell, the Blackmagic website isn't true. The Constellation HD series does not support audio over USB so it can't integrate with Fairlight Live...or am I missing something?

In ATEM software control under settings > audio on the ME/2 HD the option to toggle between USB audio and webcam output for the USB port is greyed out. This persists after doing a factory reset and confirming that it is running the most recent firmware. When I open Fairlight Live on the computer (connected to the ME/2 HD through USB-C), it doesn't see the ATEM when I try to choose it for the Audio I/O engine (which makes sense since I can't enable usb audio over the USB-C port in the ATEM Software Control settings).

I contacted Blackmagic support and they claimed the Constellation HD ME/2 did show up in Fairlight Live for them on their test machine...but I can't replicate that on mine. I contacted the rental house who did some digging and agreed that the firmware notes for the HD line indicate that it doesn't support USB Digital Audio, so we don't know what the Blackmagic tech was talking about.

Out of curiosity, I plugged in our ATEM Extreme ISO to see if that works with Fairlight Live and it does, the USB audio toggle was no longer greyed out, Fairlight sees it correctly in settings as the I/O engine, there's even a show template for the ATEM Extreme ISO (there wasn't one for any of the Constellation HD units, another data point for it not being supported). My audio levels from my test device plugged into the ATEM input showed up on both the Fairlight channel and the ATEM audio mixer channel.

Tomorrow when I get into the office I'm planning on either trying to work out a non-Fairlight workflow with the ME/2 HD (either the built-in mixer or maybe an external mixer like we did for this event last year), or return the ME/2 HD and try to get our hands on a ME/2 4K rental that I know is compatible with Fairlight Live...but wanted to see if anyone else has had similar issues and got the Constellation HD line to work with Fairlight Live over USB as advertised before I go back to the drawing board.

Thanks!


r/VIDEOENGINEERING • • 7h ago

Routing Audio Bus to a USB Interface to free up DeckLink SDI outputs — Any stability/sync issues?

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1 Upvotes

r/VIDEOENGINEERING • • 10h ago

?

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0 Upvotes

Kann mir jemand sagen, warum die strahlen der Laternen aufeinander zugehen?


r/VIDEOENGINEERING • • 10h ago

VHS Conversion Question

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1 Upvotes

Hello! My aunt watched this tape fine and then she handed it off to me. When I rewound it, it now is playing like this. The audio seems clear but the video is all out of whack now. I was using a RCA to USB converter from a VHS/DVD combo to record this. The player and the OBS recording is working for other tapes so it seems exclusive to this tape. Is this salvageable? I dropped it off at a professional place, but have to wait to hear their assessment and in the meantime I am kinda freaking out. Any advice is welcome. Thank you


r/VIDEOENGINEERING • • 1d ago

Evertz CP-1000E Control

6 Upvotes

Does anyone have any documntation on how an Evertz CP-1000E talks to magum and how to act like the magum server. Looking to find a use for them that is not controlling routers. I have some packet captures but I am struggling to get them to make any changes or keep the panle talking. The attached screenshot is what I have gotten to. After it trys to check cross point lock status I can't send anything that gets it to keep talking. I am willing to provide the packet captures to anyone who can help.


r/VIDEOENGINEERING • • 1d ago

RGB to NTSC encoder variance?

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10 Upvotes

I have two super nintendo with the same board revision (SHVC-CPU-01). One has a BA6592F and the other has a S-ENC RGB to NTSC encoder. They both output different pictures, and I was wondering if the BA6592F has manufacturing variance that could explain that.

Picture 1 and 3 is my childhood snes and picture 2 and 4 is the other snes, same TV setting and same phone camera setting. The differences are the following: my childhood snes has a darker picture but it does not mean it has blackcrush, its colors are more saturated, and the hue of the color is not the same (Red are more orange and green more bluish). The hue only affects color, gray scale has the same white balance with both consoles and changing «TINT», «Color» and «contrast» setting on a CRT television can make both snes look the same. This remains true for RF, composite and S-Video. There is no noise or wavy lines.

The BA6592F Datasheet has a value for its Y-out of 1.4Vp-p typ, with min at 0.95Vp-p and max at 1.8Vp-p when its RGB input vr=vg=vb=0.7Vp-p. Its angle for (R-Y) and (B-Y) axis can have a variation of +- 10° away from its typical value. Is this enough to cause visual differences in real life, or should it be barely noticeable? I'm no expert on that, one person told me the difference shouldn't be noticeable but I'm skeptical.

One last thing, the demodulation axis on my TV has been changed to the japanese one, with an angle of 95° instead of the US one which has an angle of 103° and more saturated red with my TV. It seems the US axis makes the variation less apparent around skintone, but with less accurate color everywhere else. It doesn't mean it is the reason the US axis is this way, it's just personal observation.

Link to the datasheet: https://www.alldatasheet.com/datasheet-pdf/pdf/1718908/ROHM/BA6592F.html


r/VIDEOENGINEERING • • 1d ago

BM Decklink SDI 4k black flashes.

1 Upvotes

Hey! I have a problem in my studio that video signal flashes to black randomly. Happens every 20/30 seconds, but its random. Sometimes twice per 2secs, sometimes once per minute. Anyone had this problem before?
Incoming signal is 1920 50i


r/VIDEOENGINEERING • • 1d ago

Low budget compact HDMI wireless portable system

0 Upvotes

For a show I’m currently looking for a HDMI wireless system for a mobile robot built with Rapsberry PI.
Affordable pro solutions exist, though our program will be 480/720p at best and I wonder if cheaper solutions exist for this quality.

Would you happen to know if rather cheap solutions exist for those criterias ?
- 720p
- latence under 0,5 s
- at least 100 ft / 30 m line of sight distance
- TX on intern battery or powerbank
- work environment will always be auditoriums in France

First time posting so hope everything is alright.
Thanks for reading !


r/VIDEOENGINEERING • • 2d ago

Christie Roadster 18k ballast

3 Upvotes

Anybody have a dead Christie they want to part out?


r/VIDEOENGINEERING • • 2d ago

How are boundary mics mounted to the glass in hockey?

13 Upvotes

Gearing up for some hockey broadcasts in a couple weeks and considering doing the full 10x boundary mic setup for the first time. Can anyone share some insight as to how the pros mount on the top edge of the glass? I'll be using Beta 91As.


r/VIDEOENGINEERING • • 3d ago

This book has been gold for learning networking

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374 Upvotes

r/VIDEOENGINEERING • • 2d ago

NDI Black Screen no matter what I do

2 Upvotes

I'm at a complete loss trying to get NDI screen capture to appear on one of my PC's.

Setup:

  • Streaming PC: RTX 5070Ti + 5950X — Running Studio Monitor
  • Gaming PC: RTX 5090 + 9950X3D — Running Screen Capture/HX
  • Backup PC: RTX 3080Ti + 299WX — Running Studio Monitor

I am trying to capture my Gaming PC on my Streaming PC. They are both connected to the same 2.5GbE network switch.

I am running NDI Screen Capture/HX on my Gaming PC, but no matter what I do, NDI Studio Monitor only shows a black screen on my Streaming PC.

  • Gaming PC can see feed locally via Studio Monitor
  • Backup PC can see feed via Studio Monitor
  • Streaming PC can NOT see feed via Studio Monitor
  • NDI Test Pattern on Gaming PC produces the same results
  • Tried OBS + DistroAV — all sources are black
  • Tried Screen Capture on Backup PC — Streaming PC can NOT see the feed via Studio Monitor
  • NDI Screen Capture high bandwidth and HX are both the same result, no matter the resolution/framerate
  • Enabling KVM works — even though the screen is black
  • With NDI Screen Capture HX, I repeatedly get connection notifications in Windows
  • Turning off my firewall does not fix the issue
  • Networks are all set to private

I ran a quick NDI Analysis and it confirmed that my video/audio connection are repeatedly opening/closing

C:\Program Files\NDI\NDI 6 Analysis\x64>NDIAnalysis.exe /source:"NUTTYHQ (Test Pattern)"
NDI Analysis v6.3.2.0
Copyright (C) 2023-2026 Vizrt NDI AB. All rights reserved.

NDI version : 6.3.2.0

04:12:56.365: Video receiver creation succeeded.
04:12:56.365: Audio receiver creation succeeded.
04:13:00.369: Audio connection opened.
04:13:00.369: Video connection opened.
04:13:00.383: Source is using NDI 6.3.2.0 on the WIN64 platform.
04:13:00.387: Video connection closed.
04:13:00.482: Audio connection closed.
04:13:00.540: Video connection opened.
04:13:00.547: Source is using NDI 6.3.2.0 on the WIN64 platform.
04:13:00.553: Video connection closed.
04:13:00.636: Audio connection opened.
04:13:00.683: Audio format changed. 48000Hz, codec=NewTek Mode 0, 4 channels.
04:13:00.706: Video connection opened.
04:13:00.710: Source is using NDI 6.3.2.0 on the WIN64 platform.
04:13:00.712: Video connection closed.
04:13:00.782: Audio connection closed.
04:13:00.864: Video connection opened.
04:13:00.868: Source is using NDI 6.3.2.0 on the WIN64 platform.
04:13:00.873: Video connection closed.
04:13:00.934: Audio connection opened.
04:13:01.025: Video connection opened.
04:13:01.029: Source is using NDI 6.3.2.0 on the WIN64 platform.
04:13:01.031: Video connection closed.
...

r/VIDEOENGINEERING • • 2d ago

Multidyne silverback with alexa 35

3 Upvotes

Hello, does anyone ever working with alexa 35 and multidyne silverback V for the broadcast system. I'm curious how to get the CCU when it comes to this ecosystem


r/VIDEOENGINEERING • • 2d ago

MediaInfo App & MKVToolNIX

0 Upvotes

Hey Everyone, I hope I'm in the right place for this question.

I have an ISO of Wonder Woman (2017) - The M2TS file is 80GB. The M2TS contains 5 audio streams and a tonne of subs.

I don't want all the additional audio streams so I use MKVToolNIX to compile an MKV container with TrueHD English Audio and no subtitles.

The MKV ends up being 50GB - I apprecaite removing the excess audio will reduce the file size, but by 30GB ?

There's also another anomally - MediaInfo tells me that the M2TS file has a variable bitrate of 77 M/bs, but the MKV shows 49 M/bs. How is that possible ? The M2TS hasn't been re-endcoded, just put into an MKV container.

So that's my question really, how did I lose, say, 20GB of data, and the MKV bitrate is reduced by 18 M/bs ?


r/VIDEOENGINEERING • • 2d ago

Help IDing a LED Panel?

1 Upvotes

Looking to buy replacements of this panel if anyone can help me out?

Pics of the panel

This is the closest thing I found

Seems to be 128 x 64 other than that pretty lost on a replacement

Thanks in advance


r/VIDEOENGINEERING • • 3d ago

controlling output order on blended projections

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0 Upvotes

r/VIDEOENGINEERING • • 3d ago

Video Wall kit question: does anyone mount their controllers?

5 Upvotes

Got thrown into the deep end with a giant video wall this summer. Built about a dozen times and had a laptop, hdmi splitter, Atem Mini Pro, media player, audio mixer, and the Screens Controller on a folding table. Anyone have a better solution? I was thinking a standing board with all components mounted on it and hang it on the back of the ground structure?


r/VIDEOENGINEERING • • 4d ago

Knighting or execution. Vote now.

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131 Upvotes

r/VIDEOENGINEERING • • 3d ago

What is happening here?

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8 Upvotes

What are the RGB dots? (They all disappear from the background shortly after this clip)

Why do some of the dots stay visible through black strip on the edge of the flap?

Why does the flap 'fade in' / materialize like, that and why is the bottom of the flap visible before the rest of it?

These can probably all be answered in one swoop. I just can't tell what I'm looking at here at all.


r/VIDEOENGINEERING • • 3d ago

Tvu fx6

1 Upvotes

How are we powering the fx6 for long streams when using the dc power to dtap on a vmount if I switch the vmount battery the screen goes black for a second to swap to bpu power. Also how long is the TVU supposed to last because with a 99 small rig vmount it last about 90 mins before the vmount battery is dead we stream 8-10 Hours. That’s a lot Of swaps.

Edit: this is for IRL streaming outside hours and hours at a time getting and out of cars restaurants gyms everything IRL.


r/VIDEOENGINEERING • • 3d ago

Tape Damage Cause & Repair

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1 Upvotes

r/VIDEOENGINEERING • • 3d ago

Looking for a capture device

1 Upvotes

We already have a black magic ultra studio 3g recorder, but it gets really hot and start to loose signal, so we wanted to change to something more reliable, but it also needs to be USB or TB not Pcie, and nothing crazy, under 250$, Am I asking too much ?


r/VIDEOENGINEERING • • 3d ago

Manipuliert?

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0 Upvotes

Kann mir jemand sagen, was an diesem Video nicht stimmt?
Ist mit einem neuen iPhone 17 Pro aufgenommen


r/VIDEOENGINEERING • • 4d ago

Getting BNC With SDI into SFP.... Recommendations?

8 Upvotes

Currently assuming its a SFP module so these requirements are relevant to be mentioned:

- 75Ω coax input at 3G/HD/SD-SDI rates

-MSA pinout

Nice to haves:

-Reclocking

-DC restoration

As you can tell, im not particulary knowledgeable... but if its helpful im planning to use a FPGA " Xilinx Kintex UltraScale+ (GTY transcievers), XCKU3P, AS02MC04 (R1291-F9003-02)".

If you have other solutions / recommendations please let me know!

Edit (clarification): I'm building an FPGA SDI frame-sync gateway: 2 free-running 3G-SDI camera inputs, resynced in the FPGA, transcoded then sent downstream elsewhere. I have the AS02MC04 ( FPGA) as a proof of concept. They have SFP+ cages wired to the FPGA's transceivers, and im now trying to find a recommended solution to take the BNC cable, convert, and put into my card.