logo

Live Production Software Forums

www.vmix.com

Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error
NDI Latency - Latency while refeeding in vMix
Options
Go to last post Go to first unread
Previous Topic Next Topic
ukcpw  
#1 Posted : Friday, September 13, 2019 12:02:26 AM(UTC)
ukcpw

Rank: Advanced Member

Groups: Registered
Joined: 8/30/2018(UTC)
Posts: 44
Location: Paris

Thanks: 3 times
Was thanked: 1 time(s) in 1 post(s)
Hi all

Here's the setup :
I switch cams and videos to output 1, then create a new input with NDI feed from out1 to resize it and add a BG for screen and streaming.
The problem I have is that the NDI feed in my new input is delayed compared to my output1, which results in an important delay on the event screen.
I checked in the NDI Monitor app and the delay is here, so it seems that it's already delayed when it comes out of vMix.

My comp setup :
HP OMEN with GTX1070
Sonnet Thunderbolt 3 with BMD decklink devices
Gigabyte switch

Thanks for your help !
Back to top

Wanna join the discussion?! Login to your vMix Forums forum account, or Register a new forum account.
Back to top  
mjgraves  
#2 Posted : Friday, September 13, 2019 5:32:53 AM(UTC)
mjgraves

Rank: Advanced Member

Groups: Registered
Joined: 7/1/2015(UTC)
Posts: 1,150
Man
United States
Location: Houston TX

Thanks: 319 times
Was thanked: 263 time(s) in 233 post(s)
Think about it...vMix processes the video to arrive at the output...which takes time.

You use that as a new source. It can only be delayed relative to the original source. Processing video takes time.

You're be better off trying to flatten your arrangement so you are not looping an output back to an input.

You can switch sources while they are squeezed over a background without resorting to this.
Back to top
WWW BLOG
ukcpw  
#3 Posted : Friday, September 13, 2019 4:53:14 PM(UTC)
ukcpw

Rank: Advanced Member

Groups: Registered
Joined: 8/30/2018(UTC)
Posts: 44
Location: Paris

Thanks: 3 times
Was thanked: 1 time(s) in 1 post(s)
Hi mjgraves

In fact I tried that first, but I need to record a clean switch 100% screen of my cams without BG. How can I do that ?
Back to top
Users browsing this topic
Similar Topics
NDI Latency and Adjustments (NDI)
by boris9831 7/4/2020 11:08:52 AM(UTC)
NDI Latency from VMix to VMix (General Discussion)
by madido 5/6/2016 10:53:38 AM(UTC)
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Privacy Policy | Powered by YAF.NET | YAF.NET © 2003-2024, Yet Another Forum.NET
This page was generated in 0.084 seconds.