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Aujourd’hui — 21 septembre 2019Vos flux RSS

IsoCorder download problems.

Par Mark5000
Hi I've been trying to download IsoCorder from the page, but the request button does not respond or times out. (Tried with Firefox and Chome, on several different machines)

Is the two channel IsoCorder available at the moment?
Is anyone else having problems downloading IsoCorder?


Pauses in LW

Par clborrelli
I have the newest MAC PRO and using LightWave v 2015.3 and every time I try to do anything
LightWave pauses. Even if I use v 2018..07 or v 2019.1 they all do it. This has been going
on now for over a week. Has this ever been brought up as a problem ??? Could it be that I
have too many versions of lightwave in my applications folder ??? I only have one open at a
time. and they are very simple scenes.

Has anyone have any ideas on this one ???
Hier — 20 septembre 2019Vos flux RSS

SDI inputs on NC1 IN stop working after Windows updates

Par kelbyadmin
Ugggghhh! Everytime a Windows update runs I lose the SDI inputs on our NC1 IN unit. Ultimately, I have to uninstall the last update (sometimes 2-3 updates) before the inputs start working again. Or I have to do a reset to factory in order to get SDI inputs working. This is not only annoying, but a HUGE waste of time!!!!

Is anyone else experiencing this?

NDI 4.0 Scan Converter -> VMC1

Par Meekel
Has anyone tried running Scan Converter from NDI 4.0 Tools and viewing the feed on a VMC? On both of our VMC's it is incredibly laggy. If I view in Studio Monitor on a PC it looks completely fine.

Skype/Zoom NDI Server Audio Crackling

Par rlsafran
Haven’t used my Zoom/Skype servers since NDI 3.8 came out. I’m hearing a crackling noise each time the remote caller starts to speak in my 460 and TC1 recordings. I have two different Windows 10 computers running Zoom/Skype using NDI Scan Converter/Virtual Input and they both have the issue. It’s happening connected to a 460 or TC1. The local Zoom/Skype server recordings are clean.

I’ve tried setting the VB-Audio In/Out, Speaker and NewTek line to 48kHz and 44.1kHz, no change.
I downloaded NDI 4.0 and it looks like it’s not currently available as the download file was still NDI 3.8.

Any ideas? I’ll upload a sample audio clip later this afternoon.

NDI 4 Tools not opening Win 10

Par mannye2003
Anyone else having issues opening the executables for NDI 4 Tools in Windows 10?
À partir d’avant-hierVos flux RSS


Par jkerry211
It the new NDI 4 to some item only on Windows 10 or can Windows 7 use all the available features. I remember the 3.8 some things did not work on Windows 7.

This also may seem unknown, but can I load NDI4 onto the TriCaster system itself?


Scan Converter 3.8 not showing 2nd display as a source

Par dwallace
We run NDI Scan Converter at our church to send the screen displays to our recording system, but something changed ( Windows Patch or Driver update ) and now it will only send the "primary" display as a source. I've updated to the new 4.0 version and have switched the video connections around ( original: DVI on NVIDIA card - primary, HDMI onboard - secondary ... to ... HDMI onboard - primary, DVI on NVIDIA - secondary ) and it will only send the Primary connection.

If I remove the primary display cable boot with the secondary as the only display and then reconnect after it is booted it will send both sources but upon reboot it all goes back to the same.

Any suggestions.

NDI Receiver on iOS

Par smallfly

I'm looking to develop a NDI receiver app for iOS. Is it now possible? Has decode support been added to the iOS SDK?
I found the following app - - which let me think that this is now possible.

Thank you,

NDI Studio Monitor - Recording Function

Par RockNRollGeek
Is there more info about this function anywhere? I noticed that it drops recordings into the users default Videos folder on windows, Is there a way to configure the location these recordings go in to? (ie: If I need them to not go on the system drive and instead go onto a second hard drive that is more spacious and dedicated for recordings and things, etc).

I'm guessing there are no quality settings to be configured since its likely just a straight 1:1 dump of the ndi feed into a file right?

Unable to install 4.0

Par Footballer
I have used NDI tools for several years now and I have never had a problem installing any version. 4.0 is making me a little crazy. I have installed and deleted this several times, restarted computer several times. Upgraded nVidia drivers to the latest.

After installing I can click on the app and it looks like it is trying to start with a small spinning circle which disappears after a few seconds. Task manager shows nothing is happening. Windows 10 Geforce 1060

I would be grateful for any suggestions to try?

VLC SyncPlay and Tools 3.8

Par SteveRother
a while back you gave us SyncPlay, an icon on desktop and you could just drop the files into it and they would play repeatedly. Really awesome! I updated VLC to 3.0.8 and I lost everything. I reinstalled Tools Version 3.8 and although it does play it will only play once. I have the player set to repeat but what happens is that the video turns to a green screen after one playing but the audio still gets through. The video is still playing in the player but it greenon the screen. I went to put back the older versions but found a strange thing. I have two versions or Tools 3.8. They are different sizes. I am confused now. Help is appreciated.

NDI Camera for iPhone

Par mannye2003
Has anyone's camera drained when using the app? I can be at full charge and use the app for 5 minutes and the battery drains to about 25%...

Panasonic HN-130 best camera settings for NDI to Tricaster 1080 project

Par DStoneburner
I just got 3 new HN-130 cameras. I stream a lot of events and it's preferred to stream 1080 30p from my Tricaster 8000, so I run 1080 projects, which should be 1080i. I have a TP-Link recommended switch. I'm just trying to figure out the best settings for the cameras. Originally I was 1080 59.94 but I started to get stuttering, so I changed to 29.97p, which seemed to be smoother on camera movements. Anybody have any suggestions for settings on the camera and maybe the switch? Thank you in advance.

Install NDI Runtime silently

Par sendframe
Hi everyone,

I would like to install the NDI Runtime silently but the standard InstallShield options don't seem to work. Any suggestions?

Many thanks!

NDI PTZO cameras with Tricaster Mini

Par davidcbny
While we've used a Tricaster system for many years, I'm somewhat new to the NDI realm.

We have a new Tricaster Mini and PTZO NDI cameras. All firmware is updated. My TC Mini is set for HD (59.94), and so are the cameras (option B). Everything is ethernet (power, control, video). I get jittery video with any significant movement by the camera or object. Anything I should try? Thanks all. David

Isocorder Free No Audio Monitoring

Par inosit

Recently I installed IsoCorder Free on my pc to test with recording via NDI. The program works totally fine, but I don't hear any audio whilst it does record the audio.
Is there anything I've missed or can try so that the audio monitoring does work?



NDI plugin for OBS

Par draftpunk
I have a question about lan connection between two PC for streaming.
I made giga lan connection and when i stream 2k video on youtube using second PC there is variable lan load, that cause some quality problems on video stream.
There is separate LAN between PC with two giga network cards only for OBS.
So, question sounds like this:
Can I make a connection between two clients OBS with NDI plugins constant?
Now i see LAN load 40-200 mbit/s, but can i make constant 200 or 300 mbit/s between thoose OBS clients to improve video quality?
Can somebody help me with this?

Jailing NDI to only use one NIC

Par spechacek
Is there a way to make it so that an NDI app can only use one NIC for transmitting?

I have a system with 3 active NIC's for different purposes (media transfer, control/service, streaming/etc) and the NIC that gets used isn't the one that I need it to work on.

All three NIC's use a different IP range and are hooked up to different switches as well.

According to the NDIAnalysis tool (along with studio monitor) it shows which NIC is being used, but it isn't the one that I need it to use.

Any help would be greatly appreciated!

Virtual Input not visible in StarLeaf

Par RichardGatarski
Seems that the StarLeaf app v3.6.33 (video conference system) does not show anything if "Newtek NDI Video" (latest 3.8) is selected as Camera. Checked that it works just fine with Skype.
Guess it's an issue with StarLeaf, what should I ask their support in an attempt to have them fix it?

NDI Impressions from the Panasonic AG-CX350?

Par MaxMattingly
Hi, currently looking at the Panasonic AG-CX350 and wondering if anyone here has any experience with using the built in NDI on this camera? Seems like a very attractive feature to have, in addition to the fact that the HDMI and the SDI can output simultaneously (among other stuff).

Would love your thoughts on the NDI implementation (as well as the camera in general!). We use a TC1 in studio but would also probably use the camera for mobile streaming/shoots via OBS.


NDI - Visual Artefacts

Par Jent
Hello everyone!

This is more or less a copy-paste of a reddit post I made. Hopefully someone here will be able to shed some light.

I'm attempting to use NDI to send a capture of a computer game from one computer to another. The computer running a game is using OBS with the OBS-NDI plugin (I've also attempted to use NDI Scan Converter with the same result). The scene and output resolution match each other, and have been tested at 3840x2160 and 1920x1080, both at 60 FPS. NDI is used in non-low bandwidth mode. The gaming computer is connected to a networking switch over 40 Gbps. The receiving computer is also connected over 40 Gbps. They're in close proximity to each other with a couple of hundred microseconds of latency at most, within the same subnet. The highest bitrate that I've seen using a feed that is virtually impossible to efficiently compress (random colored noise, high entropy) was around 380 Mbps.

Regardless if the NDI output is received and viewed locally on the "gaming" computer, or on the receiving computer over the network, very noticeable compression artefacts can be seen, both banding and microblocking. This is an issue I've had with NDI since I started testing it about a year and a half ago. Despite searching around, it seems there hasn't been a lot of research into what NDI actually does to the source, visually.

If someone is sitting on more knowledge than readily available, perhaps a way to force NDI to not be so aggressive on saving bitrate, do tell.

I can add some images to show the issue. If the interest is here, I can put several of them in an archive and upload to a file service.

TC1 and NDI Output

Should the TC-1 always output a NDI video stream on the network? I don't see it listed with Studio Monitor.

Laptop NDI issues

Par frank.leggett

I have been having a lot of trouble with NDI when I connect up my ASUS ROG i7 Laptop. I have the laptop connected to a simple Ubquitii Edgeswitch 8 and I also for test purposes have an i7 Desktop connected to the switch. I am playing 2 video files using VMix on both. I have run NDI analysis and this is the results.

1: name="ASUS-VIDEO-LAPTOP (vMix - Output 1)"
2: name="BUSINESS (vMix - Output 1)"

As you can see the Laptop output is stating it is a NDI/HX source but how is this possible. Below are the source readings for both NDI streams:
Laptop Stream
10:20:15.723: Video receiver creation succeeded.
10:20:15.723: Audio receiver creation succeeded.
10:20:23.730: Video connection opened.
10:20:23.733: Audio connection opened.
10:20:23.737: Tally program=false preview=true
10:20:23.737: Product, Long name=vMix 4K - x64
10:20:23.737: Product, Short name=vMix
10:20:23.738: Product, Model=4K
10:20:23.738: Product, Manufacturer=vMix
10:20:23.738: Product, Version=
10:20:23.739: Audio format changed. 48000Hz, 2 channels.
10:20:23.763: Video format changed. 1920x1080, progressive, aspect ratio=1.78, frame-rate=50.00, no alpha channel.
10:20:25.739: Video data rate (MBps). Avg=129.23
10:20:25.739: Video size (kB). Min=277.90 Avg=310.10 +/- 23.93 Max=359.46
10:20:25.740: Video recv (mS). Min=10.22 Avg=20.00 +/- 3.91 Max=30.93
10:20:25.740: Video send (mS). Min=17.77 Avg=20.00 +/- 0.87 Max=21.98
10:20:25.741: Audio data rate (MBps). Avg=0.00
10:20:25.741: Audio size (kB). Min=0.00 Avg=0.00 +/- 0.00 Max=0.00
10:20:25.741: Audio recv (mS). Min=12.95 Avg=20.01 +/- 2.86 Max=26.99
10:20:25.742: Audio send (mS). Min=19.45 Avg=20.00 +/- 0.28 Max=20.99
10:20:25.744: Video receiver destroyed.
10:20:25.761: Audio receiver destroyed.

Desktop Stream
10:21:31.626: Video receiver creation succeeded.
10:21:31.626: Audio receiver creation succeeded.
10:21:39.630: Video connection opened.
10:21:39.631: Audio connection opened.
10:21:39.632: Product, Long name=vMix 4K - x64
10:21:39.632: Product, Short name=vMix
10:21:39.633: Product, Model=4K
10:21:39.633: Product, Manufacturer=vMix
10:21:39.635: Product, Version=
10:21:39.643: Audio format changed. 48000Hz, 2 channels.
10:21:40.670: Video format changed. 1920x1080, progressive, aspect ratio=1.78, frame-rate=50.00, no alpha channel.
10:21:41.642: Video data rate (MBps). Avg=99.22
10:21:41.642: Video size (kB). Min=232.73 Avg=245.77 +/- 8.79 Max=277.08
10:21:41.643: Video recv (mS). Min=16.04 Avg=20.01 +/- 1.92 Max=24.64
10:21:41.644: Video send (mS). Min=16.32 Avg=20.02 +/- 1.85 Max=23.62
10:21:41.644: Audio data rate (MBps). Avg=1.54
10:21:41.644: Audio size (kB). Min=3.85 Avg=3.85 +/- 0.00 Max=3.85
10:21:41.644: Audio recv (mS). Min=18.63 Avg=20.00 +/- 0.54 Max=21.44
10:21:41.645: Audio send (mS). Min=18.79 Avg=20.00 +/- 0.51 Max=21.18
10:21:41.646: Video receiver destroyed.
10:21:41.653: Audio receiver destroyed.

Can anyone shed any light on this. The problems I have is as soon as I plug the laptop into the workflow NDI traffic between sources on my network breakdown, lose connection or just have framehold issues. The laptop is using a Thunderbolt 3 dock with a 1Gb Lan socket.

NDI issues with TC1

Par Muzzman
TC1 has serious issues with NDI inputs through the switcher to Line.
Link shows the issues easily.

NDI streams viewed within Studio Monitor Tools 3.8 are okay but through the TC1 the problem is evident. See Time mark of 29sec.
The TC1 has latest F/W as well as the NC1 I/O. Updated GFX driver as well as NDI Tools 3.8 on each device.
The video made above was with current operational network. Bandwidth required is suitable, as Studio cameras are 2160 50p into NC1 with TC1 Session setup as a 1080 50p Session.
The severe picture breakup occurs easily through the PTZ camera and disappears when NDI sources are not to Line or P/V (obviously) or Studio cameras brought in to TC1 via SDI instead.
The NDI output of Studio cameras show evidence through the TC1 as picture output having 'dropped frames' which is evident when there is movement ie, Pan.
Checked system with another local 1Gb switch with TC1 and NC1 connected. Problem is still evident.
CCU setup can output Quadlink for NC1 as well as 1080 50p in SDI format.
Need to resolve into why the NDI is failing as SDI is our fall back mode.
Any solutions to why this is being experienced would be appreciated?

NDI network issues

Par tominmelb
Hi Community,

We have migrated our NDI hardware to a new dedicated HP/Aruba 40Gb/s network.

However, using Studio (PC) or Video Monitor (Mac) to view the two NDI streams we have placed on the network for testing, each receiving device will only work once before simply showing black.

Looking at the network traffic/packets the receiving devices are still being sent NDI traffic, they just won’t display it.

There are no routing rules or port restrictions etc on this network, each device is in the same fixed IP range. Each device has nothing set in access manager.

Any ideas?


Airsend Updater

Par Rojan
Trying to download Airsend Updater (to use with Caspar CG) but when I click the download button on I am sent to where I am only able to download NDI Tools. Or is there something I am missing? :screwy:

Bus error on raspi

Par aeris
Hi here!

I try to use a raspi 3 running under Raspbian Buster 10.0 to encode an NDI stream.

I download and install the 3.8 NDI SDK.
I compile ffmpeg 4.1.3 with

./configure --extra-cflags="-I/usr/include/ndi" --enable-gpl --enable-nonfree --enable-libndi_newtek --enable-libx264 --enable-omx --enable-omx-rpi --enable-libx265 --enable-mmal
List NDI source works perfectly :

./ffmpeg -f libndi_newtek -find_sources 1 -i dummy
ffmpeg version n4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 8 (Raspbian 8.3.0-6+rpi1)
  configuration: --extra-cflags=-I/usr/include/ndi --enable-gpl --enable-nonfree --enable-libndi_newtek --enable-libx264 --enable-omx --enable-omx-rpi --enable-libx265 --enable-mmal
  libavutil      56. 22.100 / 56. 22.100
  libavcodec    58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter    7. 40.101 /  7. 40.101
  libswscale      5.  3.100 /  5.  3.100
  libswresample  3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
[libndi_newtek @ 0x1b58930] Found 1 NDI sources:
[libndi_newtek @ 0x1b58930]    'ENDOR (OBS)'  ''
dummy: Immediate exit requested

But when I want to access the NDI stream, it fails with a

Bus error

./ffprobe  -f libndi_newtek -i "ENDOR (OBS)"
ffprobe version n4.1.3 Copyright (c) 2007-2019 the FFmpeg developers
  built with gcc 8 (Raspbian 8.3.0-6+rpi1)
  configuration: --extra-cflags=-I/usr/include/ndi --enable-gpl --enable-nonfree --enable-libndi_newtek --enable-libx264 --enable-omx --enable-omx-rpi --enable-libx265 --enable-mmal
  libavutil      56. 22.100 / 56. 22.100
  libavcodec    58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter    7. 40.101 /  7. 40.101
  libswscale      5.  3.100 /  5.  3.100
  libswresample  3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
Bus error


./ffmpeg -f libndi_newtek -i "ENDOR (OBS)" -c:av copy foo.ts
ffmpeg version n4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 8 (Raspbian 8.3.0-6+rpi1)
  configuration: --extra-cflags=-I/usr/include/ndi --enable-gpl --enable-nonfree --enable-libndi_newtek --enable-libx264 --enable-omx --enable-omx-rpi --enable-libx265 --enable-mmal
  libavutil      56. 22.100 / 56. 22.100
  libavcodec    58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter    7. 40.101 /  7. 40.101
  libswscale      5.  3.100 /  5.  3.100
  libswresample  3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
Bus error

I see some (quite old) posts here saying NDI receving is currently not supported on raspi.
So, what the NDI status on this hardware?

Premiere Pro Stalls on launch - reports loading NDI

Par mjgraves
This afternoon I'm editing some video on my vMix system I notice that when I launch Premiere Pro 2019 it stalls for several minutes displaying a screen that reports "Loading Newtek_NDI_transmit.prm." And idea what's up with that?

NDI Scan Converter Issue

Par TsiSport
Scan Converter open in taskbar but when I go to change any option it closes as soon as I hover the mouse over the icon, This also happens if I goto show hidden icons. I am not getting any image in Studio Monitor just a blank black screen even though I can switch to different monitor sources on my GTX 1080 ti. I can display test patterns.
I have been using this setup flawlessly for some time this is a recent issue