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NDI MultiCorder problem - Can not record NDI inputs
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Bikeroo  
#1 Posted : Friday, October 30, 2020 9:58:02 PM(UTC)
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Hello broadcasters,

I streaming online conferences with few callers via MS Teams using NDI inputs.

All works perfect but I would like to record my caller's NDI inputs via MultiCorder option.

Unfortunately it dosen't work good.

When I finish recording, in Multicorder source folder I have a lot of files, few seconds each. For example record from 1 caller (NDI input) exists as many short files (see on picture):
https://drive.google.com...iZ5_OFm/view?usp=sharing

Do you have the same problems?
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mavik  
#2 Posted : Friday, October 30, 2020 11:53:36 PM(UTC)
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That is common. You could wil have better results if you assign a caller per output and multicord the output instead of the input. Another option is to enable the NDI output per source and record the NDI somewhere else in the network.
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Bikeroo  
#3 Posted : Wednesday, November 4, 2020 10:01:46 PM(UTC)
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thank you mavik for feedback.

How can I set this second option which you mention about? I mean, how to enable NDI per source?

I have trying to assing caller per output and it's work great but the problem is, that I have only 3 outputs which I can use this way (output nr 2,3,4 because 1 is for main view with all callers).
I have to record 5 callers so I don't have enought outputs to use this option.
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mavik  
#4 Posted : Sunday, November 8, 2020 1:27:28 AM(UTC)
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You can enable it under settings -> Outputs/NDI/SRT
Additional NDI Outputs -> NDI ON
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scalerious  
#5 Posted : Monday, December 7, 2020 1:27:25 PM(UTC)
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I am trying to do something similar. If i'm not mistaken, the reason you are getting multiple files is because the calls are changing frame rates. Vmix stops the record and restarts is every time the call changes frame rates. This is annoying.

I am trying to find a renderer that can capture the ndi source and render it as 1 file (similar to Vmix's output function)

The problem I have is, Vmix only has 4 outputs. I often produce shows with 8 callers and am unable to properly record their isos.

My untested solution so far is to buy another computer and run Newtek's Isocorder OR install the Blackmagic Decklink with 8 sdi's on the new computer and use a program called ndi2sdi by a company called medialooks that seems to be able to send 8 ndi sources to each of the sdi ports...then record the isos in a hyperdeck or similar recorder.

If anyone has any experience with getting 8 calls out of vmix to record iso or use in an ATEM please let me know.

thanks
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