.NOV file editor
Answered
Hi team
We are using NxWitness in an educational environment and our client want to utilise/edit various clips from their Linux NxW server. They wish to present a summary of works over the year with their clients. Has anyone seen/used a video/audio editor that works well with .NOV or .MKR files? or are we best to transcode to .AVI? They are just piecing clips together without any overlays.
Thanks
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Hi Glen Hathaway,
That sounds like an interesting use case? Can you tell us more how you use our system for education?
Regarding your question. The .nov format is a proprietary format and can only be opened in our client. You can download the Nx Witness client to make a selection of the exported .nov file and export it in common format like .avi, .mkv, or .mp4.
More details about exporting footage can be read in THIS support article.
For real editing, the file format has to be .avi, .mkv or .mp4. My preferred video editing tool is Kdenlive, which is a free and open source application, which can be used on any platform and the options are endless and there are many online resources that provide instructions. One in particular I can recommend is THIS resource.
Piecing clips together is a piece-of-cake with such applications, drag and drop the clips to the resources. Drag and drop the clips to the timeline of the video editor, crop them where required, shove them together, and render the entire video in the preferred format, where .mp4 is the most common format to publish is somewhere or play it anywhere.
If they want to do a screen recording, our Windows client has a built-in screen recorder, which they can start/stop with Alt+R. For macOS or Linux systems, OBS Studio is my preferred tool. This can also be used to set up live streams to media like, Facebook, YouTube, Twitch, etc.
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Thanks Norman for your prompt reply
It has been a while since Ive looked at commonly video editing options was particularly interested if there is a native .nov option due and not having to transcode... I appreciate the leads attached, and will follow them up.
My client works in the important needs educational space and the ability to record high volumes of quality video and excellent audio, etc, drew me to NxW. Data must be stored long term. For many of these special people - progress is charted over a long term. We have pro mics embedding equ'd audio into 6MP security cameras. Have found recently staff need to produce more than just isolated clips to update their interested parties. Cant say too much more in Public forum.
Cheers
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Hi Glen Hathaway,
I was assuming when you said educational, students supposed to piece the clips together.
In such case, a video editor would be the most useful application.
For your purpose, I would consider creating a script, that lists all files in a particular folder to a text file, and with this list concatenate all video files to a single folder with FFmpeg.
Something like this:
#!/bin/bash
# create a text file
for filename in pieces/*.mp4; do
echo "file $filename" >> concat-list.txt
done
# merge the files in the txt list to a single file
ffmpeg -f concat -i concat-list.txt merged.mp4
# optional
echo "Concatenated videos list:"
cat concat-list.txt
rm concat-list.txt
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