Recorded Zoom files

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MikeA
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Recorded Zoom files

Post by MikeA »

I am working for a group in using videos recorded during Zoom sessions, editing them a little, and then publishing them to YouTube. I have found that VideoStudio 2020 does not like the files that Zoom produces. It locks up when adding them to the library or when rendering. They are 1920x1080 files with data rate=446kbps, total bitrate=572kbps and 25 frames per second. To be able to proceed I have used a video converter program to make wmv files. The reason for this was to get the same format I wanted to upload to YouTube (fairly small in terms of bytes). I thought it would be the fastest way to process and upload if both were wmv. The wmv format is: 1280x720, data rate=1959 kbps, bitrate=2023 kbps and 30 frames per second. These work fine but the rendering is terribly long. My last 2 hour movie took about 9 hours to render. I should say that I render a file and then manually upload it. Any ideas on how I can speed things up? Thanks.
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Re: Recorded Zoom files

Post by tletter »

MikeA wrote:Any ideas on how I can speed things up?
  1. Your profile doesn't list your CPU, but as your listed GPU dates from 2010, part of your problem could be an underpowered CPU.
  2. Allow VS to match the video's properties.
  3. If you have to convert clips then don't convert to a higher data rate, e.g. converting from 'data rate=446kbps' to 'data rate=1959 kbps'. Note that your conversion has downgraded a FHD to an HD clip.
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Re: Recorded Zoom files

Post by cybernick »

We are using zoom recordings also. If you record directly from zoom it should give 720p video. Also be sure that you select the "3rd party friendly recording" in the recoding settings of zoom.
Coming to mp4 files. I suggest to install klite code. But still I am converting to VMW before editing. VS2020 output and editing in VMW is way better then mp4.
Also the audio in mp4 sometimes makes glitches. Therefore I also receive the separate audio and convert to WAV. After that I add to the video.
MikeA
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Re: Recorded Zoom files

Post by MikeA »

In reply to tletter: Thanks. My CPU is 3.60 Ghz with 14 Gb of memory on a 64 bit system. I thought that was pretty good. Am I wrong? How do I allow Vs to match the video's properties. Is that in Share? I tried it and the speed was the same. I have to convert because VS freezes with the original video. Each original video I have has different data rates and these don't match the choices that VS provides. I could convert to a data rate that is close to the original value. Would that be better? Lastly, I am sending the final versions to YouTube. I thought the highest resolution there was 1280x720.

In reply to cybernick. The videos I get from the person who runs the Zoom are 1920x1080 MP4 files.
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Re: Recorded Zoom files

Post by asik1 »

Mike, something wrong here, I also did few zooms trimming project but it never took more than about play time to render. Do you apply any FX or corrections?

**Unfortunately I do not have any files here to check as I delete them once they went to youtube.
Last edited by asik1 on Sat Jan 30, 2021 6:54 pm, edited 1 time in total.
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Re: Recorded Zoom files

Post by cybernick »

MikeA wrote: Sat Jan 30, 2021 6:47 pm In reply to tletter: Thanks. My CPU is 3.60 Ghz with 14 Gb of memory on a 64 bit system. I thought that was pretty good. Am I wrong? How do I allow Vs to match the video's properties. Is that in Share? I tried it and the speed was the same. I have to convert because VS freezes with the original video. Each original video I have has different data rates and these don't match the choices that VS provides. I could convert to a data rate that is close to the original value. Would that be better? Lastly, I am sending the final versions to YouTube. I thought the highest resolution there was 1280x720.

In reply to cybernick. The videos I get from the person who runs the Zoom are 1920x1080 MP4 files.
Really strange. I would suggest to ask him/her how it is recorded. Because the default recording of Zoom is 720p.
tletter
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Re: Recorded Zoom files

Post by tletter »

MikeA wrote:I thought the highest resolution there was 1280x720.
YT's recommended resolution with a 16:9 aspect ratios are:
  • 2160p: 3840x2160
  • 1440p: 2560x1440
  • 1080p: 1920x1080
  • 720p: 1280x720
  • 480p: 854x480
  • 360p: 640x360
  • 240p: 426x240
MikeA wrote: with 14 Gb of memory on a 64 bit system. I thought that was pretty good. Am I wrong?
It depends. What is the actual CPU, e.g. Intel Pentium Processor G3470?
MikeA wrote:How do I allow Vs to match the video's properties. Is that in Share?
No. Start a new project with "Show message when inserting first video clip into the Timeline" enabled.
MikeA wrote:I could convert to a data rate that is close to the original value. Would that be better?
During conversion, you increased the data rate from 'data rate=446kbps' to 'data rate=1959 kbps' which will increase the rendering time without increasing the quality.

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Re: Recorded Zoom files

Post by cywol »

MikeA wrote: Sat Jan 30, 2021 2:18 pm I have found that VideoStudio 2020 does not like the files that Zoom produces. It locks up when adding them to the library or when rendering.
I feel I missed an earlier part of the story. Why should VS 2020 freeze every time it gets an mp4 from Zoom? Has anyone looked at why and asked to get it fixed? Patience very low as I have a 90 minute Zoom conference to edit with a likely edit and render time of several hours. It's 10:27pm and I still haven't got it to read the Zoom file. Currently in the middle of long conversion to wmv and looking for answers as to why I got to have such a bad day.
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Re: Recorded Zoom files

Post by Candive »

cywol wrote: Fri Feb 19, 2021 11:32 pm
MikeA wrote: Sat Jan 30, 2021 2:18 pm I have found that VideoStudio 2020 does not like the files that Zoom produces. It locks up when adding them to the library or when rendering.
I feel I missed an earlier part of the story. Why should VS 2020 freeze every time it gets an mp4 from Zoom? Has anyone looked at why and asked to get it fixed? Patience very low as I have a 90 minute Zoom conference to edit with a likely edit and render time of several hours. It's 10:27pm and I still haven't got it to read the Zoom file. Currently in the middle of long conversion to wmv and looking for answers as to why I got to have such a bad day.
cywol,
As a simple test; start a new zoom meeting with just yourself, record for 10 seconds. Stop recording. Try and import the clip into VS. I conducted this test and it worked! What are your video settings and recording settings?
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Re: Recorded Zoom files

Post by baseheadtx »

cywol wrote: Fri Feb 19, 2021 11:32 pm
MikeA wrote: Sat Jan 30, 2021 2:18 pm I have found that VideoStudio 2020 does not like the files that Zoom produces. It locks up when adding them to the library or when rendering.
I feel I missed an earlier part of the story. Why should VS 2020 freeze every time it gets an mp4 from Zoom? Has anyone looked at why and asked to get it fixed? Patience very low as I have a 90 minute Zoom conference to edit with a likely edit and render time of several hours. It's 10:27pm and I still haven't got it to read the Zoom file. Currently in the middle of long conversion to wmv and looking for answers as to why I got to have such a bad day.
I am having the same issue. I try try to import a zoom file (I have several) into the application, and it just freezes. Doesn't matter how long I wait. Funny thing is I didn't have this problem with a Zoom file I used from October. The Zoom files I am trying to use now are from this month.

I have tried dragging and dropping the file into the timeline, and I have used the menu to try to import the file. None work with these Zoom files from March. The files are fine cause I ended up just editing them on my Samsung Note 20 without issue.
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Re: Recorded Zoom files

Post by asik1 »

I have here 2 zooms... both loads and play well in VS2021
Attachments
zoom2.jpg
zoom1.jpg
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cybernick
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Re: Recorded Zoom files

Post by cybernick »

One side note here. Please be sure that in sure you have marked the following setting in Zoom recording settings.
Also can you please tell me how it is possible to record in 1080p in zoom. Zoom records only 720p . Do you/they use an external recorder like OBS etc.?
Attachments
zoom.JPG
rwernyei
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Re: Recorded Zoom files

Post by rwernyei »

My experience with Zoom recordings is that it tries to optimize the recording based on one's screen resolution. I have an Acer Nitro 5 laptop with native Display resolution 1920x1080 and overclocked Refresh rate of 101 Hz.

Try this:
Test 1: Record 10-15 secords and stop recording. Look at your Zoom mp4 properties: 1280x720, 1804 kbps, 1936kbps, 25 fps, 132kbps 1(mono) 32 kHz
Test 2: Record webcam image for 10 secords or so and now share your screen moving your cursor on the screen for a couple of seconds, now stop sharing and stop recording. Check your new Zoom mp4 properties: 1920x1080, 1804 kbps, 1936kbps, 25 fps, 132kbps 1(mono) 32 kHz
Test 3: Zoom settings in the above screenshot under Recording if you check Record video during screen sharing and also check Place video next to the shared screen in the recording you will get an entirely different resolution using the same procedure in Test 2. After recording and sharing screen you will end up with a mp4 with properties: 2200x1080, 1804 kbps, 1936kbps, 25 fps, 132kbps 1(mono) 32 kHz

Personally, discovering this glitch I use the Test 2 method for all my recordings. Meetings with several participants with screen share privileges throughout the recording I still share my screen for a couple of seconds, stop share and then stop recording to ensure my ending mp4 resolution will be 1920x1080. I find this method has always delivered. Hope this helps.

Also I find FFmpeg does the best at making simple cuts to my Zoom recordings based on start and end times in seconds. Example: 3 hour video, I trim the last 10 seconds off. I use a script like: ffmpeg -i D:\Z\zoom_0.mp4 -ss 00:00:00 -to 02:59:50 -c copy output.mp4

Z represents the name of the folder where I store my mp4 after my Zoom recording. The above script takes Smart Rendering to a whole new level. Encodes an exact copy with edit in less than 15 seconds!
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Re: Recorded Zoom files

Post by asik1 »

For simple trim you can use YouTube trimer,
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rwernyei
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Re: Recorded Zoom files

Post by rwernyei »

asik1,
YouTube trimmer requires YouTube ID or Url. I guess your advice would be helpful for those trimming YouTube videos?
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