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xtc99
Inspiring
April 18, 2021
Question

Premiere Elements Timestretch wants to use -3.23% if I type in the percent field

  • April 18, 2021
  • 2 replies
  • 342 views

I captured 11 hours of video from one of my security cameras with playback set to 16x realtime. I used the XBOX screen capture app. The resulting video was 45 minutes. I wanted to compress it to about 2 minutes so I tried using Clip > Timestretch and was going to type 2000 percent. But as soon as I type the 2, the Speed field changes from 100% to -3.23%. It shows two more zeros because I then types two zeros after the 2, hoping that would overwite the -3.23 but it did not. Please see screenshots below. The capture I did is .mp4 format. I have used time stretch before in Premiere Elements 2021 to speed up video I shot with my drone and that is also .mp4 format so I don't know what is going on. The only difference is that I used the CROP effect to crop the video frame first.

Thanks,

Don

 

This topic has been closed for replies.

2 replies

B
Community Expert
Bill SpragueCommunity Expert
Community Expert
April 19, 2021

'Frame rate mode : Variable'

 

Try getting that changed to fixed or constant with the (free) program Handbrake.  It may then work.   

S
Steve Grisetti
Legend
April 20, 2021

Here are step by step instructions for creating editable videos in Handbrake.

 

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    xtc99Author
    Inspiring
    April 30, 2021

    Sorry for the delay in replying. While waiting I opened the file in VLC and played it at a slower speed and captured that again using the XBOX app. I had to do this twice but I ended up getting what I wanted. My spouse wanted to see how the sun changes from morning until evening at a location where she wanted to put a garden and what I made was good enough for her purposes. If I were going to publish something I would have gone ahead with the suggestion made here.

     

    Thanks for all the suggestions,

    Don

    B
    Community Expert
    Bill SpragueCommunity Expert
    Community Expert
    April 18, 2021

    Premiere Elements does not seem to try to be capable of all codecs that might be inside of an "container" file like .MP4.   Screen capture programs can be among the worst because variable frame rates or other techniques are used.    

     

    I checked and the time stretch tool on my computer accepted typing 2000%.  So my guess is that something unique is in your file causing your's to work differently.  Again, because mine works, I am only guessing.   

     

    You might try creating a more standard file with the (free) Handbrake conversion program.  

      S
      Steve Grisetti
      Legend
      April 18, 2021

      My thoughts exactly. Security camera by way of Xbox is probably not producing a traditional AVC codec.

       

      xtc, open your video in the free download MediaInfo. In MediaInfo, set View to Text and then copy the text of this report and paste it to this forum. Once we see this complete report, we can recommend some possible solutions.

      X
      xtc99Author
      Inspiring
      April 19, 2021

      Steve, Here you go.
      Thanks for the help.
      Don

      General
      Complete name : C:\Users\Don\Videos\Captures\ACMS 2021-04-18 10-26-04.mp4
      Format : MPEG-4
      Format profile : Base Media / Version 2
      Codec ID : mp42 (mp41/isom)
      File size : 3.26 GiB
      Duration : 46 min 27 s
      Overall bit rate mode : Constant
      Overall bit rate : 10.0 Mb/s
      Movie name : ACMS
      Performer : Microsoft Game DVR
      Encoded date : UTC 2021-04-18 18:12:32
      Tagged date : UTC 2021-04-18 18:12:32

      Video
      ID : 1
      Format : AVC
      Format/Info : Advanced Video Codec
      Format profile : Main@L4.1
      Format settings : CABAC / 2 Ref Frames
      Format settings, CABAC : Yes
      Format settings, Reference frames : 2 frames
      Codec ID : avc1
      Codec ID/Info : Advanced Video Coding
      Duration : 46 min 27 s
      Source duration : 46 min 27 s
      Bit rate mode : Constant
      Bit rate : 9 984 kb/s
      Width : 1 920 pixels
      Height : 1 040 pixels
      Display aspect ratio : 1.85:1
      Frame rate mode : Variable
      Frame rate : 29.904 FPS
      Minimum frame rate : 6.665 FPS
      Maximum frame rate : 144.231 FPS
      Original frame rate : 29.970 (30000/1001) FPS
      Color space : YUV
      Chroma subsampling : 4:2:0
      Bit depth : 8 bits
      Scan type : Progressive
      Bits/(Pixel*Frame) : 0.167
      Stream size : 3.23 GiB (99%)
      Source stream size : 3.23 GiB (99%)
      Encoded date : UTC 2021-04-18 18:12:32
      Tagged date : UTC 2021-04-18 18:12:32
      mdhd_Duration : 2787586
      Codec configuration box : avcC

      Audio
      ID : 2
      Format : AAC LC
      Format/Info : Advanced Audio Codec Low Complexity
      Codec ID : mp4a-40-2
      Duration : 46 min 27 s
      Bit rate mode : Constant
      Bit rate : 79.9 kb/s
      Nominal bit rate : 128 kb/s
      Channel(s) : 2 channels
      Channel layout : L R
      Sampling rate : 48.0 kHz
      Frame rate : 46.875 FPS (1024 SPF)
      Compression mode : Lossy
      Stream size : 26.5 MiB (1%)
      Encoded date : UTC 2021-04-18 18:12:32
      Tagged date : UTC 2021-04-18 18:12:32
      mdhd_Duration : 2787581

       

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