Page 1 of 3 123 LastLast
Results 1 to 10 of 21

Thread: Editing Videos Down To The Millisecond.

  1. Default Editing Videos Down To The Millisecond.

    Hello,

    My name is Patrick and I am currently conducting Psychology research at The City University of New York.

    The research I am creating is designed to test the effects of subliminal messaging. I need to know how to insert images into a video. The images must be displayed at 10 milliseconds.

    Does anyone know of video-editing software that can edit videos down to the millisecond?

    I am using a Mac OSX 10.9.5.
    I have tried:
    Final Cut Pro
    Avidemux
    IMovie

    None of these could do what I needed.
    Thank you, Please respond.
    Dao

  2. #2
    Join Date
    Feb 2006
    Location
    Surrey, UK
    Posts
    10,849
    Blog Entries
    1

    Default

    You would need not only some specialist video editing software, but some specialist playback system.
    See here:
    http://www.consumerscout.co.uk/Impor...fresh_rate.htm
    Tim

  3. #3

    Default

    Quote Originally Posted by TheDaoDoughnut View Post

    I need to know how to insert images into a video. The images must be displayed at 10 milliseconds.

    Does anyone know of video-editing software that can edit videos down to the millisecond?
    As Tim has already suggested, 'down to the millisecond' is pretty specialised...

    However, if you can accepted 16mS instead of 10mS then you are in the realms of 'normal' video editing. As you are US based, record your video at 60fps. Most modern camcorders can record at 60fps, but to a highly compressed format that is not easy to edit natively with frame accuracy. There are however ways of dealing with this.

    Take your 60fps footage and convert it to an 'intraframe' format. The 2 candidates that spring to mind are Grass Valley HQX and Cineform HD.

    You will need to register with a Grass Valley account (see here: http://www.grassvalley.com/auth?r=%2...ads%2Fproducts ) to download the Mac version of the codec. To get the Cineform codec download the Go Pro Studio app: http://shop.gopro.com/EMEA/softwarea...ro-Studio.html )

    Both these codecs are free.

    Once you have your video in a 60fps intraframe format you can introduce a single frame (of 16mS duration) accurately where ever you need to. The free video editor Virtualdub will allow yuo to export your Cineform or Grass Valley HQX video as an image sequence, to which you can add your single frame, and re-convert to a video file...

    However, 10mS would require a higher frame rate..... a bit more specialised, as Tim suggests...
    Last edited by rogs; 11-10-2014 at 12:44 AM.

  4. Default

    Thank you both for answering so quickly!

    I should have specified; I want to overlap an image onto an existing video. I do not need to discontinue the film for any amount of time. I just need to overlap an image for 10 milliseconds (16 might also work but I would need to try it).

    Please let me know if this changes anything. If not, I will do as you suggested.

    Thank you,
    Dao
    Last edited by TheDaoDoughnut; 11-10-2014 at 01:24 AM.

  5. #5

    Default

    No matter if you are inserting or overlaying an image you are still stuck with frames. Probably really give the link Tim posted a read. You can go down to 8 ms when you record at 120 fps but you would also need a system that can play the video at such a high framerate without dropping frames.

  6. #6

    Default

    Quote Originally Posted by TheDaoDoughnut View Post
    I should have specified; I want to overlap an image onto an existing video. I do not need to discontinue the film for any amount of time. I just need to overlap an image for 10 milliseconds (16 might also work but I would need to try it).
    By 'overlap' I take it you mean 'overlay' ?........ You have two choices when it comes to adding a single frame of video (16mS) . You can either cut the sequence at a specific point and add a single frmae, or you can 'mix' the new frame with one of the existing footage frames.
    Any NLE editor will allow either.... or you could so it for free using Virtuadub and AviSynth (both powerful free programs... but with a bit of a learning curve!)

    Whatever method you decide on, the process will be a lot simpler - and more accurate - if you work with 'intraframe' footage, rather than trying to work with the compressed footage from the camera.

    If you do need to go even faster, then the higher frame rates mentioned by the others will require a more specialised approach.
    Last edited by rogs; 11-10-2014 at 10:43 AM.

  7. Default

    Quote Originally Posted by TimStannard View Post
    You would need not only some specialist video editing software, but some specialist playback system.
    See here:
    http://www.consumerscout.co.uk/Impor...fresh_rate.htm
    I made a test video using Adobe Premier Pro CS6 (Free Trial). The video is here: https://www.youtube.com/watch?v=XNtX...ature=youtu.be

    I set the frame rate to 59.94 frames per second. I inserted the desired image in 1 frame and masked it before and after it appeared. The frame rate was, however, not high enough. (You can see the image flicker.)

    Of the programs you mentioned, do you know of any that can achieve a higher frame rate? I have access to money via a research stipend and a variety of playback equipment.

    Thank you all again for the suggestions!

  8. Default

    if I understand correctly, I need:
    1. Video editing software that can edit at around 100+ frames per second. (To account for Frame rate)
    2. A playback system with a comparable amount of Htz. (To account for refresh rate)

  9. Default

    Can someone please respond to my above posts?

    Thank you!
    Dao

  10. #10

    Default

    You understand correctly

Page 1 of 3 123 LastLast

Similar Threads

  1. Editing two videos in one
    By Gambosaka in forum General video editing software help and advice
    Replies: 1
    Last Post: 10-15-2013, 03:20 AM
  2. Help - What is the best software for editing HD videos
    By spilihp1982 in forum AVCHD and HDV editing
    Replies: 0
    Last Post: 03-27-2012, 04:52 PM
  3. I need help editing HD 720P videos.
    By Enigma1992 in forum Technology advice and tips
    Replies: 3
    Last Post: 01-21-2011, 12:24 PM
  4. Editing size of videos
    By Gabo in forum General video editing software help and advice
    Replies: 2
    Last Post: 05-29-2010, 04:23 AM
  5. Videos Editing/Cutting
    By simonnn in forum General video editing software help and advice
    Replies: 4
    Last Post: 03-05-2007, 05:24 PM

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •