Video framerate massively out of sync on the final rendering only

Hi all

I used a screen reader program (Cam Studio) to save myself showing something on the screen in full HD and record my voice with a microphone. Due to the program settings that have been apparently set the final file was a 20 fps framerate but was otherwise fine played and downloaded on YouTube with success. However there was a long interval at first until I started talking so I thought I'd use After Effects to crop the video and add a few titles in singles. I created a model to the standard 25 fps 720 p and imported images. Everything seemed fine, he was appearing on the timeline and preview at the same rate as the original. I made him as H264, but the final file was a total mess with the audio that plays normally but the video play faster, perhaps double the speed. I checked the images 'Interpret' > hand ' settings and it was defined on the original framerate 20 fps and also checked the details on VLC which also reported 20 fps. I recreated the comp and tried repeatedly to rule out tweaks, I would put but everything seems to be set up correctly.

Anyone got any ideas?

Thank you very much

KW

Finally it worked.

I went on the whole record that incorrectly displayed as a sequence of images long - he was a little less 11 000 executives and the run time was 9.09. Simple math reveals that this means that the actual framerate was 5.62 fps not the 20 fps that was reported by all of the programs it runs. Defining "Interpret images" to the correct value then made the images make it perfectly in a model of 25 frames per second.

The process with the image sequence was necessary because I did not have a good figure for the actual framerate and only knew he was playing MUCH faster (about four times) the speed, he should have. It seems that the framerate on the file flag was incorrectly, but the file always presents in preview in AE and plays correctly on YouTube and VLC which is kinda weird. My method is a very clumsy to find the solution, but an option if you have similar problems. Of course, the quality of the images is not important, because the real goal is simply to learn the total number of frame, so you can generate a sequence of images with resolutions tiny to save disk space and time. As it was, it took a few minutes to make almost 11 000 images in quarter HD resolution.

Hope it will be useful to you.

Edit: the framerate in real-time was also visible in the images in the preview screen, making the frame of the output method is not necessary, once you know this figure.

Tags: After Effects

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