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Participant
April 25, 2022
Question

One full audio clip's time is deferent in the time-line from media browser's clip time

  • April 25, 2022
  • 5 replies
  • 275 views

Hi. Does anybody know. How is it possible that a full clip of a lenght 1:13:01:13 turn out shorter, when dropped into time-line 1:12:56:21. It takes out about 5sec. Dont get it. The content is same. It ends where it should end and starts where it should start. I didnt make any cuts to it, just dropped the whole clip into the time-line. Is it magic or there is some reason why premiere interprets the clip 5sec shorter. What I did with this file: I streched the audio in adobe audition and rendered as a wave, with same output as input. The file in widows explorer has 1h13sec and so is the same in media browser in PPro but when dropped in time line it's about 5 sec shorter. Have a look in the attached screen crops.

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5 replies

Participant
April 25, 2022

Thanks for the replies fellas, although I have not specified that this is only about an audio clip. Let me axplain 🙂 . I'm editing this theater tv style play, which is around an hour long. It's a comedy, and the actors played it a bit too slow for the effect that the director wanted. So the director wants some more dynamic. I suggested to speed the whole thing up to 105%. This is what I have noticed, studios often did in old comedys, If the speed is added very mildly, viewers don't even notice unnatural speed, in the effect the movie gets more comedy vibe. So I did it, and it works great visually, but for me the audio is the problem. For this to work the audio needs to be spedup without the flanging effect. I want to achevie what you tube does in speed variations options, their algorythms make it so clear. There is no sound flanging at all. Unfotunately Premiere is not very good at it. When done automatically, by ticking the "keep the audio ptich", it comes out with this tubelike resonanses. Even thrying to make it manyally by adding the ptichshift my self couldn't cope with it. So I have rendered the whole audio as a wave. Than I dropped it to Audition where sound streching does a lot better job. So, to have a perfect sync lenght. I entered the exact lenght of the speeded up video from PP. Tweaked the streching option and final sounds alright, it's not perfect but it's alright. Rendered it. And than to my surprise the actual audio leght is different from the clip dropped as a whole into the time-line, by 5 sec. It has nothing to do with the frame rates as it is not linked to the video but I do need it to be the very same leght as the video to be sincing with the video of the play. I'll tell you what I did. I re-edited the audio in Audition, streched it so it would be this 5 sec longer and now it when dropped to the time-line it's the same lenght as the video, wierd, or maybe I don't know something. Audio does not have frames, it's got time in miliseconds. How can this be, that Premiere interprets this clip by 5 sec difference. In the win explorer even the re-streched version is the same 5 sec longer than the time line dropped clip. Video is synced with the sound now. So I kinda worked it out, but still don't know why premiere did this leght de-sync. 

Ann Bens
Community Expert
Community Expert
April 25, 2022

If you speed up a clip the duration becomes less.

R Neil Haugen
Legend
April 25, 2022

That could easily be simply a drop-frame versus non-drop-frame issue. On a program of that length. Drop-frame uses the colons as your timeline shows, non-drop-frame uses a semicolon between values. And I don't know what your media and settings are.

 

Neil

Everyone's mileage always varies ...
Community Expert
April 25, 2022

If the clip has timecode associated with it in might be a dropframe/ non-dropframe issue.

Community Expert
April 25, 2022

Interesting. As long as the clip plays fine and everything is in sync I wouldn't worry too much. I'm wondering if the clip may have a variable frame rate. If it was shot on a phone or recorded from the internet it may have a variable frame rate.