Audio Duration

[biferi]

I have Win11 and Movie Stdio 15 and I made a video.

I Render my video with out Audio.

I open my video in MediaInfo and click the Tab that says Tree.

I see the specs for my video and go down to Audio Duration and it says 1:11 Seconds.

So I open Audacity to make my Music and at the bottom of the screen it tell you the Audio Duration.

I make it 1:11 Seconds.

I save it and open it in Movie Studio 15 to put with my video.

The Audio stops a little bit before the video ends.

I know I can Drag the video to fit the Audio or I can Drag the Audio to fit the video but it will look bad or sound bad.

What is going on?

[ProWo]

The Audio stops a little bit before the video ends.
What is going on?

You are missing the milliseconds.
BTW: If you've created a video without audio, you can't retrieve the audio duration.
What you need is the exact video duration (including milliseconds).
The generated audio file must have exactly the same duration.

clever FFmpeg-GUI shows you the exact video (and audio, if any) duration.