FORUMS: list search recent posts

sound length issues in Flash

COW Forums : Adobe Flash

<< PREVIOUS   •   FAQ   •   VIEW ALL   •   PRINT   •   NEXT >>
Scott McDonnell
sound length issues in Flash
on Apr 12, 2013 at 5:08:19 pm

I have some very long scenes in Flash where the sound is going slightly out of sync.

The example scene I have is 2777 frames at 25fps = 111.1s
When I import a sound file that is exactly the same length the sound file as 111.1s in the properties but appears 6 frames short on the timeline.

See below the example there is a pop in the wav at frame 2747:

When I bring the swf into After Effects the lip sync is out by 6 frames and you can see the pop is now at its true location of frame 2753:

In Flash sound file is set to Stream. I have tried a 44.1kHz wav, 48kHz wav, 48kHz aif and Soundbooth ASND file and they all give the same length. Same results in CS5 and CS6.

The only reason I can think of is that Flash is converting on import from 44.1 to 44kHz even for 48kHz files(??).
44/44.1 = .997732426 and if I multiply it by the timeline length of 2777 - I get 2771 which is where the audio stops on the timeline.

The only way I can get it to work is if I stretch the sound externally in something like sox
sox infile.wav outfile.wav speed .997732426
so that when it imports it is the correct length!

Has anybody else encountered this madness?! Am I missing something really simple?

Return to posts index

<< PREVIOUS   •   VIEW ALL   •   PRINT   •   NEXT >>
© 2018 All Rights Reserved