# Lag on swf - no sync after upload

**URL:** <https://forum.kirupa.com/t/lag-on-swf-no-sync-after-upload/213381>\
**Category:** Uncategorized\
**Created:** [January 19, 2007, 2:54am UTC](https://forum.kirupa.com/t/lag-on-swf-no-sync-after-upload/213381 "2007-01-19T02:54:48Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![goonie](https://avatars.discourse-cdn.com/v4/letter/g/43a26b/32.png) [@goonie](https://forum.kirupa.com/u/goonie)\
**Post date:** [January 19, 2007, 2:54am UTC](https://forum.kirupa.com/t/lag-on-swf-no-sync-after-upload/213381/1 "2007-01-19T02:54:48Z")

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This is driving me nuts and I can’t find a solution on google… just me then?

OK: swf’s sync fine when played from my desktop - sound and vision are playing in correct time.

BUT when I upload them the timing is off. And it’s driving me batty.

It is very bad on one movie that I’ve set to play at 14 frames/second. After upload, the sound frames are badly out of sync with the vision - sound plays sooner. argh 😑  
\*\*  
Q: does the sound element of a swf auto reset to 12 frames/second when playing within a browser window?\*\*

[And if so, doesn’t that kind of defeat the point of letting you change the frame rate?]