# Help... Multiple Audio out of sync

**URL:** <https://forum.kirupa.com/t/help-multiple-audio-out-of-sync/278528>\
**Category:** flash\
**Created:** [January 1, 2009, 12:08am UTC](https://forum.kirupa.com/t/help-multiple-audio-out-of-sync/278528 "2009-01-01T00:08:10Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![andrewst](https://avatars.discourse-cdn.com/v4/letter/a/96bed5/32.png) [@andrewst](https://forum.kirupa.com/u/andrewst)\
**Post date:** [January 1, 2009, 12:08am UTC](https://forum.kirupa.com/t/help-multiple-audio-out-of-sync/278528/1 "2009-01-01T00:08:10Z")

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I’ve created an audio mixer that plays back 9 MP3 at the same time. This WAS working perfectly for me, but a few days ago I got a computer virus and since reinstalling everything, it’s not sync-ing up like it used to. It seems like the 1st 5 MP3 are synced together and the last 4 are synced together, but the last 4 play slightly later than the 1st 5. Here is the code I used to assign each MP3 to its own clip.

totalTracks=9;  
for (i=1; i\<totalTracks+1; i++) {  
newSoundHolder=\_root.createEmptyMovieClip(‘holder’+i,i)  
\_root[‘mySound’+i] = new Sound(newSoundHolder);  
\_root[‘mySound’+i].attachSound(‘sound’+i);  
\_root[‘mySound’+i].setVolume(0);  
\_root[‘mySound’+i].start();  
\_root[‘slider’+i+’\_mc’].mySound=\_root[‘mySound’+i]  
}

Can anyone tell me why they play off sync now, or what I could add to make them start playing at the same time?