# A slider to fade between two simultaneously playing mp3's?

**URL:** <https://forum.kirupa.com/t/a-slider-to-fade-between-two-simultaneously-playing-mp3s/317364>\
**Category:** flash\
**Created:** [December 17, 2010, 7:11pm UTC](https://forum.kirupa.com/t/a-slider-to-fade-between-two-simultaneously-playing-mp3s/317364 "2010-12-17T19:11:07Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![jerryisgood](https://avatars.discourse-cdn.com/v4/letter/j/cab0a1/32.png) [@jerryisgood](https://forum.kirupa.com/u/jerryisgood)\
**Post date:** [December 17, 2010, 7:11pm UTC](https://forum.kirupa.com/t/a-slider-to-fade-between-two-simultaneously-playing-mp3s/317364/1 "2010-12-17T19:11:07Z")

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Greetings!

I have two mp3’s that will play at the same time. One is a beat, the other is the vocals. What I would like to do is create a lever that would allow the user to fade between the two. So if the lever is in the middle, they will hear the vocals and beat … right would be just the beat … and left just the vocals.

Would anyone know how to accomplish this or perhaps offer a starting point?

Thanks in advance 🙂

Best,  
J