# Fade a group bus when an event is playing

**URL:** <https://qa.fmod.com/t/fade-a-group-bus-when-an-event-is-playing/15677>\
**Category:** FMOD Studio\
**Created:** [April 22, 2020, 7:58pm UTC](https://qa.fmod.com/t/fade-a-group-bus-when-an-event-is-playing/15677 "2020-04-22T19:58:53Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![anghr](https://avatars.discourse-cdn.com/v4/letter/a/35a633/32.png) [@anghr](https://qa.fmod.com/u/anghr)\
**Post date:** [April 22, 2020, 7:58pm UTC](https://qa.fmod.com/t/fade-a-group-bus-when-an-event-is-playing/15677/1 "2020-04-22T19:58:53Z")

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Hello,

I’m using fmod studio to add audio to my game and I was wondering how I could fade a group bus when an event is playing ?

Mainly, i want to fade my music group bus when a specific event is playing

Thanks

EDIT :  
I figured I needed a snapshot instrument, but I can’t figure how to tie the volume automation to the duration of the snapshot

EDIT 2 :  
Made 3 snapshots, fadeoutmusic, nomusic, fadinmusic and laid them on the track

I think I got it, feel free to give me a better way !