# Is there a way to make an Instrument or Channel play only the first time the event is triggered?
**URL:** https://qa.fmod.com/t/is-there-a-way-to-make-an-instrument-or-channel-play-only-the-first-time-the-event-is-triggered/19376
**Category:** FMOD Studio
**Tags:** unity
**Created:** [October 8, 2022, 10:51pm UTC](https://qa.fmod.com/t/is-there-a-way-to-make-an-instrument-or-channel-play-only-the-first-time-the-event-is-triggered/19376 "2022-10-08T22:51:01Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@yossirafa100](https://qa.fmod.com/u/yossirafa100)
#### Post date: [October 8, 2022, 10:51pm UTC](https://qa.fmod.com/t/is-there-a-way-to-make-an-instrument-or-channel-play-only-the-first-time-the-event-is-triggered/19376/1 "2022-10-08T22:51:01Z")
Hey guys, kinda new guy to FMod here.
So basically, I designed an event where a heavy enemy lands on is a car and wrecks it.
This is like an attack form it has, meaning it can land on the car multiple times.
I created a layer where a window is violently breaking after the enemy lands,
but after like once it starts to sound really annoying
also I thought about adding another channel where there are only small fragments of glass heard after the first massive window break.
My question is whether there is a way to make a channel or the Instrument of the violent window break to only play for the first time the event is triggered, and afterwards having it not playing anymore?
Also, I guess doing the opposite - making the small glass fragments event not play the first time exclusively, and then afterwards “unlock”.
I am using FMod Studio 2.02.04.
Thanks in advanced folks!
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### Author:  [@Alcibiade](https://qa.fmod.com/u/Alcibiade)
#### Post date: [October 9, 2022, 12:01pm UTC](https://qa.fmod.com/t/is-there-a-way-to-make-an-instrument-or-channel-play-only-the-first-time-the-event-is-triggered/19376/2 "2022-10-09T12:01:38Z")
Hi,
It could be possible in fmod, by using a “count” parameter and increment it by a command instrument, but the correct way to do that in my opinion is to create 2 distinct events (or 1 event with 2 states controlled by a parameter) and to call the correct event (or the event with the correct parameter value) from the game code.