# Controlling Effect's bypass via snapshot, is it possible? **URL:** \ **Category:** FMOD Studio\ **Created:** [March 11, 2021, 5:22pm UTC](https://qa.fmod.com/t/controlling-effects-bypass-via-snapshot-is-it-possible/16861 "2021-03-11T17:22:51Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![cgd11](https://avatars.discourse-cdn.com/v4/letter/c/47e85d/32.png) [@cgd11](https://qa.fmod.com/u/cgd11)\ **Post date:** [March 11, 2021, 5:22pm UTC](https://qa.fmod.com/t/controlling-effects-bypass-via-snapshot-is-it-possible/16861/1 "2021-03-11T17:22:51Z")
Hello everyone! I have looked in the forum but I have not found the answer, I don’t know if I am doing something wrong. My idea is to appy an effect to a bus (a simple filter) but activate it only when a snapshot is on. I have tried with the scope in, flip to faders and trying to assignate it to the snapshot but I haven’t managed to be successfull. I have looked into the documentation but found no clue. I don’t know, maybe I am missing something or maybe it is not possible to do it this way. Has anyone able to solve this? Thank you all in advance! ---
**Author:** ![Alcibiade](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/alcibiade/32/4284_2.png) [@Alcibiade](https://qa.fmod.com/u/Alcibiade)\ **Post date:** [March 11, 2021, 9:12pm UTC](https://qa.fmod.com/t/controlling-effects-bypass-via-snapshot-is-it-possible/16861/3 "2021-03-11T21:12:19Z")
If there’s no relevant parameter for activating the effect, you could put that effect on a separate bus and automate the send level to this bus in a snapshot. ---
**Author:** ![cgd11](https://avatars.discourse-cdn.com/v4/letter/c/47e85d/32.png) [@cgd11](https://qa.fmod.com/u/cgd11)\ **Post date:** [March 12, 2021, 11:07am UTC](https://qa.fmod.com/t/controlling-effects-bypass-via-snapshot-is-it-possible/16861/4 "2021-03-12T11:07:26Z")
First of all, thank you for your answer! In this case what I want is to apply a filter to a bus in the mixing view. The idea being that when something happens I trigger a filter in one of the mixing buses. I could do something with what you are saying, yes (and thank you for the idea!). But it seems kind of weird to me that you cannot activate a filter with a snapshot directly, no? I mean, why have the option to “flip to faders” or “scope in” the bypass of the effect on the first place? Either way, thank you for your help! ---
**Author:** ![Alcibiade](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/alcibiade/32/4284_2.png) [@Alcibiade](https://qa.fmod.com/u/Alcibiade)\ **Post date:** [March 12, 2021, 11:33am UTC](https://qa.fmod.com/t/controlling-effects-bypass-via-snapshot-is-it-possible/16861/5 "2021-03-12T11:33:20Z")
And after thinking twice, the send on a separate bus may not be good, if you want to process the sound entirely (or it should be prefader, while automating the volume fader down when the send is on). I don’t think an affect could be bypassed with a snapshot, but there’s almost always some parameter in it you can change to go from no effect to the effect you want. With a frequency filter, you can automate either the frequency threshold or the dB reduction. What’s the exact effect you would like to apply, with which values? ---
**Author:** ![richard\_simms](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/richard_simms/32/261_2.png) [@richard\_simms](https://qa.fmod.com/u/richard_simms)\ **Post date:** [March 18, 2021, 2:08am UTC](https://qa.fmod.com/t/controlling-effects-bypass-via-snapshot-is-it-possible/16861/6 "2021-03-18T02:08:24Z")
As @Alcibiade has pointed out, the best setup for this situation would be to use a pre-fader send set to -oodB which the snapshot brings up to the desired decibel and brings down the group bus’s fader as needed - think of this as a wet/dry property, the send is the wet and the fader is the dry. There currently isn’t a way to automate bypassing effects but it is something we are interested in looking into in a future release. ---
**Author:** ![cgd11](https://avatars.discourse-cdn.com/v4/letter/c/47e85d/32.png) [@cgd11](https://qa.fmod.com/u/cgd11)\ **Post date:** [March 21, 2021, 8:45am UTC](https://qa.fmod.com/t/controlling-effects-bypass-via-snapshot-is-it-possible/16861/7 "2021-03-21T08:45:34Z")
Thank you @Alcibiade once again. Yes, your second idea is useful as well! And thank you @richard_simms for confirming his first idea. Thank you both for answering. 🙂