# LPF on FMOD Studio Listener

**URL:** <https://qa.fmod.com/t/lpf-on-fmod-studio-listener/13672>\
**Category:** FMOD Engine\
**Created:** [January 28, 2018, 1:04pm UTC](https://qa.fmod.com/t/lpf-on-fmod-studio-listener/13672 "2018-01-28T13:04:16Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![jodoyoung](https://avatars.discourse-cdn.com/v4/letter/j/e99b99/32.png) [@jodoyoung](https://qa.fmod.com/u/jodoyoung)\
**Post date:** [January 28, 2018, 1:04pm UTC](https://qa.fmod.com/t/lpf-on-fmod-studio-listener/13672/1 "2018-01-28T13:04:16Z")

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In Unity, I’m trying to implement a feature where a player’s constantly falling health value is mapped to a LPF, so the closer the player’s health is to 0, the lower the LPF Frequency. I know I can do this with Unity’s Audio Listener and a LPF component, but is there a way I can do this with FMOD’s Studio Listener? At the moment only sounds using Unity Audio Sources are being filtered.

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**Author:** ![cameron-fmod](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/cameron-fmod/32/261_2.png) [@cameron-fmod](https://qa.fmod.com/u/cameron-fmod)\
**Post date:** [January 30, 2018, 4:15am UTC](https://qa.fmod.com/t/lpf-on-fmod-studio-listener/13672/2 "2018-01-30T04:15:38Z")

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We don’t have a direct way to do this in Unity, not without first setting it up in FMOD Studio.

You could use a Snapshot to control volume levels and lowpass depending on the players health, by adjusting the Intensity of the snapshot (0-100%).

[https://fmod.com/resources/documentation-studio?page=mixing.html#snapshots-and-the-tracks-view](https://fmod.com/resources/documentation-studio?page=mixing.html#snapshots-and-the-tracks-view)

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<div class="post-metadata">

**Author:** ![jodoyoung](https://avatars.discourse-cdn.com/v4/letter/j/e99b99/32.png) [@jodoyoung](https://qa.fmod.com/u/jodoyoung)\
**Post date:** [January 30, 2018, 1:23pm UTC](https://qa.fmod.com/t/lpf-on-fmod-studio-listener/13672/3 "2018-01-30T13:23:49Z")

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> [@](#):
>
> We don’t have a direct way to do this in Unity, not without first setting it up in FMOD Studio.
> 
> You could use a Snapshot to control volume levels and lowpass depending on the players health, by adjusting the Intensity of the snapshot (0-100%).
> 
> [https://fmod.com/resources/documentation-studio?page=mixing.html#snapshots-and-the-tracks-view](https://fmod.com/resources/documentation-studio?page=mixing.html#snapshots-and-the-tracks-view)

Thanks so much for your reply, I haven’t really looked into snapshots and this looks like it could be the perfect solution. Cheers!