# Is there a way to trigger the lpf to create an auto-wah effect?

**URL:** <https://uzu.lurk.org/t/is-there-a-way-to-trigger-the-lpf-to-create-an-auto-wah-effect/4911>\
**Category:** TidalCycles\
**Tags:** questions\
**Created:** [1 October 2023 15:13 UTC](https://uzu.lurk.org/t/is-there-a-way-to-trigger-the-lpf-to-create-an-auto-wah-effect/4911 "2023-10-01T15:13:56Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![ShaiR](https://uzu.lurk.org/user_avatar/uzu.lurk.org/shair/32/2304_2.png) [@ShaiR](https://uzu.lurk.org/u/ShaiR)\
**Post date:** [3 October 2023 18:57 UTC](https://uzu.lurk.org/t/is-there-a-way-to-trigger-the-lpf-to-create-an-auto-wah-effect/4911/4 "2023-10-03T18:57:43Z")

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Another approach is to define a new effect in superdirt. See here [Filter envelope - #7 by ShaiR](https://club.tidalcycles.org/t/filter-envelope/2977/7)

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