# AHDSR transition not working only on WebGL platform

**URL:** https://qa.fmod.com/t/ahdsr-transition-not-working-only-on-webgl-platform/15010
**Category:** Unity
**Created:** [September 3, 2019, 5:46am UTC](https://qa.fmod.com/t/ahdsr-transition-not-working-only-on-webgl-platform/15010 "2019-09-03T05:46:25Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![voodooace](https://avatars.discourse-cdn.com/v4/letter/v/df705f/32.png) [@voodooace](https://qa.fmod.com/u/voodooace)
#### Post date: [September 3, 2019, 5:46am UTC](https://qa.fmod.com/t/ahdsr-transition-not-working-only-on-webgl-platform/15010/1 "2019-09-03T05:46:25Z")

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Hi, I am using a very basic AHDSR + looping for BGM but it doesn’t work on the WebGL platform. It works perfectly fine for PC/Android builds. The music just loop without decreasing in volume.

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### 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: [September 9, 2019, 2:14am UTC](https://qa.fmod.com/t/ahdsr-transition-not-working-only-on-webgl-platform/15010/2 "2019-09-09T02:14:46Z")

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It seems to work on our machines. We are using FMOD Studio 2.00.04 and Firefox/Chrome.

Could you please post your code and explain where the AHDSR modulator is in your event?