# Add Parameter Modulation AHDSR to Fade a Track **URL:** \ **Category:** FMOD Studio\ **Created:** [January 19, 2016, 10:35am UTC](https://qa.fmod.com/t/add-parameter-modulation-ahdsr-to-fade-a-track/12252 "2016-01-19T10:35:11Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![matiaslizana](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/matiaslizana/32/185_2.png) [@matiaslizana](https://qa.fmod.com/u/matiaslizana)\ **Post date:** [January 19, 2016, 10:35am UTC](https://qa.fmod.com/t/add-parameter-modulation-ahdsr-to-fade-a-track/12252/1 "2016-01-19T10:35:11Z")
Hi All, I’m trying to put a parameter on FMOD that is between 0 and 1, and fade in a track when its value is 1. The problem I have is that I can’t make the fade, because when the parameter is 1 the volume goes from -inf to 0db immediatly. I think I can do this using a modulator in the parameter (right click to parameter and add modulation AHDSR, but when I click nothing appears… Someone knows what happens? Thanks in advance ---
**Author:** ![matiaslizana](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/matiaslizana/32/185_2.png) [@matiaslizana](https://qa.fmod.com/u/matiaslizana)\ **Post date:** [January 19, 2016, 10:50am UTC](https://qa.fmod.com/t/add-parameter-modulation-ahdsr-to-fade-a-track/12252/2 "2016-01-19T10:50:29Z")
I’m referring to the first title on page 118 from the manual (Parameter Modulation), but I don’t know how to manage. ---
**Author:** ![matiaslizana](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/matiaslizana/32/185_2.png) [@matiaslizana](https://qa.fmod.com/u/matiaslizana)\ **Post date:** [January 19, 2016, 10:56am UTC](https://qa.fmod.com/t/add-parameter-modulation-ahdsr-to-fade-a-track/12252/3 "2016-01-19T10:56:05Z")
It’s done, it doesn’t apply if you don’t stop and replay the scene. Thanks