# \[APP\]\[Pro\] Splines \[Abandoned\]

**URL:** <https://community.homey.app/t/app-pro-splines-abandoned/40884>\
**Category:** Apps\
**Tags:** app, tools, flow\
**Created:** [January 11, 2021, 11:44am UTC](https://community.homey.app/t/app-pro-splines-abandoned/40884 "2021-01-11T11:44:39Z")\
**Posts on this page:** 1\
**Showing post:** 87

<div class="post-metadata">

**Author:** ![DirkG](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/dirkg/32/118897_2.png) [@DirkG](https://community.homey.app/u/DirkG)\
**Post date:** [February 1, 2021, 5:35am UTC](https://community.homey.app/t/app-pro-splines-abandoned/40884/87 "2021-02-01T05:35:59Z")

</div>

> [@MadMonkey](#):
>
> fade in/out the volume of your speakers or the brightness of your lights with a custom pattern, i.e. start slowly and accelerate at the end

I don’t understand how to get a fade in/out for the volume.

Changing values/tags such as brightness or color temperature which are calculated every 15 minutes over 24 hours is no problem.  
But how do I get a smooth transition from 50% volume to 20% volume within 5 seconds, for example?  
Independent of the time, triggered by an action, e.g. when someone rings the front doorbell.

Can someone explain this? Can someone share flows?  
Or is that not possible at the moment?

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