# Smooth Parameter Automation

**URL:** <https://in-thread.sonic-pi.net/t/smooth-parameter-automation/1626>\
**Category:** Support, Help & Resources\
**Created:** [October 29, 2018, 3:45pm UTC](https://in-thread.sonic-pi.net/t/smooth-parameter-automation/1626 "2018-10-29T15:45:53Z")\
**Posts on this page:** 4\
**Page:** 2

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**Author:** ![Martin](https://dub1.discourse-cdn.com/flex017/user_avatar/in-thread.sonic-pi.net/martin/32/157_2.png) [@Martin](https://in-thread.sonic-pi.net/u/Martin)\
**Post date:** [November 14, 2018, 4:51pm UTC](https://in-thread.sonic-pi.net/t/smooth-parameter-automation/1626/21 "2018-11-14T16:51:10Z")

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Hi @robin.newman,

yes! It does work. I am very greatful for this intelligent piece of code! As soon as possible I will try out some of my uses cases. This will most probably go into my startup library to be available as a standard extension.

To explain my earlier posting: Currently I have 3 SP versions, which I can start (3.1 and two 3.2x dev versions). There are some irregularities, which I am not surprised of that being developement versions. F. e. the [midi fader control](http://in-thread.sonic-pi.net/t/setting-playback-parameters-via-midi/1682) was not running stable (besides my stupid coding error). I also had some not expected issues with `control` when I first started building a fader function. In effect the same code ran one day and failed [a few months later](http://in-thread.sonic-pi.net/t/smoothly-fading-samples-and-synths/528/23).

But this can be due to a lot of reasons. I did not have the time to investigate in a systematic way… Actually it was kind of the same with [your example](http://in-thread.sonic-pi.net/t/smooth-parameter-automation/1626/19). So I still don’t know if it is just me, the SP version I am using or some reason rooted in my system environement or current state. Anyhow… time will show.

Martin

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**Author:** ![robin.newman](https://avatars.discourse-cdn.com/v4/letter/r/76d3ee/32.png) [@robin.newman](https://in-thread.sonic-pi.net/u/robin.newman)\
**Post date:** [November 14, 2018, 7:07pm UTC](https://in-thread.sonic-pi.net/t/smooth-parameter-automation/1626/22 "2018-11-14T19:07:39Z")

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Glad it’s working for you. I’ve enjoyed playing with this. I’ve tried it with more complex setups using both fx calls (inside a live loop) and other parameters such as pan and echo. Can get some quite nice setups.

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**Author:** ![achim](https://avatars.discourse-cdn.com/v4/letter/a/ce7236/32.png) [@achim](https://in-thread.sonic-pi.net/u/achim)\
**Post date:** [November 29, 2018, 10:04pm UTC](https://in-thread.sonic-pi.net/t/smooth-parameter-automation/1626/23 "2018-11-29T22:04:22Z")

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I just started using SP and was looking for a way to fade in a bass line. This seems to do the trick! I’ll def be playing around with it. Thanks

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**Author:** ![jonny](https://avatars.discourse-cdn.com/v4/letter/j/47e85d/32.png) [@jonny](https://in-thread.sonic-pi.net/u/jonny)\
**Post date:** [November 2, 2023, 12:46pm UTC](https://in-thread.sonic-pi.net/t/smooth-parameter-automation/1626/24 "2023-11-02T12:46:28Z")

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More gold from Robin 👌  
Lots to unpack here!

I guess my first question is, were the original aims achieved, eg “full real-time fader control” (if that’s accurate), including ability to change fade type

Another fascinating thread!

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