# Invert Midi Fader

**URL:** <https://forum.bome.com/t/invert-midi-fader/7070>\
**Category:** Bome Products\
**Tags:** midi-translator, fader, akai-apc\
**Created:** [March 11, 2025, 7:08am UTC](https://forum.bome.com/t/invert-midi-fader/7070 "2025-03-11T07:08:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![camillo.pietsch](https://forum.bome.com/letter_avatar_proxy/v4/letter/c/cab0a1/32.png) [@camillo.pietsch](https://forum.bome.com/u/camillo.pietsch)\
**Post date:** [March 11, 2025, 7:08am UTC](https://forum.bome.com/t/invert-midi-fader/7070/1 "2025-03-11T07:08:15Z")

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Is it possible to invert a midi fader so that values do not change from 0 to 127, but from 127 to 0.

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<div class="post-metadata">

**Author:** ![SteveC](https://forum.bome.com/user_avatar/forum.bome.com/stevec/32/8250_2.png) [@SteveC](https://forum.bome.com/u/SteveC)\
**Post date:** [March 11, 2025, 2:24pm UTC](https://forum.bome.com/t/invert-midi-fader/7070/2 "2025-03-11T14:24:03Z")

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Yes, please find the attached. The key rule that does this is taking the input value of qq and subtracting it from 127.

```auto
// Capture values for display only
rr=oo+1
tt=qq
// invert value
qq=127-qq
// display values
Log "Log CC %pp% in MIDI CH %rr% incoming value=%tt% outgoing value=%qq%"

```

We use oo as the incoming MIDI CH, pp as the CC# and qq as the value.

I have my aliases set up as follows:

 ![image](https://forum.bome.com/uploads/default/original/2X/5/572ad2885a0b5e6bce5cab41464a3ba125f01f20.png)

You can learn more about aliases from [this tutorial](https://youtu.be/CrE391VJL0s).

My port selection is as follows.

 ![image](https://forum.bome.com/uploads/default/original/2X/4/4216c89c42fcb7bf054cbbc65e862f86a6b4407e.png)

For more information about device selection, see [this tutorial](https://youtu.be/KunN2A1rKMY).

[CC-Reverse-value.bmtp](https://forum.bome.com/uploads/short-url/vKH5UQrsvuue3mY6IqC4sN9TSRP.bmtp) (1.8 KB)

Steve Caldwell  
Bome Customer Care

* * *
_Also available for paid consulting services: bome@sniz.biz_