# APC40 will not talk to Traktor (osx)

**URL:** <https://forum.djtechtools.com/t/apc40-will-not-talk-to-traktor-osx/5839>\
**Category:** Controller Mappings\
**Created:** [September 19, 2009, 1:23pm UTC](https://forum.djtechtools.com/t/apc40-will-not-talk-to-traktor-osx/5839 "2009-09-19T13:23:53Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ransomz](https://avatars.discourse-cdn.com/v4/letter/r/f19dbf/32.png) [@ransomz](https://forum.djtechtools.com/u/ransomz)\
**Post date:** [September 19, 2009, 1:23pm UTC](https://forum.djtechtools.com/t/apc40-will-not-talk-to-traktor-osx/5839/1 "2009-09-19T13:23:53Z")

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**APC40 will not talk to Traktor (osx)**

Hi,

I have just received my apc 40 and am trying to get it to control Traktor. The apc works fine with live, however with traktor no midi from the apc get to traktor, the midi light doesnt flash and when i go into learn mode there is no midi getting through. I have selected the apc in the relevant panel in traktor preferences as the midi device. One thing that puzzles me is the the APC does show up as a midi devices in osx audi midi seup ?

Any help appreciated !!!

John

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<div class="post-metadata">

**Author:** ![ransomz](https://avatars.discourse-cdn.com/v4/letter/r/f19dbf/32.png) [@ransomz](https://forum.djtechtools.com/u/ransomz)\
**Post date:** [September 19, 2009, 7:09pm UTC](https://forum.djtechtools.com/t/apc40-will-not-talk-to-traktor-osx/5839/2 "2009-09-19T19:09:06Z")

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sorted, midi worked for some reason when i plugged in the soundcard