How to: Broadcast using Traktor S4 (Mac)

This article explains how to broadcast on Mixlr using DJ software – Traktor and an external controller – Traktor S4. You’ll be using Traktor to mix tracks from your computer, and the S4 to control your levels, crossfader etc. Your entire set will be broadcast live and direct on Mixlr. Sweet!

These instructions can be translated to almost any external controller or audio interface.

Step 1 – Open Traktor Preferences

You will find the audio preferences in Traktor’s settings:

Step 2 – Traktor Audio Setup

Ensure the Audio Setup settings in Traktor are as follows:​

Step 3: Traktor Output Routing

In the Output Routing settings in Traktor, ensure the Output Monitor and Output Master are as follows:

Step 4: Connect output to input on the S4

Traktor is sending audio to Output, whilst Mixlr is trying to receive audio from the Input.

Physically route Main Out 1 and 2 to Input Channel C 1 and 2 on the S4 using a phono to phono cable: 

Step 5: Connect the S4 to your speakers

Use the remaining outputs in Main Out to connect your speakers:

Step 6: Open Mixlr

Open the Mixlr app. If you haven’t downloaded it yet, you can do so here.

Step 7: Select the S4 as your audio source:

Tip – To check that Mixlr is receiving the audio, start playing a track in Traktor and check the VU meter is responding in the Mixlr app.

Step 8: Go live and enjoy!

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