How to Stream Your

TRAKTOR Performance to
YouTube Live or Twitch
In this article, we will explore how you can stream your DJ
set using TRAKTOR on YouTube Live or Twitch via OBS.

Note: for more information on these streaming services,

click here for YouTube Live and here for Twitch.
Additionally, we recommend using a third-party
application called OBS (Open Broadcaster Software) in
order to stream from your computer to Twitch. It can also
be used with YouTube Live but is not necessary. Click
here to find more information on how to use OBS.

There are three different main methods that you can

utilize in order to route your audio back into your stream.
This scheme shows the pros and cons of the individual
setups - followed by step-by-step instructions:
Here, you can find step-by-step instructions for the three
setups:

SETUP A: Routing audio from a

controller/mixer to a secondary audio
interface
This method is possibly easiest but not necessarily
accessible to all. If besides your mixer or DJ controller you
have a second audio interface, follow the steps below:

1. Connect your DJ controller or DJ mixer to the

laptop as you usually do and launch TRAKTOR PRO
(or TRAKTOR DJ). Play a song and do a quick
soundcheck to verify that audio is output on the
Main-Out and Headphone-Out as expected. If you
are experiencing issues, please refer to our Traktor &
DJ Help.
2. Connect the outputs of your mixer or controller into
the inputs of your secondary audio interface. In this
 case, we are routing the RCA outputs of a TRAKTOR
KONTROL S2 MK3 into the In 3 and In 4 of a
KOMPLETE AUDIO 6 MK2. The Left (L) output
goes to In 3 and the Right (R) output goes to In 4.
Depending on how you connect your speakers, you
can also use a TRS 1/8" to dual mono 1/4" cable
and connect the 1/8" jack to the S2 MK3 and
the 1/4" jacks into In 3 and In 4.

Note: if you are using In 1 and In 2 of the Komplete

Audio 6, make sure that the inputs on the audio
interface are set to LINE and adjust both GAIN knobs
equally to get a perfect stereo balance and low
enough to avoid distortion.
3. Download and install the free streaming app OBS
Studio from the OBS Project website.
4. Open OBS. In the Sources area at the bottom of the
main OBS window, click on the + icon and
select Audio Input Capture.
5. In the window that opens, select Create New and
name the device according to the soundcard you are
using; here, we are naming it KA6MK2 for the
KOMPLETE AUDIO 6 MK2.

6. Click on the box next to Make source visible and

save your settings by clicking on OK.
7. In the new window that opens, select your audio
interface as a Device. In our example, we are
 selecting Komplete Audio 6 MK2:

8. Make sure that the meters in OBS are reacting to

sound playing in TRAKTOR. After connecting OBS to
your YouTube Live or Twitch accounts, you are now
ready to start streaming your performance! Find
more about how to setup and trouble shoot OBS on
this OBS website.

SETUP B: Routing audio with one audio

interface via spare line input
If you want to stream audio from your software and you
have an audio interface that has one unused stereo inputs
or two unused mono inputs, you can then do the
following:

1. Connect your DJ controller or DJ mixer to the laptop

as you usually do and launch TRAKTOR PRO 3 (or
TRAKTOR DJ 2). Play a song and do a quick
soundcheck to verify that audio is output on the
Main-Out and Headphone-Out as expected. If you
are experiencing issues, please refer to our Traktor &
 DJ Help.
2. With two RCA cables, connect your Main Out
Left and Right outputs into Line In D Left and Right
inputs on the back of your S4 MK3.

3. Download and install the free streaming app OBS

Studio from the OBS Project website.
4. Open OBS. In the Sources area at the bottom of the
main OBS window, click on the + icon and
select Audio Input Capture.

5. In the window that opens, select Create New and

name the device appropriately; here, we are naming it
 S4MK3 for the S4 MK3 that we are using.

6. Click on the box next to Make source visible and

save your settings by clicking on OK.
7. In the next pop-up window, select the Traktor
Kontrol S4 MK3 as your Device.

8. Make sure that the meters in OBS are reacting to

sound playing in TRAKTOR. After connecting OBS to
your YouTube Live or Twitch accounts, you are now
ready to start streaming your performance! Find
more about how to setup and trouble shoot OBS on
this OBS website.
SETUP C: Routing audio internally via
virtual audio cable (Mac only)
If you have no additional external audio interface available
or if your DJ controller does not have any spare inputs,
follow these steps:

1. Installing Soundflower

1. Download the Soundflower installer here:

https://soundflower.en.softonic.com/mac/download
2. Unpack the downloaded file Soundflower-2-
0b2.dmg. The package contains the installer,
instructions and an uninstaller, which allows to restart
from scratch in case of installation problems.
3. Double click the installation contained in the package
Soundflower.pkg.
4. You will instantly receive a warning message that
Soundflower is from an unidentified developer.
Confirm with OK:

5. Open the macOS System Preferences and go to the

Security and Privacy tab. There, you will find a
 notification about the blocked Soundflower.pkg
installation. Click Open anyway:

6. The installation will resume now. Follow the

instructions and enter your macOS password, when
prompted.
7. After the installation process, restart your computer.

After launching the Audio MIDI

Setup from Applications > Utilities, there should be two
new entries Soundflower (2ch) and Soundflower
(64ch) in the sidebar on the left:

For our purpose the Soundflower (2ch) interface will be

sufficient. Audio sent by any application to this virtual
output is available for any other audio application on the
respective Soundflower (2ch) inputs - as if this was a
virtual audio cable between the applications.
2. Creating a new Aggregated Device:

As TRAKTOR can only output audio to a single audio

device, the virtual audio cable has to be "aggregated"
with your DJ audio interface into a new single audio
interface with all inputs and outputs.

1. Start the Audio MIDI Setup from Applications >

Utilities. Click on Window > Show Audio Devices.

2. Click on the + logo at the bottom left of the Audio

Devices window and select Create Multi-Output
Device.

3. Select your S2/S4 MK3 and Soundflower (2ch) by

ticking the little box in the Use column. If you do not
have a TRAKTOR KONTROL device, you can simply
select your MacBook Pro Speakers or External
Headphones – the latter option will only appear if
they are plugged into your computer.
 Here, we have named the Multi-Output Device S4 +
SF by simply double-clicking on its original name.

3. Setting Up TRAKTOR PRO

1. Launch TRAKTOR PRO 3 > Preferences.

2. In the Audio Setup tab, select S4 + SF as an Audio

Device. Additionally, a Sample Rate of 48000 is
recommended for synchronizing visuals in OBS,
whether it is a video feed from a webcam or CGI.

3. Go to the Output Routing tab and select the output

device that you created in step 4 as Output Record.
Here, we are selecting S2/S4 + SF. The Output
Record is the one that will be used for providing
your audio to the streaming app running on the
same computer. Your output routing should look
similar to this:
4. Open the Mix Recorder settings and set the Source
to Internal to make sure that the signal provided to
the Output Record is the internal recording signal.

5. Download and install the free streaming app OBS

Studio from the OBS Project website.
6. Launch OBS and click on the + logo in the Sources
column, then select Audio Input Source.
7. In the window that opens, select Create new and
name the input source. We have named
it Soundflower in this instance. Tick the Make
source visible box and click on OK.

8. In the Device dropdown menu, select Soundflower

(2ch) and press OK.
 9. After connecting OBS to your YouTube Live or Twitch
accounts, you are now ready to start streaming your
performance! Lower the volume fader in OBS in order
to avoid distortion. Also, make sure that you have
pressed the Unmute button on your computer,
as Soundflower is affected by this.

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