3. CONCEPTS
In this section you are briefly introduced to the main concepts of the TRAKTOR KONTROL S4 and
some basic concepts of the TRAKTOR software.
3.1. S4 and TRAKTOR Control Concept
This overview introduces you to the concept of how TRAKTOR KONTROL S4 controls the TRAK-
TOR software.
S4 and TRAKTOR control concept.
(1) Decks: TRAKTOR KONTROL S4 provides you with four virtual Decks. The Decks are where
tracks, Samples and live input are played back. The Decks can be seen as the virtual equivalent to
the good old vinyl or CD decks — with a bunch of additional, powerful features and the flexibility of
a computer-based system. The two Decks on your S4 hardware controller allow you to control the
four software Decks (labeled A, B, C and D) available in TRAKTOR: The left Deck on your S4 can
control Decks A and C in the software. The right Deck on your S4 can control Decks B and D in
the software.
(2) Mixer: Sitting in the middle of your TRAKTOR  KONTROL  S4  controller  and  in  the  middle  of
TRAKTOR’s  window,  the  Mixer  receives  audio  signals  coming  from  the  four  Decks,  on  its  four
channels.  There  is  one  channel  for  each  Deck.  As  with  any  DJ  mixer,  the  Mixer’s  purpose  is  to
adjust the relative level of each channel, to control the channels’ frequency content, and possibly
adding effects before sending the overall result to the MASTER output.
(3) FX Units: The signals coming from the Decks can be further processed by two FX Units loca-
ted at the top of your hardware and software interface. The FX Units give you access to a collec-
tion of high-quality effects included in TRAKTOR. The left FX Unit 1 on your S4 can control the left
FX Unit 1  in  the software. The  right  FX Unit 2  on  your  S4 can control  the  right FX Unit  2  in the
software.
3.2. Haptic Drive Modes
The  Jog  Wheels  on  the  S4  can  be  operated  in  three  different  modes,  called  HAPTIC  DRIVE
MODEs.  Each  HAPTIC  DRIVE  MODE  provides  you  with  different  control  functions  for  the  Jog
Wheels.
Concepts
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