Numark Scratch [11/52] Playback modes

To determine whether the calibration was successful: Check the percentage of readable

signal, which is listed on the bottom right of Scope View; it should be close to 85%. Also, with

the control record or control CD stopped (and the needle on the control record), check the

RPM, which is listed in the top right corner of Scope View; it should read 0.0.

If the RPM is fluctuating: move the Noise Threshold Slider until the RPM is stable at 0.0. If

this does not work, there is a grounding or interference problem. Make sure that your turntable

is grounded, that your hardware is not near a power source, and that your RCA cables are not

laying across other power conducting cables.

To use DVS with both Scratch decks: repeat the calibration process for the other deck on

Scratch.

Playback Modes

With DVS, each channel in Serato DJ Pro can be operated in ABS (Absolute), REL (Relative),

or INT (Internal) Mode. Each mode affects how your turntable or CD player will control the

playhead of its corresponding channel in Serato DJ Pro. In particular, choosing between ABS

and REL will affect how you can work your turntable.

In ABS mode, the playhead in Serato DJ Pro will be affected by the movement of the turntable

needle as well as the movement of the control record while scratching. This way, the turntable

in ABS mode mimics the operation of classic vinyl DJing. If you move the needle to a specific

point on your control record, the playhead in the Serato DJ Pro channel will jump to the

corresponding point in the song. This means that hot cues and loops will be disabled; if you

want to jump to a certain point in the song, you need to use the needle.

In REL mode, the playhead in Serato DJ Pro will be affected by the movement of the control

record while scratching; however, the playhead will not be affected by the movement of the

turntable needle. If you reposition the needle and a song is playing on the Serato DJ Pro

channel, the song will continue playing regardless of where you place the needle. This mode

makes it possible to scratch a record while still being able to use the hot cue and loop

functions in Serato DJ Pro. Also, if the needle skips while you’re scratching in REL mode, it

will not affect the playback of the song.

In INT mode, the control record or control CD is disabled from controlling the corresponding

channel in Serato DJ Pro.

To select the playback mode for a Serato DJ Pro channel, click the drop-down menu near

the number of the channel in Serato DJ Pro, which is in the top corner of the virtual deck area

(top left for channel 1; top right for channel 2). Then select between ABS (Absolute), REL

(Relative), and INT (Internal). Alternatively, you can use the following keyboard shortcuts to

enter one of the modes:

• ABS mode: F1 for the left deck, F6 for the right deck

• REL mode: F2 for the left deck, F7 for the right deck

• INT mode: F3 for the left deck, F8 for the right deck

Note: If you are operating in ABS or REL mode and the control record or control CD finishes

playing before the corresponding song finishes in Serato DJ Pro, the channel will automatically

switch into INT mode. This state is temporary and known as “Emergency Internal Mode.”

Once you start playing the control record or control CD again, Serato DJ Pro will automatically

switch back into ABS or REL mode.