Scratch Live 2.1 Manual
for Rane SL 3
System Overview
The Scratch Live control records and CDs are pressed with an audible tone specifically developed for controlling the Scratch Live software application.
The SL 3 interface converts the control signal coming from each deck into digital audio, to be sent via USB to the Scratch Live software, which decodes that signal into a stream of information based on what the DJ is doing with the control disc. A virtual ‘deck’ replicates the movements of the control disc. Audio files loaded onto the Virtual Decks are then played back through the outputs of the hardware, with any manipulation of the control discs reproduced on the audio, effectively emulating vinyl control of the files loaded in software.
Connecting the SL 3
To integrate an SL 3 unit into a typical DJ setup, connect it to your turntables (or CD players) and mixer, as follows:
1. Inputs
Connect your CD players or turntables to the DECK INPUTS on the Rane SL 3.
*Optional Step: Connect an additional output (such as AUX OUT) from your mixer to the AUX INPUTS on the SL 3 to record your set in Scratch Live. SEE RECORDING FOR MORE INFORMATION.
2. Input Level Selection
Set each input to the correct input level using the dip switches. Set the switches UP for Phono (turntables) or DOWN for Line (CD players).
3. Outputs
Connect the OUTPUTS of the SL 3 to line inputs on your mixer. Connect the AUX output to an additional line input or AUX input on your mixer to output the sample player. SEE SP-6 SAMPLE PLAYER FOR MORE INFORMATION.
4. Connect the SL 3 to your computer
Using the provided USB cable, connect your SL 3 to an available USB 2.0 port on your computer. Make sure you connect it directly to your computer and not through a hub or splitter.
Turntable Setup
1. Set the tone arms to the specific recommendations of the cartridge used, so that the needle never leaves the record, but
not heavy enough that it heats up significantly. Both produce poor tracking.
2. Grounding is extremely important when using Scratch Live. Make sure you have good connections from the ground wires of your turntables to the grounding post of your SL 3. If you do not ground your turntables properly, the control signal will be noisy and the tracking of the record position will be erratic.
3. Ensure the SL 3 is set to receive a phono level signal – See step 2 of connecting the SL 3.
CD Player Setup
Disable all built-in effects on the CD player, including keylock/master tempo. Ensure the SL 3 is set to receive a LINE level
signal – See step 2 of connecting the SL 3.
Kensington Security Slot
You can use a Kensington security cable to attach the SL 3 to an immovable object. Each side of the SL 3 has a Kensington Security Slot. Refer to the instructions provided with your Kensington Lock.